LHR - SEA

£413 Find Cheap Flights from London Heathrow Airport to Seattle – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Seattle departing on 24/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
£448
Typical prices: £508-£663
British Airways
Mon 31/8Wed 16/9
LHR - SEA • Direct
Cheapest one-way flight
£413
Typical prices: £456-£888
Icelandair
Mon 24/8
LHR - SEA • 1 stop
Advice from real travellers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Virgin Atlantic Economy Delight adds priority boarding and extra legroom on this long-haul.
British Airways premium economy adds 18 cm legroom, priority boarding, and more bags.
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Top airlines
Cheapest • from £448 (return)
Best reviews • 7.9 score
Airline reviews
Airline reviews
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Direct flights
You can fly direct with Alaska Airlines, British Airways, and others. Average duration is 10h 00m
Direct flights
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Direct flights
Direct flights
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Avoid delays
Most punctual • 95% on-time
Best time • Fewest delays
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Top stopover airports
Cheapest • Avg £497 (return)
Shortest trip • 12h 46m (one-way)
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When to book
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 23% compared to booking last minute.
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When to travel
Cheapest • 16% price drop
Most popular
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Flight Deals

Cheap Flights from Heathrow to Seattle (LHR-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to Seattle

Mon, 31 Aug - Wed, 16 Sep
British Airways Logo
09:50 - 11:35
LHR
-
SEA
9h 45mdirect
British Airways Logo
13:30 - 06:45
SEA
-
LHR
9h 15mdirect
£448British Airways
Tue, 20 Oct - Tue, 10 Nov
Multiple Airlines Logo
13:05 - 20:40
LHR
-
SEA
15h 35m
1 stop
Multiple Airlines Logo
08:18 - 08:05
SEA
-
LHR
15h 47m
2 stops
£449Multiple Airlines
Wed, 7 Oct - Mon, 19 Oct
Multiple Airlines Logo
13:05 - 17:55
LHR
-
SEA
12h 50m
1 stop
Multiple Airlines Logo
08:00 - 08:05
SEA
-
LHR
16h 05m
2 stops
£455Multiple Airlines
Tue, 1 Sep - Sat, 12 Sep
British Airways Logo
09:50 - 11:35
LHR
-
SEA
9h 45mdirect
British Airways Logo
13:30 - 06:45
SEA
-
LHR
9h 15mdirect
£456British Airways
Sat, 29 Aug - Thu, 17 Sep
British Airways Logo
09:50 - 11:35
LHR
-
SEA
9h 45mdirect
British Airways Logo
20:20 - 13:45
SEA
-
LHR
9h 25mdirect
£457British Airways
Mon, 24 Aug - Thu, 3 Sep
Icelandair Logo
21:25 - 11:45
LHR
-
SEA
22h 20m
1 stop
Icelandair Logo
23:25 - 20:20
SEA
-
LHR
12h 55m
1 stop
£463Icelandair
Wed, 7 Oct - Mon, 19 Oct
Icelandair Logo
13:05 - 17:55
LHR
-
SEA
12h 50m
1 stop
Icelandair Logo
19:00 - 20:20
SEA
-
LHR
17h 20m
1 stop
£464Icelandair
Tue, 1 Sep - Wed, 30 Sep
Icelandair Logo
13:05 - 17:55
LHR
-
SEA
12h 50m
1 stop
Icelandair Logo
15:40 - 11:55
SEA
-
LHR
12h 15m
1 stop
£465Icelandair
Mon, 24 Aug - Thu, 3 Sep
Icelandair Logo
21:25 - 11:45
LHR
-
SEA
22h 20m
1 stop
Icelandair Logo
23:25 - 11:55
SEA
-
LHR
28h 30m
1 stop
£465Icelandair
Mon, 2 Nov - Tue, 17 Nov
Icelandair Logo
20:35 - 17:00
LHR
-
SEA
28h 25m
1 stop
Icelandair Logo
14:35 - 19:30
SEA
-
LHR
20h 55m
1 stop
£466Icelandair
Booking Insights

KAYAK’s insights & trends for Heathrow to Seattle flights

Get data-powered insights and trends into flights from Heathrow to Seattle to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from London Heathrow Airport to Seattle?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London Heathrow Airport to Seattle departing in August.

What’s the cheapest day of the week to fly from London Heathrow Airport to Seattle?

The average price of all round-trip flights from London Heathrow Airport to Seattle clicked on KAYAK for each day over the last 12 months.

For London Heathrow Airport to Seattle, Thursday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Seattle back to London Heathrow Airport, the best deals are generally found on Tuesday, with Friday being the most expensive.

What is the cheapest month to fly from London Heathrow Airport to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to Seattle is January, where tickets cost £496 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is £665 and £661 respectively.

Can I save money by flying with a stopover from London Heathrow Airport to Seattle?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of £542, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from London Heathrow Airport to Seattle?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London Heathrow Airport to Seattle, you should book around 3 weeks before departure, which saves you about 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Expert advice

Expert advice for your flight from Heathrow to Seattle

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Laura Ratliff

Laura Ratliff

Expert on Virgin Atlantic

Laura Ratliff is a New York-based writer and editor. She lives in downtown Brooklyn with her husband and their beloved dogs. Originally from Texas, she now considers New York City her home. She typically spends more than 200,000 miles on a plane each year and stays in plenty of hotels.

Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Kirstie Pickering

Kirstie Pickering

Expert on LHR

Aviation and business journalist Kirstie didn’t leave England until she was 18 years old, but has since travelled to over 20 countries including Japan, Canada, and Iceland. Her travel expertise lies in European city breaks, including how to find the best locally-owned hotels and restaurants and how to optimise the airport experience for your needs.

Harriet Baskas

Harriet Baskas

Expert on SEA

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, The Points Guy, and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know - Cheap tickets from London Heathrow Airport to Seattle

Low season

January

Cheapest flight

£413
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly (4% more expensive on average)
Flight from London Heathrow Airport to Seattle

When to book flights from Heathrow to Seattle

Are your dates flexible? Find out the best times to travel from Heathrow to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking London Heathrow Airport to Seattle flights

  • Are there hotels near Seattle Airport?

    Several hotels are located near Seattle Airport. The Wingate by Wyndham hotel has a free airport shuttle, fitness centre and free Wi-Fi. The Aloft Seattle Sea-Tac hotel is just down the street from the airport, offers laundry and dry cleaning services and is pet friendly. Another pet-friendly hotel is the Residence Inn which also offers free breakfast and an airport shuttle. The Residence Inn and the Element Hotel are two options that include kitchenettes and microwaves in their rooms.

  • How can I get to Heathrow Airport from central London?

    There is an express train that runs from London Paddington Station to Heathrow Airport around every 15min. The trip takes roughly 15min and tickets cost about £25.00. Children under 15 can travel for free as long as they are travelling with a fare-paying adult or have proof of their flight booking.

  • What's the best way to reach downtown Seattle from the airport?

    The 1 Line Light Rail service runs from the airport to downtown Seattle. The trip takes around 41min. The line also stops at the University of Washington. You can reach the Light Rail Station by heading across the 'Skybridge' from baggage claim. B uses from Seattle Airport depart from near the Light Rail Station. The Rapid Ride A-Line and Route 156 buses both travel to downtown Seattle. Your hotel may also offer a courtesy shuttle from the airport. These shuttles will stop at the courtesy island shuttle lane on the third floor of the car park.

  • Are there hotels at Heathrow Airport?

    There are three hotels connected to Heathrow Airport. The Sofitel Hotel is connected to Terminal 5 and offers a complimentary breakfast. If you're departing from Terminal 4, you might prefer to stay at The Hilton which has a fitness centre and restaurant on-site. The Aerotel hotel is connected to Terminal 3 and is within walking distance of Terminal 2. Aerotel offers hourly booking with a minimum stay of one hour.

  • What is the cheapest flight from London Heathrow Airport to Seattle?

    In the last 5 days, the lowest price for a flight from London Heathrow Airport to Seattle was £413 for a one-way ticket and £448 for a return.

  • Which airlines offer Wi-Fi service onboard planes from London Heathrow Airport to Seattle?

    KLM, Air France, Virgin Atlantic, and Delta offer inflight Wi-Fi service on the London Heathrow Airport to Seattle flight route.

  • Which aircraft models fly most regularly from London Heathrow Airport to Seattle?

    The Boeing 787-9 Dreamliner is the aircraft model that flies most regularly on the London Heathrow Airport to Seattle flight route.

  • Which airline alliances offer flights from London Heathrow Airport to Seattle?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between London Heathrow Airport and Seattle, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from London Heathrow Airport to Seattle?

    There are direct flights from London Heathrow Airport to Seattle on a daily basis.

  • Which is the best airline for flights from London to Seattle, Alaska Airlines or KLM?

    The two airlines most popular with KAYAK users for flights from London to Seattle are Alaska Airlines and KLM. With an average price for the route of £597 and an overall rating of 7.9, Alaska Airlines is the most popular choice. KLM is also a great choice for the route, with an average price of £615 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Heathrow Airport to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from London Heathrow Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Seattle with an airline and back to London Heathrow Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London Heathrow Airport to Seattle

  • Looking for a cheap flight from Seattle to London Heathrow Airport? 25% of our users found flights on this route for £413 or less one-way and £510 or less round-trip.
  • Travelling with children at London Heathrow Airport (LHR)? Kids aged nine and under can visit Stay & Play areas available in each terminal. Open between 6:00 and 21:00, these are soft play areas that also offer colouring-in and activity sheets.
  • Seattle Tacoma Airport (SEA) has the FlySEA app which provides information and live updates on ground transport including public transport, taxis and courtesy shuttles. It also provides up-to-date information on flights, so anyone picking you up from the airport can check to see if your flight is delayed.
  • Heathrow Airport has partnered with the 'Grab' app to let you pre-order food and drink from your phone and collect it from one of the dedicated checkpoints in the terminal.
  • Heathrow Airport has multi-faith prayer rooms in each terminal, after security. You can also visit St. George's Chapel, located just outside the airport.
  • If you've organised for someone to pick you up from Seattle Airport, they can park in the Cell Phone Car Park for free for up to 20min. Let them know when you're ready to leave and they will be able to pick you up from outside Baggage Claim.

Prefer to fly direct from London Heathrow Airport to Seattle?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from London Heathrow to Seattle/Tacoma Intl.
Find which airlines fly direct from London Heathrow Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Direct departures

London Heathrow to Seattle/Tacoma Intl

Monday

Alaska Airlines,British Airways,Delta, +1 more

Alaska Airlines,British Airways, +2 more

Tuesday

Alaska Airlines,British Airways,Delta, +1 more

Alaska Airlines,British Airways, +2 more

Wednesday

Alaska Airlines,British Airways,Delta, +1 more

Alaska Airlines,British Airways, +2 more

Thursday

Alaska Airlines,British Airways,Delta, +1 more

Alaska Airlines,British Airways, +2 more

Friday

Alaska Airlines,British Airways,Delta, +1 more

Alaska Airlines,British Airways, +2 more

Saturday

Alaska Airlines,British Airways,Delta, +1 more

Alaska Airlines,British Airways, +2 more

Sunday

Alaska Airlines,British Airways,Delta, +1 more

Alaska Airlines,British Airways, +2 more

See more direct flights

Direct returns

Seattle/Tacoma Intl to London Heathrow

Monday

Alaska Airlines,British Airways,Delta, +1 more

Alaska Airlines,British Airways, +2 more

Tuesday

Alaska Airlines,British Airways,Delta, +1 more

Alaska Airlines,British Airways, +2 more

Wednesday

Alaska Airlines,British Airways,Delta, +1 more

Alaska Airlines,British Airways, +2 more

Thursday

Alaska Airlines,British Airways,Delta, +1 more

Alaska Airlines,British Airways, +2 more

Friday

Alaska Airlines,British Airways,Delta, +1 more

Alaska Airlines,British Airways, +2 more

Saturday

Alaska Airlines,British Airways,Delta, +1 more

Alaska Airlines,British Airways, +2 more

Sunday

Alaska Airlines,British Airways,Delta, +1 more

Alaska Airlines,British Airways, +2 more

See more direct flights

Reviews of the top 5 airlines flying from Heathrow to Seattle

 
See real verified KAYAK customer reviews for airlines flying from London to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Heathrow to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12695 reviews
8.1Boarding
8.5Crew
7.1Food
7.0Entertainment
7.8Comfort
Airline reviews

The plane was very full, and the seats are not very spacious. I was in the middle seat, so it was not super comfortable. I didn't have any experience with the entertainment on board. And food was a Biscoff. Which I realize is just how we do it now, but I definitely miss the days when you could get a breakfast included.

8.0 ExcellentAnonymous, Jul 2026
CVG - SEA
Read more Alaska Airlines reviews

The plane was very full, and the seats are not very spacious. I was in the middle seat, so it was not super comfortable. I didn't have any experience with the entertainment on board. And food was a Biscoff. Which I realize is just how we do it now, but I definitely miss the days when you could get a breakfast included.

I always have flown Alaska Airlines because I never had an issues. Their customers service is incredible and an amazing communication.

Someone had peed in my seat in the flight before hand. We were rushing to board and fly because our flight was delayed due to a medical emergency on the flight prior in our airplane. My seatbelt was soaked. My seat was dry, but the floor was also wet. It was strange. It smelled awful! I had to be moved and my kids had to sit away from me.

My main issue is that I paid approximately CAD 200 to select four seats for the first flight. However, when I arrived at the check-in counter, I was told that the seats had not been assigned, and my family was relocated to the last row of the plane. I was traveling with two young children, ages two and six, which made the situation especially frustrating. I paid for a service that I did not receive, yet Alaska Airlines did not offer any refund or reasonable solution. I am extremely disappointed with how this was handled and will not fly with Alaska Airlines again.

Had nothing to do with alaska just the passenger next to me on the first flight needed a second seat to fit. He was a big boy who couldn't stay in his own space.

Everything was great. Due to an accident on the Glen Hwy attendants could not make it to the airport. A delay while new crew was located

I liked the free wifi on my SEA to PDX leg. I would have liked it on my return trip too.

Flight attendants were kind. Until the plane arrived and had a slow taxi. I was on the tail end of the plane and informed the attendants I had a connecting flight. They didn't do anything to help me get off in a more timely manner. Nor did they contact my connecting flight to let them know I was on my way. By the time it was our rows turn my connecting flight across the terminal D gate to C gate was already boarding. I had to run the whole way through the terminal and hope I caught a train inntime. They were calling my name last call by the time arrived at the gate. Then my connecting flight ticket would not work and a new ticket had to be issued requiring presenting my ID again

Left one of our suitcases behind. SUPER ANNOYING since I’m traveling solo with a lap infant 😡

All was well from boarding to landing . I would travel on Alaska Airline when I can . The flight attendants were cordial and attentive

The flight was 45 mins late leaving, we sat without a/c for some of this, 2nd Meal was a slice of pizza. Movies were good.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

The flight was great, the only reason for middle scores on entertainment and food is that it was a short flight so not included (but snacks were served including alcoholic beverages free of charge). I would definitely recommend KLM.

Was trying to change a flight but told that Canadian and local klm systems do not interact so they could not access my booking. Overall I like klm a lot but if it was important to change flights I would be very frustrated.

KLM is my favourite airline. Never ever let us down.Staff are first class.

Pretty bad. Food was awful. drinks were scarce, as if drinking an extra drink would ruin the airline. attendants were not very helpful. likely Dutch "directedness" (I cannot be bothered). Crammed flight. Entertainment in very minimal dosage. Almost all old movies and series with 1-3 episodes only. Very limited number of options available. Jesus!! it seems you need to bring your own entertainment these days even of flights that are 13 hrs long!! I would and I will avoid in the future!

I travel frequently. The flight was late again... KLM should really try and be on time

The flight itself it was great nice food the crew were very nice and helpful, Checking in from Birmingham wasn't great long queues for bag dropped, And I had my hand luggage case taken away from me even though I requested to have it with me as I had breakables items. I was told I can not because of the length of the flight with no explanation at all no options was given for me to take my fragile items out of my case it was taken away with hold buggage I find the staff member who was checking me in very unpleasant !! Can we please be advise if the rules have changed about the the carry on hand luggage it will be easier to be advise on booking your tickect if we not allowed to take the hand luggage with me. Overall I had a good flight .

I requested wheel chair assistance , it was confirmed via email that inwoood get it but I didn’t get it . The last leg of my trip to Nigeria was the worst.

Boarding in NCL is really bad. I'm sure part of that is a directive from the airport that KLM can't change but part of that is due to KLM policy. NCL doesn't announce the gate of departure until 30 minutes before departure. However, when you arrive at the gate area, the gate agents file everyone into one long line and everyone boards from one line at one time. This line can stretch for 200m...easily. There is a separate line for groups 1 and 2 but you don't know it until you get to the gate area and agents don't announce/advertise it. Everyone else is grouped into one line. Are you in group 3? Doesn't matter...you board with group 5. Traveling with a child? Tough luck...you're stuck at the end of the line and board last. The last part is very annoying because none of the gates at NCL (with the exception of 1 used by Emirates) has a jetway. To board, you must leave the gate area, walk downstairs, walk onto the tarmac and walk up stairs to board the plane. Highly challenging if you're traveling with small children. That boarding process begs for a concession to allow people with children to board first because they will need extra time. But there is no such policy. Just a really horrible boarding experience all around.

Lounge was top notch h with great variety of food and drinks. Cabin crew were great. Smooth flight.

My seat 3G did not go down fully and the buttons were not working properly

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Security area in terminal 3 needs to be made much nicer. Less claustrophobic and use of glass and big ceilings wouldhelp

accomodating check in staff, friendly flight crew ( a crew member was speaking tactlessly and was overfamiliar with passengers

Seats need to be updated. Allowance needs to be made for dinner service at an alternative time

If I could fly Virgin Atlantic airlines to every place, I need to go, I would. Leaving Heathrow through the special virgin air entrance, security is completely white glove service. I love this airline. From ticketing agents to flight staff everyone tries to make it a wonderful & happy flight experience. I wish other airlines copied the positive culture of Virgin Airlines.

Premium was very comfortable. Food was delicious. I had specific diet requirement and Virgin Atlantic ensured it was provided. Onboard crew was very friendly and caring. Extremely smooth journey. I wonder how upper class experience would be. Perhaps one day, I will try upper class.

On arrival to JFK it to 3.5hrs to clear immigration, as only 3 booths open. Almost missed connection

The ticket was reserved in my name but not paid for by underpricer. Alaska airlines was unable to issue my ticket (could not connect the ticket with the PNR) due to an error with underpricer and I spent the better part of 2 hours at the ticket counter trying to rectify.

The Icelandair crew was so kind!!! Thank you for making my first trip to Paris a great one!

I am not going to fillo this out for each leg of my trip. My first review holds for the experience

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

One of the worst airlines I ever flew. Boarding is a disaster, they are always late, the planes are overly crowded. Everyone on my flight lost their connection because they were 2h late. Reykjavik is also not the best airport out there.

Flight was delayed. They did a terrible job rebooking me. Agent on the ground was useless. The partner airline who ran the plane was able to help me but Iceland air was useless

did internet check in but still had to get checked in at the counter and this was not the first time. Bummer!

Flight delayed Delay to the gate upon arrival Baggage took more than an hour so we missed our connecting!!! Terrible experience!

Crew members were thorough in checking seatbelts and whatnot which makes me feel cared for because passenger safety is a main concern.

Smooth flight. The seats were comfortable but the reclining mechanism didn't work very well. My wife's seat required the flight attendant to push the seat forward while she pushed the button. The leg support didn't want to return to its home under the seat. I ordered the diabetic meal which was full of carbs. It was low in sugar but carbs turn into sugar so was it really diabetic? Overall the flight was pleasant, long but pleasant.

The crew was very nice and pleasant. We were very reluctant to book our flight with British Airlines because we had bad experience with their flight attendants on the previous trips, they were rude and not helpful.

Adequate to good experience. Comfort was mediocre but everything else was good..

Boarding was poor. Why are first class passengers not boarded first?! Bus to the plane and then held on a packed bus because we were waiting for people on the bus before to finish boarding. Seat belt on the fist clas seat is very uncomfortable, cutting into your neck. Other than that crew, seating and food were all excellent. Entertainment, as usual - rubbish.

Had a very bad experience flying out of London. Our initial flight was cancelled without notice and the next flight had a layover of 8 extra hours. Me, my husband and my 8-year-old were already sick, and this further added to our problems. We paid extra for the seats: I was not even given our chosen seats which we paid for months before the trip. We were shoved into the available seats which were middle ones in the back (we had paid for front window, aisle, aisle). The seats were so uncomfortable and getting out of middle seats every so often (with a sick child) was a task. We had initially chosen British Airways because of the short layover, however, that went out of the window. Although unexpected things happen all the time and I understand customers have to adjust for the unplanned, however, how the airlines react and make the passengers comfortable during that time is the real test. We were not given any compensation for food or any arrangement to stay comfortable during that time. In fact, our paid seats were taken away as well.

Crew very helpful and friendly. Food is so so. Main meal is not always the best. Did have a choice of a snack part way which was either a cookie, corn snack, or similar. Second kind of meal was basically like a pizza pastry that really wasn’t a favorite but probably a European snack? Screens and selections of movies, tv and such were good. No WI-Fi unless you buy so no free texting or such on the long flight but I think that might be any overseas flight.

Please make sure the number of seats matches the number of overhead bins and passengers don't carry on more than one bag.

British airways keeps canceling our flights. I won’t be booking any future flights with them

Flight to Seattle was fine. We were delayed getting into our gate. The connection time was short and they make you go through security again which was slow.

Everything you need to know for your flight from Heathrow to Seattle

Information on your arrival and departure airports