LON - SEA

£381 Find Cheap Flights from London to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Seattle departing on 26/6. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Seattle.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Seattle.
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Everything you should know

Cheapest return fare
£504
Typical prices: £641-£486
Icelandair
Thu 14/5Wed 27/5
LHR - SEA • 1 stop
Cheapest direct flights
£504
Typical prices: £798-£588
British Airways
Fri 24/7Sat 8/8
LHR - SEA • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Finnair's A350 offers a more comfortable long-haul flight.
Use the Link light rail for a cost-effective trip to Seattle.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from £504 (return)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
You can fly direct with Alaska Airlines, British Airways, and others. Average duration is 10h 04m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest
Most popular
Insights
Insights
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Avoid delays
Most punctual • 95% on-time
Best time • Fewest delays
Insights
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Top stopover airports
Cheapest • Avg £431 (return)
Shortest trip • 12h 45m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 19% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals

Cheap Flights from London to Seattle (LON-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London 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 London to Seattle

Thu, 14 May - Wed, 27 May
Icelandair Logo
13:05 - 17:55
LHR
-
SEA
12h 50m
1 stop
Icelandair Logo
19:00 - 20:20
SEA
-
LHR
17h 20m
1 stop
£504Icelandair
Thu, 30 Apr - Tue, 5 May
Icelandair Logo
13:00 - 20:40
LGW
-
SEA
15h 40m
1 stop
Icelandair Logo
15:40 - 14:40
SEA
-
LGW
15h 00m
1 stop
£505Icelandair
Fri, 24 Jul - Sun, 9 Aug
British Airways Logo
16:30 - 18:25
LHR
-
SEA
9h 55mdirect
British Airways Logo
20:20 - 13:45
SEA
-
LHR
9h 25mdirect
£506British Airways
Wed, 1 Jul - Fri, 10 Jul
Virgin Atlantic Logo
17:45 - 20:03
LHR
-
SEA
10h 18mdirect
Virgin Atlantic Logo
07:15 - 06:20
SEA
-
LHR
15h 05m
1 stop
£511Virgin Atlantic
Fri, 1 May - Wed, 6 May
British Airways Logo
09:50 - 11:35
LHR
-
SEA
9h 45mdirect
British Airways Logo
20:20 - 13:45
SEA
-
LHR
9h 25mdirect
£515British Airways
Wed, 10 Jun - Sun, 21 Jun
Virgin Atlantic Logo
10:00 - 16:24
LCY
-
SEA
14h 24m
1 stop
Virgin Atlantic Logo
13:55 - 17:20
SEA
-
LCY
19h 25m
1 stop
£537Virgin Atlantic
Thu, 18 Jun - Tue, 30 Jun
KLM Logo
09:20 - 16:24
LCY
-
SEA
15h 04m
1 stop
KLM Logo
13:55 - 09:30
SEA
-
LCY
11h 35m
1 stop
£544KLM
Thu, 25 Jun - Sun, 12 Jul
Delta Logo
10:00 - 16:24
LCY
-
SEA
14h 24m
1 stop
Delta Logo
13:45 - 09:30
SEA
-
LCY
11h 45m
1 stop
£546Delta
Fri, 19 Jun - Wed, 8 Jul
KLM Logo
10:00 - 16:24
LCY
-
SEA
14h 24m
1 stop
KLM Logo
13:45 - 09:30
SEA
-
LCY
11h 45m
1 stop
£548KLM
Wed, 24 Jun - Sun, 12 Jul
Delta Logo
08:25 - 16:24
LCY
-
SEA
15h 59m
1 stop
Delta Logo
13:45 - 09:30
SEA
-
LCY
11h 45m
1 stop
£551Delta
Booking Insights

KAYAK’s insights & trends for London to Seattle flights

Get data-powered insights and trends into flights from London 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 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 to Seattle departing in May.

What is the cheapest London to Seattle flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from London to Seattle costs £538 on the route between London Heathrow Airport (LHR) and Seattle (SEA). It is also the most popular route.

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

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London 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 to Seattle is February, where tickets cost £440 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is £655 and £621 respectively.

Can I save money by flying with a stopover from London 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 £544, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from London 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 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 to Seattle, you should book around 4 weeks before departure, which saves you about 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Expert advice

Expert advice for your flight from London 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.

Blane Bachelor

Blane Bachelor

Expert on KLM

Blane Bachelor is a journalist and editor specialising in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favourite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history.

Gabriel Leigh

Gabriel Leigh

Expert on Finnair

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Stefanie Waldek

Stefanie Waldek

Expert on Delta

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or out at sea, likely en route to Antarctica or the Arctic.

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 to Seattle

Low seasonFebruary
Cheapest flight£381
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly (20% more expensive on average)
Flight from London Gatwick Airport to Seattle

When to book flights from London to Seattle

Are your dates flexible? Find out the best times to travel from London 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 flights from London to Seattle

  • Are there any passenger lounges at Stansted Airport?

    Those flying from London’s Stansted Airport (STN) can relax in style at the Escape Lounge. You can find this lounge in the main departure area once you have passed through security and the duty-free area. You can pre-book your entry into the lounge for £25 per person, however infants younger than 2 years can enter free of charge. The lounge is open from 4:00 – 22:30 daily.

  • How do I travel from Seattle Airport into the city?

    If you would like to use public transport to travel into the city from Seattle Airport, you can catch the Red Line of the Link Light Rail train system from the airport station to Pioneer Square Station in downtown Seattle. The trip takes about 40min. There are also a number of bus services that can take you throughout the greater Seattle area, including the 574 line to Tacoma, taking approximately 30min.

  • How do I get to Gatwick Airport?

    The fastest way to get to London’s Gatwick Airport (LGW) using public transport from Central London is to take the Gatwick Express train. You can catch this train from Victoria Station every day from 5:00 – midnight. This train runs every 15min, stopping at Gatwick Airport’s South Terminal and taking 30min. Alternatively, the Thameslink also runs to Gatwick Airport in 30min from London Bridge Station every 20min.

  • What restaurants are there at Heathrow Airport?

    If you have time before you fly from Heathrow Airport (LHR), you can enjoy a wide range of restaurants and dining options throughout the airport, depending on which terminal you are flying from. If you’re looking for a sit-down meal, you can find the Gorgeous Kitchen in Terminal 2, The Curator or The Cavier House & Prunier in Terminal 3, The Prince of Wales or Comptoir Libanais in Terminal 4 or the Crown Rivers Bar & Food at Terminal 5.

  • How can I travel First Class from London to Seattle?

    As the flight is relatively long from London to Seattle Airport, you might want to enhance your comfort by staying in a more exclusive cabin. For example, American Airlines provide a First Class cabin offering on the plane, so you can enjoy ultimate comfort in a fully reclining seat.

  • Where can I hire a car at Seattle Airport?

    Upon landing at Seattle Airport, you will be able to find a range of car hire agencies, so you can have great flexibility with your journey. For example, you can find agencies such as Europcar conveniently located in the airport arrivals hall. Alternatively, you can get a free shuttle from outside the terminal to companies such as Avis.

  • How can I lower my carbon emissions by taking a specific flight from London to Seattle?

    You can use the KAYAK search filter to find airlines that emit less carbon dioxide during the flight. For example, KLM completes the journey emitting about 46% less CO2 than the industry standard.

  • Which airlines provide internet on flights from London to Seattle Airport?

    As the flight is relatively long, you might want to stay online during the flight. You can use KAYAK to search for airlines, such as British Airways and KLM, which provide Wi-Fi to passengers. This means you can stay connected throughout your journey.

  • What is the cheapest flight from London to Seattle?

    In the last 3 days, the lowest price for a flight from London to Seattle was £381 for a one-way ticket and £504 for a return.

  • Which airports will I be using when flying from London to Seattle?

    When flying out of London you will be using one of these airports: London City, London Gatwick, London Heathrow, London Luton, London Southend, or London Stansted. You will be landing at Seattle/Tacoma Intl.

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

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

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

    The Boeing 787-10 Dreamliner is the aircraft model that flies most regularly on the London to Seattle flight route.

  • Which airline alliances offer flights from London to Seattle?

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

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

    There are direct flights from London 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 £648 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 £568 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from London 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 to Seattle.

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

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

  • What is the Hacker Fare option on flights from London 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 with another airline.

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

  • Looking for a cheap flight from London to Seattle? 25% of our users found flights on this route for £525 or less one-way and £623 or less round-trip.
  • Seattle-Tacoma Airport (SEA) is located approximately 20min from downtown Seattle and serves nearby cities in northern Washington state, including Olympia (1h 15min away), Everett (1h 15min away) and Tacoma (45min away).
  • Before your flight from London to Seattle, you will need to register your travel plans. The UK has a visa waiver agreement with the USA and British Passport holders can apply online for the Electronic System for Travel Authorization (ESTA). This grants you entry into the USA and travel for up to 90 days.
  • If you’re not in Seattle long and would like to explore the city without all of your luggage, you can store your bags at Smarte Carte in the baggage claim area in the main terminal of Seattle Airport. Smarte Carte also has copying and postal services and travel convenience items for sale.
  • Those who are a little lost and need some help or advice on airport facilities can find airport volunteers throughout Seattle Airport. The volunteers can point the way to things like restaurants and stores but do not escort passengers to connecting flights.
  • If you’re looking for things to do at Seattle Airport after your flight from London to Seattle, you can go on an art walk through the terminal. To find out information on the individual pieces of art, you can download the STQRY app by following links to the airport website.
  • If you get to Seattle Airport (SEA) late at night, you can stay at an airport hotel before you continue your journey. For example, Crowne Plaza Seattle Airport is only a short walk from the terminal building and is open 24/7, so you can arrive whenever you need.
  • Should your flight be an early departure, staying at an airport hotel ensures you aren’t late for check-in. For example, Aerotel at London Heathrow Airport (LHR) and Courtyard by Marriott at Gatwick Airport (LGW) are two popular hotels. They provide wake-up calls too, so you will get to the check-in desk in good time.

Prefer to fly direct from London to Seattle?

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

Direct departures

London 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

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 London 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 London 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.
7.8
KLMOverall score based on 1502 reviews
8.4Crew
7.1Entertainment
7.8Boarding
7.7Comfort
7.3Food
Airline reviews

There were no charge points for phones on the economy seats. The seats were comfortable overall. Food was okay.. flight was on time

6.0 Goodpuravi, Apr 2026
MLA - AMS
Read more KLM reviews

There were no charge points for phones on the economy seats. The seats were comfortable overall. Food was okay.. flight was on time

It was really nice experience by flying this klm flight.I personally recommend everyone to please try this klm flight

It was really nice journey i personally recommend klm flight

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

Flight was on time, staff are friendly and helpful onboard.

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Seating and zone. The minor I went with didn’t even seat close to me

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

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

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

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

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

Middle seats SUCK!!!! I paid more money than I should have because of your terrible site Kayak.com. I'll try to use your competitors going forward. I am so disappointed you would play off business class.com as business class seats

The boarding was efficient. The entertainment system was a bit unstable but Air France has a good selection of movies.

They lost my bag and I still haven’t received it yet

They lost my bag and I still have not received it

Communication on the delay, rebooking and how to get a hotel was poor. Mails, airport check-in and transfer desk said different things.

Not consistent with the food quality (I mean taste not freshness)

Safe and stable made me sleepy and I slept and dreamt 😂😂😂😂

Food was really mediocre for premium economy in comparison to other airlines… the crew was nowhere to be found… 14 hour flight…

I don’t like that an equipment change caused my seat to change from 23A to 44A. The boarding was also delayed. The crew were excellent, however and very attentive. The food was not bad.

Our flight crew were terrific. And they handle a difficult passenger with finesse.

I’m considering never flying with Iceland Air again. The seats in economy are torture. Now you only get water, coffee and tea for free- really? No food, not a single peanut. The passport line was insane, everyone was worried about catching their connecting flight. This was the third time I’ve barely made my connection, had to run. It can’t be that my choice is to use the bathroom (during the 50 minutes between flights) or make my flight. SO stressful! Ugh.

The most uncomfortable seat i’ve ever had on a flight

Waiting area on top of stairs before Boarding the bus wasn’t great. Took a long time to load the bus to gate.

The real reason why the flying experience with Icelandair ---was mediocre was because of not being able to enter DC airspace yesterday evening. This obviously was out of your control and do realize this is a safety issue. I did notice---that everything was being done to get us to Washington Dulles and we did arrive at Dulles SAFELY with just a 4 hour delay. Thank you!

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.

Overall satisfied and would fly with them again. They could improve the check-in efficiency at BOS, we got backed up because it seemed there were passengers requiring much more time for check in.

The customer service was unbeatable from the wheelchair assist team to the flight attendants. The pilot also did an excellent job managing the turbulence.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

Again, we paid $ 328.00 for specific seats are were assigned those seats.

Airbus A350 is poorly designed for wheelchair users and reduced mobility passengers. The angle of the pods makes it awkward to transfer. I was able to but I have ab stability. It could be a real challenge for people with more severe mobility impairments. You'd think Airbus would have come up with a solution for this or thought more about us disabled folks more when designing this aircraft.

The crew has always been great on BA. They are very friendly and accommodating. I like that they have vegetarian options already in the menu. And the free wine is a nice perk.) I noticed (both directions of my trip) minor upgrades/ replacements needed on the plane itself (touch screen didn't work with touch; bathroom light didn't go on). However, this is one of my favorite airlines.

Everything was spectacular except the boarding. It was just a mob of people while all groups were called over the public address system.

The Britts are wonderful to fly with and the crew were very hospitable. Again, I really wish they had been able to retrieve my carryon bag from baggage claim before the flight so I could be in a less worrisome state of mind, but that's not on them. I completely understand. The window seats with the dimmable windows were very cool!

There was a delay for the San Francisco-London flight, but we were all informed via text and email. The staff was very friendly and nice and the food was good. I do recommend that the airline offer something without eggs or something vegan for the vegetarian meal option. A lot of Indians are lacto-vegetarian, while some could be allergic to eggs/dairy.

food options were terrible. for a 10-hour flight, there should be 2 decent meals. Also, flight attendants should come around with drinks more than just at the meals.

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.

Crew were nice, food was good. Boarding was horrendous. We were driven around the airport in a bus forced to climb a long flight of very steep stairs with no adequate handrails to board the plane . In many many years of flying to the US I have never been required to do this . There was no assistance for those needing help getting up the stairs to the plane. A fellow passenger helped me. No idea how other elderly, physically limited passengers or those with young children managed . It was a full flight with crowds trying to get up the stairs. It was an accident waiting to happen.

Horrible, the plane is just old and junky...Filthy restroom, seat was as hard as rock. The food, mystery side dish, inedible..geez..just Horrible. Never flying BA again

the service on Business class should be improved to be at par with industry leaders like Cathay Pacific and Singapore AIrlines. A lot of room for improvement.

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

Other airlines flying from London to Seattle

Flights from the other most popular airlines that fly from London to Seattle according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.