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LHR - SEA

£264 Find cheap flights from London Heathrow Airport 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 Heathrow to Seattle departing on 6/6. 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
0 bags
Sun 26/5
Sun 2/6

Search 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.
In the last 7 days, travellers have searched 44,738,066 times on KAYAK, and here's why:

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Cheap flight deals from Heathrow to Seattle (LHR-SEA)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip 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 and deals for you by selecting your travel dates.
Choose your dates
09:00 - 22:27LHR-SEA
21h 27m2 stops
07:40 - 06:30SEA-LHR
14h 50m1 stop
Tue, 14 May - Tue, 4 Jun
16:50 - 19:20LHR-SEA
10h 30mdirect
21:10 - 14:50SEA-LHR
9h 40mdirect
£511Virgin Atlantic
Find Deal
Mon, 13 May - Mon, 3 Jun
21:25 - 20:35LHR-SEA
31h 10m1 stop
18:55 - 20:20SEA-LHR
17h 25m1 stop
£514Icelandair
Find Deal
Thu, 9 May - Thu, 16 May
13:05 - 20:35LHR-SEA
15h 30m1 stop
15:50 - 11:55SEA-LHR
12h 05m1 stop
£516Icelandair
Find Deal
Wed, 15 May - Tue, 28 May
11:45 - 16:40LHR-SEA
12h 55m1 stop
13:30 - 10:00SEA-LHR
12h 30m1 stop
£527KLM
Find Deal
Wed, 8 May - Wed, 10 Jul
09:50 - 11:35LHR-SEA
9h 45mdirect
07:00 - 09:00SEA-LHR
18h 00m1 stop
£531Finnair
Find Deal
Mon, 13 May - Fri, 17 May
09:50 - 11:35LHR-SEA
9h 45mdirect
23:59 - 22:10SEA-LHR
14h 11m1 stop
£532Finnair
Find Deal
Fri, 3 May - Sun, 12 May
10:55 - 16:40LHR-SEA
13h 45m1 stop
21:10 - 14:50SEA-LHR
9h 40mdirect
£547KLM
Find Deal
Tue, 2 Jul - Wed, 2 Oct
12:40 - 23:05LHR-SEA
42h 25m2 stops
07:17 - 08:00SEA-LHR
40h 43m2 stops
£587British Airways
Find Deal
Sun, 12 May - Mon, 3 Jun
06:50 - 21:04LHR-SEA
22h 14m2 stops
07:06 - 21:30SEA-LHR
30h 24m2 stops
£603British Airways
Find Deal
Mon, 3 Jun - Tue, 18 Jun

Flights from Heathrow to Seattle - Travel Insights & Trends

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.

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

The average price of all flights from London Heathrow Airport to Seattle clicked on KAYAK for each day over the last 12 months.
When flying from London Heathrow Airport to Seattle, you should consider leaving on a Wednesday and avoid Sundays if you are looking for the best rates. For your return to London Heathrow Airport, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

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 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 February, where tickets cost £450 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is £679 and £649 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for 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 month.
To get a below average price on the flight from London Heathrow Airport to Seattle, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 74 days before departure.

Which airlines provide the cheapest flights from London Heathrow Airport to Seattle?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Icelandair (£375) and WestJet (£382). The cheapest round-trip tickets were found on Virgin Atlantic (£511) and Icelandair (£514).

Which airlines fly most frequently between London Heathrow Airport and Seattle?

British Airways connects London Heathrow Airport to Seattle with up to 2 flights per day. Delta also offers 1 flight per day, while Virgin Atlantic follows with 1 flight per day.

Which airlines fly direct between London Heathrow Airport and Seattle?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from London Heathrow Airport to Seattle.
There are 3 airlines that fly direct from London Heathrow Airport to Seattle. They are: British Airways, Delta and Virgin Atlantic. The cheapest price of all airlines flying this route was found with Delta at £266 for a one-way flight. On average, the best prices for this route can be found at Virgin Atlantic.

How many flights are there between London Heathrow Airport and Seattle per day?

Each day, there are between 4 and 7 nonstop flights that take off from London Heathrow Airport and land in Seattle, with an average flight time of 10h 01m. The most common departure time is 15:00 and most flights take off in the afternoon. Each week, there are 40 flights. The most frequent day of departure is Saturday, when 18% of all weekly flights depart. The fewest flights depart on a Tuesday.

Which cabin class options are there for flights between London Heathrow Airport and Seattle?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from London Heathrow Airport to Seattle take?

Direct flights from London Heathrow Airport generally make it to Seattle in 9h 45m. The flying distance between the two cities is 4,783 miles.

What’s the earliest departure time from London Heathrow Airport to Seattle?

Early birds can take the earliest flight from London Heathrow Airport at 09:45 and will be landing in Seattle at 11:30.

What’s the latest departure time from London Heathrow Airport to Seattle?

If you prefer to fly at night, the latest flight from London Heathrow Airport to Seattle jets off at 16:50 and lands at 19:20.

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

Low season

February

High season

August

Cheapest flight

£264
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly (24% 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 3 days, the lowest price for a flight from London Heathrow Airport to Seattle was £330 for a one-way ticket and £638 for a return.

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

    KLM, Delta, Air France, and Virgin Atlantic 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?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between London Heathrow Airport and Seattle, with SkyTeam 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, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from London to Seattle are Delta and KLM. With an average price for the route of £584 and an overall rating of 8.0, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of £613 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.

See more FAQs

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 £591 or less one-way and £623 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.
See more tips

Prefer to fly direct from London Heathrow Airport to Seattle?

Find which airlines fly direct from Heathrow to Seattle/Tacoma Intl, which days they fly and book direct flights.

Direct departures

London Heathrow to Seattle/Tacoma Intl

Monday

Aer Lingus, Aeromexico, Air France, +8 more

Aer Lingus, Aeromexico, +9 more

Tuesday

Aer Lingus, Aeromexico, Air France, +8 more

Aer Lingus, Aeromexico, +9 more

Wednesday

Aer Lingus, Aeromexico, Air France, +8 more

Aer Lingus, Aeromexico, +9 more

Thursday

Aer Lingus, Aeromexico, Air France, +8 more

Aer Lingus, Aeromexico, +9 more

Friday

Aer Lingus, Aeromexico, Air France, +8 more

Aer Lingus, Aeromexico, +9 more

Saturday

Aer Lingus, Aeromexico, Air France, +8 more

Aer Lingus, Aeromexico, +9 more

Sunday

Aer Lingus, Aeromexico, Air France, +8 more

Aer Lingus, Aeromexico, +9 more

See more direct flights

Direct returns

Seattle/Tacoma Intl to London Heathrow

Monday

Aer Lingus, Aeromexico, Air France, +8 more

Aer Lingus, Aeromexico, +9 more

Tuesday

Aer Lingus, Aeromexico, Air France, +8 more

Aer Lingus, Aeromexico, +9 more

Wednesday

Aer Lingus, Aeromexico, Air France, +8 more

Aer Lingus, Aeromexico, +9 more

Thursday

Aer Lingus, Aeromexico, Air France, +8 more

Aer Lingus, Aeromexico, +9 more

Friday

Aer Lingus, Aeromexico, Air France, +8 more

Aer Lingus, Aeromexico, +9 more

Saturday

Aer Lingus, Aeromexico, Air France, +8 more

Aer Lingus, Aeromexico, +9 more

Sunday

Aer Lingus, Aeromexico, Air France, +8 more

Aer Lingus, Aeromexico, +9 more

See more direct flights
See more direct flights

Top 5 airlines serving 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.
7.8
KLMOverall score based on 1626 reviews
7.6comfort
7.3food
7.2entertainment
7.8boarding
8.4crew
Airline reviews

We left one hour late because of technical difficulties. The economy comfort seats are great for the price. The crew was mediocre, they do not provide a pleasant experience, they just deliver food and drinks and give orders, not very amicable, no service and hospitality focus.

8.0 ExcellentAnonymous, Feb 2024AMS - ATL
Read more about KLM reviews

We left one hour late because of technical difficulties. The economy comfort seats are great for the price. The crew was mediocre, they do not provide a pleasant experience, they just deliver food and drinks and give orders, not very amicable, no service and hospitality focus.

I thought KLM was the best airline but the Lima - Amsterdam was 1 hours late, the Brussels - Amsterdam was 2.30 hours late and the Amsterdam - Lima was 30 minutes late

Overall a good experience. We were disappointed when we had to check our carry on due to the plane being full. KLM hadn’t notified us and we had valuable items in the carry on but they still made us check it. Some of the food was great and some was mediocre. Crew is really kind and funny.

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 .

The plane was clean and the staff was friendly. Food and drinks as expected on international flights. The entertainment system was old style, with a pullout controller, and selections not as extensive as on other flights.

The food quality is poor. The staff are very friendly and accommodating. The entertainment program was limited. I experienced a delay of 30 minutes due to two issues. Passenger luggage had to be removed and there was a technical issue with the stairs not detaching from the aircraft. The pilot managed to compensate and we arrived only 15 minutes later. The luggage at Dubai airport was very slow. I waited over an hour.

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.

one of my bags was drenched with fish smelling water and all my new clothes bought at dublin and the 23kg checked in bag were all gone waste with very pungent fish smell and also having stains

At the transit could be less time not like 12 hour 6 hours the mix should be 4 hour, thanks

All good- I love BA and the professionalism of the crew and pilots.

Great flight- smooth, nice crew, nice clean aircraft, departed a little late but arrived 10 early.

It was listed on my ticket as Finnair but there was no indication that the flight was Finnair. In fact the number was even different. There were no employees there until exactly 2 hours before so we had to wait in line at Iberia and hope

Sorting on line would have been appreciated Onward information on flights missed No ability to get seating arranged before we got to gate Very unfriendly at gate

The flight was Finnair but there was no indications anywhere that the checkin was for Finnair also. There was no one to ask. I think at a minimum they should list the code shares so people don’t stand in the wrong line for an hour.

I booked the flight with Finnair, which made the arrangements for downloading a boarding pass unnecessarily complicated. I wouldn't do that again. Instead I'd book direct with AA.

Flight ok, but me and other two passengers didn’t have connection with the entertainment in our seats. So, no movies, no games, no music… for 9 hours. The crew just told us that there’s nothing they can do but I noticed during the flight that there were empty seats, so they could have offered to us to change seats. Customer service could be better.

Had a nice flight to London on BA will fly with them again in the future

Finnair cancelled my flight 12 hours prior to leaving for Helsinki. They stated there were mechanical problems. I had to scurry around to find a new flight that would meet my needs for arrival in Helsinki. Luckily I was able to find alternate transportation through Lufthansa/United.

I’m very disappointed, to fly into an airplane for 10 straight hours, and not having a TV even though when I put the ticket I was told that I will have entertainment for the TV. Very disappointed.

Cabin crew on our flight showed lack of any customer service gruff and acting annoyed if you asked anything and I mean anything Example a man on the seat over dropped his beer on my husbands blanket We asked if we could switch out blankets cabin crew Said. No we don’t have any extras OK well can you take the wet one Cabin crew looked disgusted and annoyed Took it no OK or yes just a growl

Quick flight. But cabin crew were very noisy and talking too much, especially when we were seated at the back of the plane trying to sleep through the night .

My ticket was for Premium Economy and all the seats were taken, I was placed in Economy class and I’m looking for a refund.

Unfortunately delayed 2 hrs due to faulty tyre.. which had to be changed, but better safe than sorry.

The delay was an issue. Other than that. Every thing good

Staff didn’t check cabin well for landing seemed more interested in chatting to each other. Food was poor and differed from pre order.

We were in the last group to be called to the flight - which was 30 minutes late taking off. While we were lucky enough to have been given bulkhead seats (due to a medical condition I’d told them about beforehand) the seats weren’t particularly comfortable. A crying baby for the whole trip made things worse, so the crew managed very well with coping. The final thing I’d say was that there wasn’t enough food served during the flight.

Very good. Glad we had Premium for the flight out.

We flew Upper Class from London to The Turks and Caicos. Check in was amazing. Our ldriver too us directly to a special entrance to terminal 3. It took 10 minutes to check in and clear customs. Amazing! The VA lounge is large and comfortable. Boarding the flight was easy and without a wait. The crew was excellent. But the seats were awful, strange and uncomfortable. Having a comfortable flat bed seat is the reason we pays 1000s extra. The VA 787 uses a reverse herringbone configuration. Look it up. You have your back to the window and are facing the aisle with no privacy. Turning the seat into a bed requires assistance from the crew so not very spontaneous. . The food was ok. A bit tasteless and meager portions. Had to pay for WiFi. I believe VA has other configuration on their dream airbus flights. Lots of stuff about all this on YouTube where you can see what I have been describing. I can not recommend taking VA on a long flight with these seats.

From the start everything was perfectly fine. First meal was fantastic. Breakfast needs a lot of work and food was overcooked and not very nice for breakfast. Staff were fantastic friendly nice they came round and check we need anything else to eat or drink

So Iceland Air is one step above Spirit Airlines. They do not feed you unless you pay for it or are in Saga Class. So, bring your food. They have a drink service, but it's in a large Dixie cup. Ask for the can, that is the only way you'll get a real drink. Also, we missed our connecting flight so they put us up in a flea-bag motel. Don't get me wrong, the staff was nice and friendly, however, there was no shower gel or shampoo in the hotel. We have to go to the corner store to pick some up. The room was not in great shape. Holes in the bathroom, a badly repaired ceiling in the room. The window was warn out. So, you get the just of how bad it was.

Paying $75 for my bag is disgusting. Got off ground late so I missed my connections. Kept us waiting for passengers in the cold. Will not use them again.

Food and staff were excellent. Seats on Saga (business class) are comparable to domestic first class of US Airlines, regarding space and recline. Entertainment options had little international component.

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

There is no food without paying $. Only soft drinks are included in your fare.

Some drinks and basic snack will be good. Water should be served at least once an hour. Blankets for folks who might be cold.

Pros: "Flight was relatively empty. Professional crew, comfortable seats"
Cons: "I think they skipped me with food service. Checking up on passengers who may have been sleeping would be nice. Headphones need to be purchased. Limited entertainment options."
Cons: "Communication about international COVID requirements before the day of departure."
Pros: "My seat cushion was out of alignment so not great. But I like the two side seat configuration."
Cons: "Boarding is a zoo. Board by row. It’s faster."
Pros: "Icelandair crew were very hospitable and accompodating"
Cons: "I have never sat in such a narrow seat. Literally could not put my hand down the side to pull out my seat belt. Two days later I still have sores from where the side of the seats hit my hips. Did not even provide complimentary peanuts."

The crew was very attentive and kept busy serving a variety of treats!

Offered vegetable curry when it was actually tofu which I don’t care for.

The flight was good the crew excellent…but take off delayed three hours!!!

Both mine and my husband's chairs were broken. Also it took 2 hours to get our bags after our flight which was wild.

perhaps eye contact with the cabin crew, instead of abruptness and an impatience to serve.

Not enough trash pickups throughout the flight. Everything else was great.

Overall good, the gluten free food is very hit/miss though and you must tell them you have an allergy days in advance.

All was good. The headphones they supply are of poor quality. The food is good but too much dairy.

Seating space was crowded and I am a very small woman.

I sat in the last row of seats. On an 8 hour flight they allowed folks to stand and talk and drink in the back area near the toilets the whole time. They were at times loud and in the way. It was a little annoying. The crew on this trip were pretty mediocre and the plane was littered with trash when we disembarked.

Book cheap flights from London to Seattle

Cheapest flights to Seattle from London found in 2024

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from London to Seattle found on KAYAK in the last 72 hours.
6/6Thu
2 stops
34h 30mLHR-SEA
£264
31/5Fri
3 stops
33h 00mLHR-SEA
£271
18/6Tue
1 stopIcelandair
21h 55mLHR-SEA
£375
7/6Fri
1 stopIcelandair
21h 55mLHR-SEA
£386
17/9Tue
directIberia
9h 45mLHR-SEA
£531
18/6Tue
directIberia
9h 45mLHR-SEA
£560
6/5Mon
directBritish Airways
9h 45mLHR-SEA
£563
15/10Tue
directBritish Airways
9h 45mLHR-SEA
£566
15/5Wed
directFinnair
9h 45mLHR-SEA
£567
20/5Mon
1 stopFinnair
17h 35mLHR-SEA
£581

Search by stops

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Last minute flights from Heathrow to Seattle

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from London to Seattle that are departing in the next 10 days.
1/5Wed
directBritish Airways
9h 45mLHR-SEA
8/5Wed
multi-stopBritish Airways
14h 11mSEA-LHR
£502
1/5Wed
multi-stopAmerican Airlines
23h 09mLHR-SEA
8/5Wed
multi-stopAmerican Airlines
16h 01mSEA-LHR
£503
27/4Sat
multi-stopFinnair
16h 15mLHR-SEA
2/6Sun
multi-stopFinnair
35h 15mSEA-LHR
£637
29/4Mon
multi-stopKLM
14h 45mLHR-SEA
5/5Sun
directKLM
9h 40mSEA-LHR
£671
29/4Mon
multi-stopKLM
14h 45mLHR-SEA
5/5Sun
directKLM
9h 40mSEA-LHR
£673
30/4Tue
multi-stopIcelandair
12h 35mLHR-SEA
7/5Tue
multi-stopIcelandair
20h 30mSEA-LHR
£720
27/4Sat
multi-stopIcelandair
28h 15mLHR-SEA
31/10Thu
multi-stopIcelandair
12h 20mSEA-LHR
£760
27/4Sat
multi-stopFinnair
19h 22mLHR-SEA
2/6Sun
directFinnair
9h 20mSEA-LHR
£772
27/4Sat
directVirgin Atlantic
9h 55mLHR-SEA
2/6Sun
directVirgin Atlantic
9h 40mSEA-LHR
£1,002
27/4Sat
directVirgin Atlantic
9h 55mLHR-SEA
1/5Wed
directVirgin Atlantic
9h 40mSEA-LHR
£3,508

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London Heathrow Airport - Seattle Flights

Departure:

London Heathrow Airport (LHR)United Kingdom

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - London Heathrow Airport

Cabin classes:

£4,194
£2,091
£1,019
£523