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SEA - LON

Find cheap flights from Seattle to London from £196

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to London departing on 16/10. 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
Mon 10/6
Mon 17/6

Search hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to London.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to London.
In the last 7 days, travellers have searched 43,156,178 times on KAYAK, and here's why:

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Cheap flight deals from Seattle to London (SEA-LON)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to London 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
15:50 - 11:55SEA-LHR
12h 05m1 stop
20:25 - 17:00LHR-SEA
28h 35m1 stop
£462Icelandair
Find Deal
Tue, 8 Oct - Wed, 13 Nov
15:50 - 11:55SEA-LHR
12h 05m1 stop
13:05 - 17:55LHR-SEA
12h 50m1 stop
£463Icelandair
Find Deal
Tue, 8 Oct - Tue, 22 Oct
16:30 - 09:50SEA-LHR
9h 20mdirect
06:15 - 11:20LHR-SEA
13h 05m1 stop
£485Delta
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Tue, 1 Oct - Tue, 22 Oct
16:30 - 09:50SEA-LHR
9h 20mdirect
09:55 - 16:50LHR-SEA
14h 55m1 stop
£486Delta
Find Deal
Wed, 25 Sep - Wed, 9 Oct
13:40 - 11:20SEA-LHR
13h 40m1 stop
09:00 - 17:50LHR-SEA
16h 50m1 stop
£488Virgin Atlantic
Find Deal
Tue, 1 Oct - Tue, 8 Oct
19:40 - 13:00SEA-LHR
9h 20mdirect
09:50 - 11:35LHR-SEA
9h 45mdirect
£491British Airways
Find Deal
Sun, 22 Sep - Wed, 2 Oct
15:41 - 14:25SEA-LHR
14h 44m1 stop
09:50 - 11:35LHR-SEA
9h 45mdirect
£493British Airways
Find Deal
Wed, 2 Oct - Fri, 18 Oct
13:40 - 11:20SEA-LHR
13h 40m1 stop
10:45 - 19:23LHR-SEA
16h 38m1 stop
£501Virgin Atlantic
Find Deal
Wed, 2 Oct - Fri, 11 Oct
11:15 - 10:00SEA-LGW
14h 45m1 stop
12:00 - 22:20LGW-SEA
18h 20m1 stop
£557Air France
Find Deal
Tue, 1 Oct - Tue, 15 Oct
11:15 - 10:00SEA-LGW
14h 45m1 stop
12:00 - 22:15LGW-SEA
18h 15m2 stops
£561Air France
Find Deal
Sun, 22 Sep - Wed, 2 Oct

Flights from Seattle to London - Travel Insights & Trends

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

What is the cheapest Seattle to London flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for one-way flights from Seattle to London.
Our data shows that the cheapest route for a one-way flight from Seattle to London cost £374 and was between Seattle and London Heathrow Airport. On average, the best prices are found if you fly this route. The average price for a return flight for this route is £516.

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to London, 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 Seattle to London is November, where tickets cost £555 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is £960 and £859 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to London, 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 Seattle to London, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 7 days before departure.

Which airlines provide the cheapest flights from Seattle to London?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Seattle to London found by KAYAK users in the last 72 hours was for £462 on Icelandair, followed by Iberia (£468). One-way flight deals have also been found from as low as £196 on Icelandair and from £315 on WestJet.

Which airlines fly most frequently between Seattle and London?

Seattle and London are connected by different airlines. The airlines that fly that route the most regularly are British Airways (5 flights per day), Delta (2 flights per day), and Virgin Atlantic (one flight per day).

Which airlines fly direct between Seattle and London?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Seattle to London.
There are 3 airlines that fly direct from Seattle to London. They are: British Airways, Delta and Virgin Atlantic. The cheapest price of all airlines flying this route was found with Virgin Atlantic at £509 for a one-way flight. On average, the best prices for this route can be found at British Airways.

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

Each day, there are between 7 and 9 nonstop flights that take off from Seattle and land in London, with an average flight time of 9h 24m. The most common departure time is 19:00 and most flights take off in the evening, while the most flights land at London Heathrow Airport. Each week, there are 59 flights. The most frequent day of departure is Thursday, when 15% of all weekly flights depart. The fewest flights depart on a Sunday.

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

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 3 cabin class options for the route. These are 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 Seattle to London take?

Direct flights cover the 4,790 miles separating Seattle and London in about 9h 20m.

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

Early birds can take the earliest flight from Seattle at 13:30 and will be landing in London at 06:50.

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

If you prefer to fly at night, the latest flight from Seattle to London jets off at 21:10 and lands at 14:50.

Good to know - Cheap tickets from Seattle to London

Low season

January

High season

July

Cheapest flight

£196
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly (24% more expensive on average)
Flight from Seattle to London Gatwick Airport

When to book flights from Seattle to London

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

  • Are there onsite hotels at Heathrow Airport or Gatwick Airport?

    Heathrow Airport features a number of hotels connected directly to its terminals, so visitors have a selection of airports to choose from. In Terminal 4 travelers will find the Hilton London Heathrow Airport and the capsule hotel YOTEL, while in Terminal 5 there is the Sofitel London Heathrow. Gatwick airport also has a variety of hotel options available, such as Hampton by Hilton, YOTELAIR, and Bloc Hotel.

  • Can I fly from Seattle to London non-stop?

    British Airways, Iberia, Virgin Atlantic, Finnair, and Delta Air Lines all offer direct nonstop flights from Seattle to London via Heathrow Airport. Many other airlines also offer one-stop flights to London from Seattle with final destinations varying largely between Heathrow Airport, Gatwick Airport, and London City Airport.

  • What is the quickest way from Heathrow Airport to downtown London?

    The Heathrow Express is the fastest way to get to central London from Heathrow Airport and is conveniently connected to Terminals 2, 3, and 5. There is also a direct London Underground connection via the Piccadilly Line, for those who prefer the cheaper (but slower) method of travel.

  • Should I fly to Heathrow Airport or Gatwick Airport?

    Both airports are conveniently connected via public transport to central London with travel times roughly equal. However, if your final destination is on the south or east side of London, then Gatwick is likely the better option due to its close proximity, while Heathrow is more convenient for destinations on the west and north side.

  • What is the cheapest flight from Seattle to London?

    In the last 3 days, the lowest price for a flight from Seattle to London was £245 for a one-way ticket and £579 for a return.

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

    Seattle is served by only 1 airport and there are 3 airports in London. You will leave Seattle from Seattle/Tacoma Intl and you will be arriving in London at one of these airports: London City, London Gatwick, or London Heathrow.

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

    All the following airlines offer inflight Wi-Fi service on the Seattle to London flight route: American Airlines, Air France, Delta, Lufthansa, KLM, Virgin Atlantic, United Airlines, and Finnair.

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

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

  • Which airline alliances offer flights from Seattle to London?

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Seattle to London are Delta and KLM. With an average price for the route of £845 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 £784 and an overall rating of 7.8.

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

    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 Seattle to London.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Seattle 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 Seattle to London?

    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 London with an airline and back to Seattle with another airline.

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

    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 London from Seattle 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 Seattle to London

  • Looking for a cheap flight from Seattle to London? 25% of our users found flights on this route for £443 or less one-way and £609 or less round-trip.
  • Link Light Rail and bus services connect Seattle-Tacoma International Airport to downtown Seattle quickly and efficiently. The Link is just outside the airport on the fourth floor of the adjacent parking garage and runs all the way from the airport to the University of Washington.
  • Families flying with children may want to consider visiting Seattle-Tacoma International Airport’s Playroom. It is the perfect spot to help kids burn off excess energy before their flight. The Playroom is located across from the Seattle Tap Room in the Central Terminal near the A gates.
  • There are many airports in London and travelers should keep their locations in mind when choosing which airport to fly into. London City Airport and Heathrow Airport are the most central of the airports and offer quick, easy access to the heart of London, while Gatwick Airport and London Stansted Airport are on the southside and northside of London, respectively.
  • Looking for a family-friendly activity to help pass the time prior to your flight? Why not check out a live music performance? All throughout the week, live music gigs are performed in Sea-Tac Airport’s various terminals to the enjoyment of passengers.
  • Travelers with flights from Seattle to London via Delta Air Lines may want to consider taking the chance to relax in comfort in one of Delta’s premium lounges. Delta operates two Delta Sky Clubs at Seattle-Tacoma International Airport, with one in Concourse A and the other in the airport’s Rooftop Area. There are also showers available at the Rooftop location.
See more tips

Prefer to fly direct from Seattle to London?

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

Direct departures

Seattle/Tacoma Intl to London

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

London 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
See more direct flights

Top 5 airlines serving from Seattle to London

 
See real verified KAYAK customer reviews for airlines flying from Seattle to London. 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 Seattle to London? 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.
8.0
DeltaOverall score based on 10751 reviews
8.6Crew
8.2Boarding
8.0Entertainment
7.4Food
7.9Comfort
Airline reviews

Had a broken tray in business class. Crew just shrugged it off.

2.0 MediocreShiva, Apr 2024SEA - SFO
Read more about Delta reviews

Had a broken tray in business class. Crew just shrugged it off.

Everything was great except for the seat. The backrest would not stay in the upright position.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Mi primera conexión se retrasó por lo cual perdí mi segunda conexión la cual salió adelantada

Crew was not friendly when I went to request a seat change.

There were choices for the snacks. Good choices and tasty lunch and breakfast as well.

The flight crew was amazing. I’m very tall and they moved me to an exit row unsolicited!!! Amazing service.

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

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

Hi vergin Atlantic service was good but the flight ticket agent travel up charge me extra 57 pounds as a airport charges, actually I refuse to pay but they say if I not pay £57 then they say you will not be able to travel from Heathrow to goa ,so for me there was no option and it was just 3 day before my departure so i paid, so please look in to the matter. And I have a receipt of £ 57 as well .thanks

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.

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

The check in was horrible. I stood in line for 1 hour to check in with an Air France ticket. Then I was told I had to go to Delta counter onstead to check in instead. It made no sense.

Old cabine without flat bed in business for a 12 hour flight is not acceptable

Generally good. The crew is excellent. The food could be better.

Excellent apart from transport to actual plane 10 minutes from the actual gate , walking out in the tarmac in the rain and having to climb stairs to enter while holding luggage.

Good aorcraft 777 but Worst food ever Breakfast was a bû’with matonnaise… Staff was nice but invisible most of the flight

Business class in the second leg - CDG-EVN was a disaster.

Everything went smoothly with Air France. There was a delay in departure which seemed to relate to the immigration services being short staffed.

worst experience ever i choose my seat in advance and also have my seat selected in my boarding and the they told me that my seat has been changed without notify me

Food could have been better especially the breakfast. Overall it was a good flight

No birding was given for next trip on same carrier, food was very moderate.

Decent service - nice seats. Crew were not overly attentive but can’t complain overall for the money

Very nice flight, easy connections in Keflavík, and friendly crew.

I will never fly this airline again. Checking in was poor , we had to go back to the check in counter at Raleigh - Durham international airport three times because they didn’t issue my boarding pass but rather duplicated my husband’s twice which caused a big headache at the passport control at the airport which triggered security alert and wouldn’t let us pass through we we had to wait for long time to be able to explain and clear everything after talking to the supervisor.. No food on the plane , not even crackers. No food was offered to buy ether . No ear phone was provided . Very little time to make from one plane to another and nobody to assist with smooth transition. Flight itself , we felt safe so thank you to the pilots . But customer service was terrible . We spent $ 2500 on 2 tickets, so I cannot say that service was consistent with the price .

Seats are way too much now with these new airplanes especially long flights like we had. I was 7 month pregnant and in a lot of discomfort due to small seats.

Food was horrible. This wasn’t business class. No leg space, can’t sleep in row position, huge delay

I liked how easy my transfers between flights in Keflavik were. I would have appreciated more food options in Keflavik.

The plane was flaming hot! Could not breathe. Everyone coughing from heat. Awful.

My biggest problem was the flight from KEF to DUB was delayed, which caused me to miss my connecting flight in DUB and we were forced into an unplanned 10-hour layover in DUB. Crew and boarding staff were all very friendly but this was a real inconvenience and especially uncomfortable for my disabled wife.

Not much! This was my first flight with Iceland air and unfortunately it wasn’t what I have expected. My luggage is lost nothing as of yet where it was left. Not a good service at all!!

The seat size was more like a domestic than an international flight. In fact, i would compare the ammenities, quality and service to a short hall ryan air flight, which was unexpected for an international flight. The plane was extremely hot so sleeping was difficult. My biggest complaint was that they are very strict on carry on luggage only allowing it to weigh 10kg/22lb. I try to limit myself to a carryon so i don't have to mess with bagage claim, but the wieght restriction made it impossible. I have never had a carry on weight restriction (at least enforced) on an international flight. Will not be including them in future searches.

It was great! The seats were comfortable, and they fed me during the transatlantic flight, something which I have been missing out on for the past 3 years as I travel to and from school.

This flight was cancelled at the last minute. We were rebooked on another flight but a day later. We lost a day of our vacation and paid for a night in a hotel we couldn’t use. The flights we were rebooked on (both American) messed up our seating on both flights-we didn’t get the seats we had paid for. All in all, a terrible experience.

Lost our bags in Heathrow, We didn’t receive bags in Mallorca for 3 days, out of a 7 day cycling vacation. Really inconvenient and disappointing!

We missed the flight to Barcelona because the flight from Baltimore was delayed. We flew on Vueling VW6653. Our luggage didn’t arrive. Please help us get our luggage. We are staying at Hotel Gran Via in Barcelona

The seats were tiny, being of a fairly petite build, I don’t usually expect to feel crammed and cramped in a seat, but I definitely was on this flight. I couldn’t even bend over to get anything out from under the seat in front and getting up to go to the bathroom at night with the seat backs reclined was nearly impossible. I had to do gymnastics to get over and out. For an airline that does long flights overnight, it’s kind of ridiculous.

In economy and food was ok, but with limited leg space (and I was in a 2 seat configuration) it was difficult to eat with a tiny seat tray. I spilt wine on my trousers. First time on British Air (I usually fly Turkish Air) and in a 777. Heathrow was pleasant but changing terminals awkward.

Starting with the flight Cairo to London the plain was so poor no entertainment at all uncomfortable seats although it’s 5 hours long,then an American airline plain took me from London to Miami it was a bad experience the crew most of flight time not available and they asked us to help our selves for any snacks if we need. From Miami to London actually was perfect flight with a huge plain and perfect crew but from London to Cairo was horrible plain with stiff fixed seats not movable no entertainment or wi fi very poor Menu which is unacceptable for a business class

I've done hundreds of flights in my life, and this flight was one of the best I've ever taken, From beginning to end, everything went smoothly, professionally, and with a smile and friendly attitude from all employees I interacted with. The food was delicious (and free), as were the drinks. There was just a genial and effective way in the way that British Airways organized the flight -that reminded of days in the 70's, 80's, and 90's, when flying was a fun, and exciting adventure. I enjoyed and had confidence in the abilities of the flight crew, I'll be flying British Airways several more times this summer. Thank you so much for the great experience! Cheryl Olso

Terrible! I missed my flight to my final destination and British airlines and American Airlines keep pointing fingers on each other’s. Nobody wants to take responsibility

Overall, terrific service, accommodations, and experience. Only reason comfort was rated lower was because it was difficult to keep a comfortable sleeping position for the overnight flight, but I also had an economy seat.

Book cheap flights from Seattle to London

Cheapest flights to London from Seattle found in 2024

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to London found on KAYAK in the last 72 hours.
16/10Wed
1 stopIcelandair
11h 55mSEA-LGW
£196
4/11Mon
1 stopIcelandair
12h 20mSEA-LHR
£196
3/11Sun
1 stopIcelandair
12h 20mSEA-LHR
£196
16/10Wed
1 stopDelta
16h 30mSEA-LHR
£365
16/10Wed
directIberia
9h 20mSEA-LHR
£378
16/10Wed
1 stopDelta
12h 00mSEA-LCY
£401
22/9Sun
1 stopBritish Airways
14h 45mSEA-LCY
£402
3/11Sun
1 stopBritish Airways
13h 25mSEA-LCY
£407
17/10Thu
directKLM
9h 40mSEA-LHR
£426
14/8Wed
1 stopKLM
12h 00mSEA-LCY
£544

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Last minute flights from Seattle to London

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 Seattle to London that are departing in the next 10 days.
12/5Sun
directVirgin Atlantic
9h 20mSEA-LHR
28/5Tue
multi-stopVirgin Atlantic
13h 05mLHR-SEA
£579
14/5Tue
multi-stopBritish Airways
14h 11mSEA-LHR
24/5Fri
multi-stopBritish Airways
16h 20mLHR-SEA
£604
15/5Wed
directDelta
9h 40mSEA-LHR
22/5Wed
multi-stopDelta
16h 40mLHR-SEA
£609
12/5Sun
multi-stopVirgin Atlantic
13h 14mSEA-LHR
28/5Tue
multi-stopVirgin Atlantic
13h 05mLHR-SEA
£610
12/5Sun
multi-stopDelta
22h 35mSEA-LHR
30/5Thu
multi-stopDelta
19h 25mLHR-SEA
£612
16/5Thu
directAir France
9h 40mSEA-LHR
30/5Thu
multi-stopAir France
13h 05mLHR-SEA
£665
16/5Thu
multi-stopBritish Airways
12h 58mSEA-LHR
20/5Mon
directBritish Airways
9h 45mLHR-SEA
£745
15/5Wed
multi-stopAir France
14h 25mSEA-LGW
23/5Thu
multi-stopAir France
18h 18mLGW-SEA
£792
16/5Thu
multi-stopIcelandair
32h 00mSEA-LGW
30/5Thu
multi-stopIcelandair
15h 35mLGW-SEA
£965
16/5Thu
multi-stopIcelandair
28h 56mSEA-LGW
31/5Fri
multi-stopIcelandair
15h 35mLGW-SEA
£975

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Seattle - London Flights

Departure:

Seattle (undefined)United States

Return flight deals:

London - Seattle

Cabin classes:

£2,419
£1,525
£517