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Cheap flights from London to Seattle from £239

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/5. 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.
LON — SEA
24 Mar — 31 Mar1
1 adult
Sun 24/3
Sun 31/3

The best prices from London to Seattle/Tacoma Intl are usually found in February or March, booked 74 days in advance, depart on a Wednesday or Tuesday and return on a Sunday

Cheap flight deals from London to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 19 March 2024.

Popular in

July

Cheapest in

February

Round-trip from

£448

One-way from

£353
High demand for flights, 22% potential price rise
Best time to find cheap flights, 16% potential price drop
From London (LON) to Seattle/Tacoma Intl
One-way flight from London (LON) to Seattle/Tacoma Intl

What is the cheapest day to fly round-trip from London to Seattle?

Leaving on a Tuesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 18% on the overall cost on flights from London to Seattle.

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

Travelers have found it’s best to book a flight 49 days in advance to save up to 24% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 49 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London to Seattle 1-2 weeks in advance for as low as £550, or £676 for flights within the next 24 hours.

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

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, February can be a great choice for travel to Seattle. Flights to Seattle from London in February are about £523 on average during February, but can be found for as low as £340.

When is the cheapest time to fly from London to Seattle (LON - SEA)?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 8% on flights from London to Seattle by exploring options for tickets in the evening.

Cheap Icelandair flights from London to Seattle

Explore cheap flight options specifically provided by Icelandair for the route between London and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 905,048 searches. Data last updated 19 March 2024.
Check out some of the cheapest Icelandair flights we've come across from London to Seattle. Be sure to come back soon if the deals available don't appeal to you at this time.
Fri 17/513:00LGW - SEA
1 stop15h 35mIcelandair
Mon 20/518:55SEA - LGW
1 stop32h 50mIcelandair
Deal found 18/3£433
Fri 17/513:00LGW - SEA
1 stop15h 35mIcelandair
Mon 20/518:55SEA - LGW
1 stop32h 50mIcelandair
Deal found 17/3£442
Thu 16/513:00LGW - SEA
1 stop15h 35mIcelandair
Tue 11/623:00SEA - LGW
1 stop28h 45mIcelandair
Deal found 18/3£459
Tue 16/421:25LHR - SEA
1 stop28h 15mIcelandair
Tue 23/415:50SEA - LHR
1 stop12h 05mIcelandair
Deal found 17/3£463
Tue 7/521:25LHR - SEA
1 stop28h 15mIcelandair
Mon 3/623:00SEA - LHR
1 stop28h 55mIcelandair
Deal found 18/3£463
Fri 17/521:25LHR - SEA
1 stop31h 10mIcelandair
Mon 20/515:50SEA - LHR
1 stop20h 30mIcelandair
Deal found 18/3£478
Sat 4/521:25LHR - SEA
1 stop28h 15mIcelandair
Sat 11/518:55SEA - LHR
1 stop17h 25mIcelandair
Deal found 18/3£481
Thu 28/312:15LHR - SEA
1 stop12h 30mIcelandair
Wed 10/415:50SEA - LHR
1 stop12h 05mIcelandair
Deal found 18/3£994
Mon 25/312:00LGW - SEA
1 stop12h 45mIcelandair
Sat 6/416:25SEA - LGW
1 stop11h 20mIcelandair
Deal found 18/3£1,003
  • Icelandair is one of the most popular airlines used for those travelling from London to Seattle. Flights from Icelandair travelling this route typically cost £670.37 RT. This price is typically 64% more expensive than other airlines that offer London to Seattle flights. When booking this route, the cheapest RT price found was £351. The most popular departure airport in London when flying to Seattle is London Heathrow Airport. The most popular airport to fly into when visiting Seattle is Seattle/Tacoma Intl Airport. When flying from London to Seattle, Icelandair flights are 7% more popular than any other airline flying that same route.

Cheap Lufthansa flights from London to Seattle

Explore cheap flight options specifically provided by Lufthansa for the route between London and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 905,048 searches. Data last updated 19 March 2024.
Browse through some of the cheapest Lufthansa flights travelling from London to Seattle. Ensure the flight price, dates, time, and airline match your criteria before you book.
Wed 17/406:30LHR - SEA
1 stop13h 55mLufthansa
Thu 25/414:27SEA - LHR
1 stop13h 18mLufthansa
Deal found 17/3£474
Mon 15/414:10LHR - SEA
1 stop12h 17mLufthansa
Mon 22/413:10SEA - LHR
1 stop16h 10mLufthansa
Deal found 18/3£480
Mon 15/417:45LGW - SEA
1 stop26h 40mLufthansa
Mon 22/414:15SEA - LGW
1 stop18h 45mLufthansa
Deal found 17/3£485
Mon 25/319:15LHR - SEA
2 stops24h 35mLufthansa
Sat 6/415:20SEA - LHR
2 stops36h 30mLufthansa
Deal found 18/3£1,060
Tue 26/317:50LGW - SEA
1 stop26h 00mLufthansa
Tue 2/414:27SEA - LGW
2 stops18h 33mLufthansa
Deal found 18/3£1,094
Tue 26/318:15LCY - SEA
1 stop25h 35mLufthansa
Tue 2/414:27SEA - LCY
2 stops17h 58mLufthansa
Deal found 18/3£1,118
  • One of the most popular airlines travelling from London to Seattle is Lufthansa. Flights from Lufthansa travelling this route typically cost £754.73 RT. This price is typically 63% cheaper than other airlines that offer London to Seattle flights. When booking this route, the cheapest RT price found was £486. The most popular departure airport in London when flying to Seattle is London Heathrow Airport. The most popular airport to fly into when visiting Seattle is Seattle/Tacoma Intl Airport. When flying from London to Seattle, Lufthansa flights are 3% more popular than any other airline flying that same route.

Cheap London to Seattle flights in March & April 2024

Find cheap flight options from London to Seattle specifically for the months of March and April 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 905,048 searches. Prices were last updated on 19 March 2024.
These are some of the best deals we've found on flights to Seattle in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Wed 17/410:00LGW - SEA
2 stops30h 34mMultiple Airlines
Tue 23/409:45SEA - LGW
1 stop17h 15mMultiple Airlines
Deal found 17/3£445
Tue 16/414:00LGW - SEA
2 stops26h 34mMultiple Airlines
Tue 23/409:45SEA - LGW
1 stop17h 15mMultiple Airlines
Deal found 17/3£448
Tue 23/410:45LGW - SEA
1 stop19h 02mMultiple Airlines
Sat 27/421:32SEA - LGW
2 stops28h 28mMultiple Airlines
Deal found 17/3£456
Mon 15/410:15LHR - SEA
2 stops16h 12mAir Canada
Mon 22/415:20SEA - LHR
1 stop14h 00mAir Canada
Deal found 18/3£458
Mon 8/406:45LHR - SEA
1 stop18h 16mMultiple Airlines
Mon 22/418:45SEA - LHR
1 stop14h 00mMultiple Airlines
Deal found 17/3£459
Tue 23/410:45LGW - SEA
1 stop19h 02mMultiple Airlines
Wed 1/517:58SEA - LGW
2 stops29h 02mMultiple Airlines
Deal found 17/3£460
Wed 3/406:45LHR - SEA
1 stop17h 45mMultiple Airlines
Mon 15/418:45SEA - LHR
1 stop18h 50mMultiple Airlines
Deal found 18/3£460
Tue 16/421:25LHR - SEA
1 stop28h 15mIcelandair
Tue 23/415:50SEA - LHR
1 stop12h 05mIcelandair
Deal found 17/3£463
Wed 17/410:00LGW - SEA
2 stops30h 34mMultiple Airlines
Thu 25/410:20SEA - LGW
1 stop16h 40mMultiple Airlines
Deal found 17/3£463

London to Seattle 2024 flight deals

Discover exclusive flight deals for travel between London and Seattle in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 905,048 searches. Data last updated 19 March 2024.
These are some of the best deals we've found on flights to Seattle in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Fri 17/513:00LGW - SEA
1 stop15h 35mIcelandair
Mon 20/518:55SEA - LGW
1 stop32h 50mIcelandair
Deal found 18/3£433
Sat 21/913:00LGW - SEA
1 stop12h 55mIcelandair
Sat 5/1018:55SEA - LGW
1 stop32h 50mIcelandair
Deal found 17/3£437
Sat 21/913:05LHR - SEA
1 stop15h 30mIcelandair
Sat 5/1018:55SEA - LHR
1 stop33h 00mIcelandair
Deal found 17/3£440
Fri 17/513:00LGW - SEA
1 stop15h 35mIcelandair
Mon 20/518:55SEA - LGW
1 stop32h 50mIcelandair
Deal found 17/3£442
Fri 20/913:05LHR - SEA
1 stop12h 50mIcelandair
Tue 24/918:55SEA - LHR
1 stop33h 00mIcelandair
Deal found 18/3£442
Wed 17/410:00LGW - SEA
2 stops30h 34mMultiple Airlines
Tue 23/409:45SEA - LGW
1 stop17h 15mMultiple Airlines
Deal found 17/3£445
Tue 10/913:05LHR - SEA
1 stop15h 30mIcelandair
Mon 23/918:55SEA - LHR
1 stop33h 00mIcelandair
Deal found 18/3£445
Mon 9/913:00LGW - SEA
1 stop12h 55mIcelandair
Thu 12/915:50SEA - LGW
1 stop11h 55mIcelandair
Deal found 18/3£446
Tue 16/414:00LGW - SEA
2 stops26h 34mMultiple Airlines
Tue 23/409:45SEA - LGW
1 stop17h 15mMultiple Airlines
Deal found 17/3£448

Direct flights to Seattle from London

Discover direct flight options from London to Seattle. Find direct flights with no stopovers, providing a convenient travel experience. Explore direct flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 905,048 searches. Data last updated 19 March 2024.
If you're seeking options on non-stop flights from London to Seattle, check out these fares. Those looking to potentially save on 1 or 2-stop flights from London to Seattle should utilise the search form at the top of the page.
Mon 15/412:45LHR - SEA
Nonstop9h 55mVirgin Atlantic
Mon 22/416:30SEA - LHR
Nonstop9h 20mVirgin Atlantic
Deal found 18/3£479
Mon 8/415:55LHR - SEA
Nonstop10h 20mMultiple Airlines
Mon 22/419:30SEA - LHR
Nonstop9h 45mMultiple Airlines
Deal found 17/3£486
Wed 10/409:50LHR - SEA
Nonstop9h 45mFinnair
Tue 16/419:40SEA - LHR
Nonstop9h 20mFinnair
Deal found 18/3£496
Wed 17/409:50LHR - SEA
Nonstop9h 45mBritish Airways
Mon 22/419:40SEA - LHR
Nonstop9h 20mBritish Airways
Deal found 17/3£497
Mon 15/415:55LHR - SEA
Nonstop10h 20mAir France
Mon 22/419:30SEA - LHR
Nonstop9h 45mAir France
Deal found 18/3£499
Wed 10/409:50LHR - SEA
Nonstop9h 45mFinnair
Tue 16/413:30SEA - LHR
Nonstop9h 20mFinnair
Deal found 17/3£500
Mon 29/412:45LHR - SEA
Nonstop9h 55mVirgin Atlantic
Tue 7/516:30SEA - LHR
Nonstop9h 20mVirgin Atlantic
Deal found 18/3£509
Tue 9/412:45LHR - SEA
Nonstop9h 55mVirgin Atlantic
Tue 30/419:30SEA - LHR
Nonstop9h 45mVirgin Atlantic
Deal found 17/3£516
Wed 10/415:55LHR - SEA
Nonstop10h 20mDelta
Tue 16/419:30SEA - LHR
Nonstop9h 45mDelta
Deal found 17/3£518

London to Seattle flights leaving soon

Find last-minute flight options from London to Seattle for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 905,048 searches. Data last updated 19 March 2024.
Consider one of these great deals we found on last-minute flights from London to Seattle. To prevent any unwanted surprises, users should verify their flight info before booking.
Mon 25/309:50LHR - SEA
1 stop16h 25mAer Lingus
Mon 1/418:45SEA - LHR
1 stop29h 15mAer Lingus
Deal found 18/3£851
Sun 24/320:45LHR - SEA
1 stop29h 30mAer Lingus
Sun 31/319:10SEA - LHR
1 stop28h 50mAer Lingus
Deal found 17/3£869
Sat 23/320:15LGW - SEA
1 stop24h 35mMultiple Airlines
Sun 7/422:35SEA - LGW
2 stops27h 25mMultiple Airlines
Deal found 18/3£872
Thu 28/306:40LHR - SEA
2 stops22h 19mMultiple Airlines
Wed 10/412:12SEA - LHR
2 stops23h 18mMultiple Airlines
Deal found 18/3£913
Sun 24/307:50LHR - SEA
2 stops17h 10mMultiple Airlines
Sun 31/309:35SEA - LHR
1 stop13h 00mMultiple Airlines
Deal found 17/3£914
Mon 25/306:50LCY - SEA
1 stop19h 25mAer Lingus
Mon 1/418:45SEA - LCY
1 stop14h 45mAer Lingus
Deal found 18/3£926
Mon 25/312:40LHR - SEA
1 stop17h 06mKLM
Sat 6/419:30SEA - LHR
Nonstop9h 45mKLM
Deal found 18/3£931
Tue 26/306:30LHR - SEA
1 stop13h 20mUnited Airlines
Tue 2/405:44SEA - LHR
1 stop17h 11mUnited Airlines
Deal found 18/3£948
Sun 24/308:25LHR - SEA
1 stop19h 39mJetBlue
Sat 30/323:50SEA - LHR
1 stop25h 40mJetBlue
Deal found 18/3£951

One-way flights to Seattle from London

Search for one-way flight options from London to Seattle. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 905,048 searches. Data last updated 19 March 2024.
Take a look at some of the one-way flights we've detected from London to Seattle. Users can also find round-trip London to Seattle flights by using the search form above.
Sun 19/515:40SEN - SEA
2 stops49h 17mMultiple Airlines
Deal found 18/3£239
Sun 19/506:05LTN - SEA
2 stops25h 54mMultiple Airlines
Deal found 18/3£258
Mon 15/419:50LTN - SEA
3 stops52h 50mMultiple Airlines
Deal found 18/3£263
Mon 20/506:00LTN - SEA
2 stops14h 56mMultiple Airlines
Deal found 18/3£335
Fri 3/506:05LTN - SEA
3 stops40h 12mMultiple Airlines
Deal found 19/3£344
Mon 20/522:15STN - SEA
3 stops44h 11mMultiple Airlines
Deal found 18/3£350
Wed 17/413:05LHR - SEA
1 stop12h 35mIcelandair
Deal found 17/3£353
Sat 8/621:25LHR - SEA
1 stop21h 55mIcelandair
Deal found 17/3£358
Mon 27/514:00LGW - SEA
2 stops26h 10mMultiple Airlines
Deal found 18/3£360

Find flights from London to Seattle within your budget

Customise your flight search to find flights from London to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 905,048 searches. Data last updated 19 March 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£433 - £478

Route

Depart

Return

Price

London GatwickSeattle/Tacoma Intl

LGW - SEA

LGWSEA

London Gatwick

Fri 17/5

1 stop15h 35m

Seattle/Tacoma Intl

Mon 20/5

1 stop32h 50m

£433

London GatwickSeattle/Tacoma Intl

LGW - SEA

LGWSEA

London Gatwick

Wed 17/4

2 stops30h 34m

Seattle/Tacoma Intl

Tue 23/4

1 stop17h 15m

£445

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Mon 15/4

2 stops16h 12m

Seattle/Tacoma Intl

Mon 22/4

1 stop14h 00m

£458

London GatwickSeattle/Tacoma Intl

LGW - SEA

LGWSEA

London Gatwick

Mon 15/4

2 stops30h 23m

Seattle/Tacoma Intl

Mon 22/4

2 stops26h 55m

£474

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Wed 17/4

1 stop13h 55m

Seattle/Tacoma Intl

Thu 25/4

1 stop13h 18m

£474

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Tue 9/4

Nonstop9h 45m

Seattle/Tacoma Intl

Tue 23/4

1 stop12h 48m

£475

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Tue 16/4

2 stops41h 40m

Seattle/Tacoma Intl

Tue 23/4

2 stops42h 40m

£476

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Tue 16/4

2 stops19h 55m

Seattle/Tacoma Intl

Mon 22/4

3 stops17h 30m

£477

London GatwickSeattle/Tacoma Intl

LGW - SEA

LGWSEA

London Gatwick

Wed 10/4

1 stop18h 24m

Seattle/Tacoma Intl

Tue 16/4

1 stop14h 17m

£478

Flights are sorted by cheapest first

Deals found on 18/3

When is the best time to book a flight from London to Seattle?

Use this chart to determine the optimal time to book a return flight from London to Seattle. Price data was last updated on 28 January 2024.
Booking 74 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

When is the cheapest time to fly from London to Seattle?

Use this chart to determine the cheapest time to fly return from London to Seattle. Price data was last updated on 10 March 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their London to Seattle flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Seattle by month

Plan your trip from London to Seattle by taking into account the cheapest months to travel. The average price of a one-way flight from London to Seattle is currently £318 while a return flight costs £465. Price data was last updated on 10 March 2024.

Currently, December is the cheapest month in which you can book a flight from London to Seattle (average of £570). Flying from London to Seattle in July is currently the most expensive (average of £783). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

£478

February

£467

March

£499

April

£488

May

£514

June

£565

July

£615

August

£593

September

£539

October

£510

November

£468

December

£448

Temperature and rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average temperature and rainfall totals by month.

SEA

Temperature

5 - 19 °C

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 19 March 2024.
Read through reviews of airlines operating flights from London to Seattle, such as Icelandair, Lufthansa and British Airways. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very Good
11,551 reviews

Overall

8.1

Comfort

7.9

Boarding

8.2

Entertainment

8.1

Food

7.5

Crew

8.6

Reviews

1 / 10

It was a good experience other than a short delay.

8.1
Very Good
11,551 reviews
8.1
Very Good
11,551 reviews

Overall

8.1

Comfort

7.9

Boarding

8.2

Entertainment

8.1

Food

7.5

Crew

8.6

Reviews

1 / 10

It was a good experience other than a short delay.

7.8
Good
2,183 reviews
8.1
Very Good
11,551 reviews

Overall

8.1

Comfort

7.9

Boarding

8.2

Entertainment

8.1

Food

7.5

Crew

8.6

Reviews

1 / 10

It was a good experience other than a short delay.

7.8
Good
1,720 reviews
8.1
Very Good
11,551 reviews

Overall

8.1

Comfort

7.9

Boarding

8.2

Entertainment

8.1

Food

7.5

Crew

8.6

Reviews

1 / 10

It was a good experience other than a short delay.

7.8
Good
1,376 reviews
8.1
Very Good
11,551 reviews

Overall

8.1

Comfort

7.9

Boarding

8.2

Entertainment

8.1

Food

7.5

Crew

8.6

Reviews

1 / 10

It was a good experience other than a short delay.

7.7
Good
4,921 reviews
8.1
Very Good
11,551 reviews

Overall

8.1

Comfort

7.9

Boarding

8.2

Entertainment

8.1

Food

7.5

Crew

8.6

Reviews

1 / 10

It was a good experience other than a short delay.

Related info for your journey

Find useful and relevant information for your journey from London to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Seattle from London?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Seattle from London. Booking flights from London to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 21 daily inbound flights from London from 14 different airlines.

  • Can I find flights from London to Seattle for under £500 on Cheapflights?

    Yes, there are multiple flights from London to Seattle for under £500. The cheapest flight booked recently is on Icelandair for just £433, but on average you can expect to pay £459.

  • Are there nonstop flights from London to Seattle for under £500 on Cheapflights?

    Cheapflights has at least 20 direct flights from London to Seattle under £500. A good price for a nonstop flight from London to Seattle is less than £516.

  • Are there last-minute flights available from London to Seattle for under £900?

    There are currently 20+ open flights from London to Seattle within the next 7 days for less than £900.

  • What are the cheapest airlines flying from London to Seattle round-trip?

    Icelandair, at £433, was found to be the cheapest airline from London to Seattle.Alternate airlines flying return to your destination include Air Canada and KLM. Icelandair is priced at 17% lower than the current average price of a flight leaving 3 months from now.

  • What are the most popular routes from London to Seattle?

  • What are the most popular airlines that fly from London to Seattle?

  • What are the most reliable airlines from London to Seattle?

    Consider KLM (90%), Air France (90%) or Delta (90%) when booking your flight. These represent the most reliable airlines when flying from London to Seattle.

  • What are the cheapest flights from London to Seattle?

    On average you can expect to pay £1,830 for a flight from London to Seattle. The cheapest flight overall is £472 while the most popular route, (London Heathrow - Seattle/Tacoma Intl) is currently priced at £440.

  • What does LHR to SEA mean?

    London Heathrow Airport is LHR and Seattle/Tacoma Intl Airport is SEA. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN).

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from London to Seattle on these airlines
Choose from the following airlines for your flight from London to Seattle. Flights are based on user searches made on Cheapflights and were last updated on 19 March 2024.

Top 10 airlines flying from London to Seattle

Discover the top 10 airlines that operate flights from London to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 905,048 searches. Data last updated 19 March 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£275Average£526FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
British AirwaysCheapest£340Average£514FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£382Average£593FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£389Average£593FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
American AirlinesCheapest£410Average£565FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest£424Average£501FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
FinnairCheapest£432Average£573FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£437Average£564FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
KLMCheapest£440Average£589FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£441Average£507FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Search flights from London to Seattle by cabin class

Find flights from London to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from London to Seattle

Find hourly flight availability from London to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 March 2024.
1%of flight departuresEarly morningMidnight to 6 am
47%of flight departuresMorning6 am to noon
52%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Midday
6 PM

Weekly flight availability from London to Seattle

Explore weekly flight availability from London to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 19 March 2024.
Monday20daily flights
Tuesday24daily flights
Wednesday20daily flights
Thursday20daily flights
Friday20daily flights
Saturday25daily flights
Sunday20daily flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Seattle?

Cheapflights makes it easy to find London to Seattle flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from London to Seattle?

Millions of users choose and trust Cheapflights to book the best flight deals from London to Seattle for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from London to Seattle with no change fees?

Certainly. Search results for flights to Seattle from London shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from London to Seattle become cheaper?

Yes, Cheapflights offers price alerts on London to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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