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£285+ Direct flights from Seattle

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 4/2. 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.
SEA — LHR
17 Jan — 24 Jan1
1 adult
1 adult, Economy, 0 bags

Direct flights from Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Seattle
Explore the most affordable flight options available from Seattle. Find the lowest fares based on data from user searches, with prices last updated on 18 December 2025.

Fri 30/114:35SEA - KEF
Nonstop7h 40mIcelandair
Fri 6/217:00KEF - SEA
Nonstop8h 00mIcelandair
Deal found 16/12£352
Fri 20/214:35SEA - KEF
Nonstop7h 40mIcelandair
Fri 27/217:00KEF - SEA
Nonstop8h 00mIcelandair
Deal found 16/12£372
Thu 15/118:25SEA - LHR
Nonstop9h 30mAir France
Wed 28/112:20LHR - SEA
Nonstop10h 29mAir France
Deal found 17/12£456
Mon 12/118:25SEA - LHR
Nonstop9h 30mVirgin Atlantic
Mon 19/114:30LHR - SEA
Nonstop10h 05mVirgin Atlantic
Deal found 15/12£458
Wed 18/315:35SEA - KEF
Nonstop7h 40mIcelandair
Thu 2/419:45KEF - SEA
Nonstop7h 55mIcelandair
Deal found 16/12£458
Thu 15/118:25SEA - LHR
Nonstop9h 30mVirgin Atlantic
Sat 31/115:05LHR - SEA
Nonstop10h 05mVirgin Atlantic
Deal found 16/12£458
Sun 15/315:35SEA - KEF
Nonstop7h 40mIcelandair
Tue 31/316:50KEF - SEA
Nonstop8h 05mIcelandair
Deal found 16/12£466
Fri 30/113:35SEA - LHR
Nonstop9h 35mFinnair
Fri 6/214:55LHR - SEA
Nonstop10h 00mFinnair
Deal found 16/12£466
Mon 12/118:25SEA - LHR
Nonstop9h 30mVirgin Atlantic
Mon 26/114:30LHR - SEA
Nonstop10h 05mVirgin Atlantic
Deal found 15/12£468
Wed 21/118:50SEA - LHR
Nonstop9h 30mBritish Airways
Wed 28/114:55LHR - SEA
Nonstop10h 00mBritish Airways
Deal found 16/12£470
Wed 18/218:50SEA - LHR
Nonstop9h 30mFinnair
Fri 27/209:25LHR - SEA
Nonstop10h 05mFinnair
Deal found 17/12£471
Mon 2/218:50SEA - LHR
Nonstop9h 30mFinnair
Mon 9/214:55LHR - SEA
Nonstop10h 00mFinnair
Deal found 14/12£473

Find direct flights from Seattle within your budget

 
Use the slider to find direct flights from Seattle within your budget. Price data is based on user searches made on Cheapflights. Over the past seven days, Cheapflights users made 858,174 searches. This data was last updated on 18 December 2025.

Fly to

Heathrow

Route

Depart

Return

Price

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Fri 30/1

14:35-06:15

Nonstop7h 40m

Reykjavik Keflavik Intl

Fri 6/2

17:00-17:00

Nonstop8h 00m

£352

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sun 22/2

14:35-06:15

Nonstop7h 40m

Reykjavik Keflavik Intl

Mon 2/3

17:00-17:00

Nonstop8h 00m

£372

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Tue 17/3

15:35-06:15

Nonstop7h 40m

Reykjavik Keflavik Intl

Thu 2/4

19:45-20:40

Nonstop7h 55m

£372

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Wed 18/2

14:35-06:15

Nonstop7h 40m

Reykjavik Keflavik Intl

Tue 24/2

17:00-17:00

Nonstop8h 00m

£372

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sun 8/3

15:00-05:45

Nonstop7h 45m

Reykjavik Keflavik Intl

Wed 18/3

17:00-18:00

Nonstop8h 00m

£372

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 9/3

15:35-06:15

Nonstop7h 40m

Reykjavik Keflavik Intl

Wed 18/3

17:00-18:00

Nonstop8h 00m

£372

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Tue 17/2

14:35-06:15

Nonstop7h 40m

Reykjavik Keflavik Intl

Wed 25/2

17:00-17:00

Nonstop8h 00m

£372

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Wed 25/2

14:35-06:15

Nonstop7h 40m

Reykjavik Keflavik Intl

Mon 2/3

17:00-17:00

Nonstop8h 00m

£372

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sun 19/4

19:00-09:25

Nonstop7h 25m

Reykjavik Keflavik Intl

Thu 23/4

19:45-20:40

Nonstop7h 55m

£372

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 19/2

14:35-06:15

Nonstop7h 40m

Reykjavik Keflavik Intl

Wed 25/2

17:00-17:00

Nonstop8h 00m

£372

Flights are sorted by cheapest return flights first.

Deals found on 16/12

Showing 1-10 of 37 results
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Best time to book a flight from Seattle

Have a flexible travel schedule? Discover the best time to fly from Seattle with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines flying non-stop to Seattle

Get insights into the airlines that provide direct flights from 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 from Seattle. Reviews last updated Cheapflights.
Check out reviews from past customers who have flown Virgin Atlantic and British Airways from Seattle to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Overall

7.5

Food

6.9

Crew

8.2

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.5
Good
675 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Overall

7.5

Food

6.9

Crew

8.2

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
British Airways
6.7
Okay
7,583 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Entertainment

7.5

Boarding

7.7

Overall

7.5

Food

6.9

Crew

8.2

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

Related info for your journey

Access useful and relevant information related to your journey from Seattle. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 18 December 2025.

  • Where can you fly direct from Seattle?

    Currently, the most popular direct flight destination from Seattle is Tokyo Haneda Airport.

  • How much are direct flights from Seattle?

    On average, a one-way direct flight from Seattle will cost users approximately £253. If you're looking for a direct round-trip flight from Seattle, you can expect to pay around £382.

  • How long is a direct flight from Seattle?

    While the flight duration depends heavily on the destination, on average, travelers can expect non-stop flights from Seattle to last approximately 4h 22m on average. The quickest direct flight from Seattle at this time departs from Seattle (1h 00m), while the longest leaves from Seattle (9h 15m).

  • What is the best time of year to fly direct from Seattle?

    If you're seeking the lowest price on a direct flight from Seattle, January is worth consideration as prices are at their lowest, on average. In terms of the number of daily non-stop flights, January offers travelers the most options.

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