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£283+ 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 22/3. 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
14 Dec — 21 Dec1
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 14 November 2025.

Mon 12/114:35SEA - KEF
Nonstop7h 40mIcelandair
Tue 20/117:00KEF - SEA
Nonstop8h 00mIcelandair
Deal found 11/11£378
Tue 9/1219:20SEA - LHR
Nonstop9h 30mVirgin Atlantic
Tue 23/1212:20LHR - SEA
Nonstop10h 38mVirgin Atlantic
Deal found 11/11£421
Sun 25/118:50SEA - LHR
Nonstop9h 30mFinnair
Thu 5/214:55LHR - SEA
Nonstop10h 00mFinnair
Deal found 13/11£436
Sun 7/1216:48SEA - LHR
Nonstop9h 42mVirgin Atlantic
Tue 23/1212:20LHR - SEA
Nonstop10h 38mVirgin Atlantic
Deal found 11/11£437
Tue 2/1218:50SEA - LHR
Nonstop9h 30mBritish Airways
Tue 9/1209:25LHR - SEA
Nonstop10h 05mBritish Airways
Deal found 13/11£438
Mon 16/218:50SEA - LHR
Nonstop9h 30mFinnair
Tue 24/214:55LHR - SEA
Nonstop10h 00mFinnair
Deal found 11/11£441
Wed 10/1216:48SEA - LHR
Nonstop9h 42mAir France
Thu 25/1212:20LHR - SEA
Nonstop10h 38mAir France
Deal found 10/11£442
Tue 2/1218:50SEA - LHR
Nonstop9h 30mBritish Airways
Thu 11/1214:55LHR - SEA
Nonstop10h 00mBritish Airways
Deal found 12/11£442
Mon 5/118:50SEA - LHR
Nonstop9h 30mBritish Airways
Fri 16/114:55LHR - SEA
Nonstop10h 00mBritish Airways
Deal found 12/11£443
Wed 18/218:50SEA - LHR
Nonstop9h 30mBritish Airways
Fri 27/209:25LHR - SEA
Nonstop10h 05mBritish Airways
Deal found 12/11£444
Mon 8/1219:20SEA - LHR
Nonstop9h 30mVirgin Atlantic
Tue 16/1212:20LHR - SEA
Nonstop10h 38mVirgin Atlantic
Deal found 12/11£446
Wed 7/118:50SEA - LHR
Nonstop9h 30mBritish Airways
Wed 14/114:55LHR - SEA
Nonstop10h 00mBritish Airways
Deal found 13/11£448

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 14 November 2025.

Fly to

Heathrow

Route

Depart

Return

Price

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Tue 13/1

14:35-06:15

Nonstop7h 40m

Reykjavik Keflavik Intl

Wed 21/1

17:00-17:00

Nonstop8h 00m

£378

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 20/4

19:00-09:25

Nonstop7h 25m

Reykjavik Keflavik Intl

Fri 24/4

19:50-20:45

Nonstop7h 55m

£378

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Tue 13/1

14:35-06:15

Nonstop7h 40m

Reykjavik Keflavik Intl

Tue 20/1

17:00-17:00

Nonstop8h 00m

£378

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 12/1

14:35-06:15

Nonstop7h 40m

Reykjavik Keflavik Intl

Thu 22/1

17:00-17:00

Nonstop8h 00m

£378

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 20/4

19:00-09:25

Nonstop7h 25m

Reykjavik Keflavik Intl

Tue 28/4

19:50-20:45

Nonstop7h 55m

£378

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 12/1

14:35-06:15

Nonstop7h 40m

Reykjavik Keflavik Intl

Wed 21/1

17:00-17:00

Nonstop8h 00m

£378

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sat 17/1

14:35-06:15

Nonstop7h 40m

Reykjavik Keflavik Intl

Wed 21/1

17:00-17:00

Nonstop8h 00m

£378

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sun 18/1

14:35-06:15

Nonstop7h 40m

Reykjavik Keflavik Intl

Thu 22/1

17:00-17:00

Nonstop8h 00m

£378

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sun 19/4

19:00-09:25

Nonstop7h 25m

Reykjavik Keflavik Intl

Fri 24/4

19:50-20:45

Nonstop7h 55m

£378

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Wed 3/12

16:48-10:30

Nonstop9h 42m

London Heathrow

Tue 9/12

12:20-14:58

Nonstop10h 38m

£442

Flights are sorted by cheapest return flights first.

Deals found on 14/11

Showing 1-10 of 44 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
673 reviews
Check prices

Crew

8.1

Entertainment

7.5

Boarding

7.7

Comfort

7.3

Overall

7.5

Food

6.9

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
673 reviews
Virgin Atlantic
7.5
Good
673 reviews
Check prices

Crew

8.1

Entertainment

7.5

Boarding

7.7

Comfort

7.3

Overall

7.5

Food

6.9

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
7,521 reviews
Virgin Atlantic
7.5
Good
673 reviews
Check prices

Crew

8.1

Entertainment

7.5

Boarding

7.7

Comfort

7.3

Overall

7.5

Food

6.9

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 14 November 2025.

  • Where can you fly direct from Seattle?

    Currently, the most popular direct flight destination from Seattle is San Francisco.

  • How much are direct flights from Seattle?

    On average, a one-way direct flight from Seattle will cost users approximately £240. If you're looking for a direct round-trip flight from Seattle, you can expect to pay around £355.

  • 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 3h 53m 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, September is worth consideration as prices are at their lowest, on average. In terms of the number of daily non-stop flights, September offers travelers the most options.

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