Direct flights from Seattle | Cheapflights

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SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Fri 6/11

21:35-23:56

Nonstop2h 21m

San Francisco

Mon 9/11

17:44-20:04

Nonstop2h 20m

£129

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Fri 9/10

13:19-15:35

Nonstop2h 16m

San Francisco

Mon 12/10

16:25-18:44

Nonstop2h 19m

£129

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Fri 9/10

21:35-23:56

Nonstop2h 21m

San Francisco

Mon 12/10

20:58-23:13

Nonstop2h 15m

£129

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Fri 8/1

17:40-20:00

Nonstop2h 20m

San Francisco

Mon 11/1

20:05-22:26

Nonstop2h 21m

£129

Fastest return journey

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Wed 7/10

19:36-21:49

Nonstop2h 13m

San Francisco

Sun 11/10

06:07-08:20

Nonstop2h 13m

£134

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Wed 16/9

21:30-23:51

Nonstop2h 21m

San Francisco

Sun 20/9

10:29-12:44

Nonstop2h 15m

£134

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Wed 7/10

10:51-13:08

Nonstop2h 17m

San Francisco

Sun 11/10

20:58-23:13

Nonstop2h 15m

£134

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Fri 9/10

21:35-23:56

Nonstop2h 21m

San Francisco

Sun 11/10

10:35-12:57

Nonstop2h 22m

£147

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Fri 16/10

21:35-23:56

Nonstop2h 21m

San Francisco

Sun 18/10

06:20-08:41

Nonstop2h 21m

£147

SeattleSan Francisco

SEA Seattle/Tacoma Intl - SFO San Francisco

SEASFO

Seattle/Tacoma Intl

Fri 23/10

21:35-23:56

Nonstop2h 21m

San Francisco

Sun 25/10

06:20-08:41

Nonstop2h 21m

£147

Flights are sorted by cheapest return flights first.

Deals found on 14/8

Showing 1-10 of 46 resultsSorted by cheapest first

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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.

SEA-LHR

SEA-SFO

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

Check out reviews from past customers who have flown Alaska Airlines,Virgin Atlantic, andBritish 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.

Alaska Airlines

7.9

Good

Reviews

1 / 20

6.0

Good

Anonymous,Jul 2026

SEA - LHR

Alaska has a brilliant crew. And the seats are good. As much as i loved my trip from Heathrow to Seattle, i definitely did not feel the same on the return flight. A lot was due to feeling very cramped and unfortunately for me, i had a kicker behind me and a passenger who did not stop moving (but constantly) next to me. The good was not good and i noticed that most people around me left most of their meal. The ice cream was very nice. I did not have breakfast. However the food was very nice on the way to Seattle

Alaska Airlines

7.9

Good

Alaska Airlines

7.9

Good

Reviews

1 / 20

6.0

Good

Anonymous,Jul 2026

SEA - LHR

Alaska has a brilliant crew. And the seats are good. As much as i loved my trip from Heathrow to Seattle, i definitely did not feel the same on the return flight. A lot was due to feeling very cramped and unfortunately for me, i had a kicker behind me and a passenger who did not stop moving (but constantly) next to me. The good was not good and i noticed that most people around me left most of their meal. The ice cream was very nice. I did not have breakfast. However the food was very nice on the way to Seattle

Virgin Atlantic

7.4

Good

Alaska Airlines

7.9

Good

Reviews

1 / 20

6.0

Good

Anonymous,Jul 2026

SEA - LHR

Alaska has a brilliant crew. And the seats are good. As much as i loved my trip from Heathrow to Seattle, i definitely did not feel the same on the return flight. A lot was due to feeling very cramped and unfortunately for me, i had a kicker behind me and a passenger who did not stop moving (but constantly) next to me. The good was not good and i noticed that most people around me left most of their meal. The ice cream was very nice. I did not have breakfast. However the food was very nice on the way to Seattle

British Airways

6.7

Okay

Alaska Airlines

7.9

Good

Reviews

1 / 20

6.0

Good

Anonymous,Jul 2026

SEA - LHR

Alaska has a brilliant crew. And the seats are good. As much as i loved my trip from Heathrow to Seattle, i definitely did not feel the same on the return flight. A lot was due to feeling very cramped and unfortunately for me, i had a kicker behind me and a passenger who did not stop moving (but constantly) next to me. The good was not good and i noticed that most people around me left most of their meal. The ice cream was very nice. I did not have breakfast. However the food was very nice on the way to Seattle

Related info for your journey

Where can you fly direct from Seattle?
Currently, the most popular direct flight destination from Seattle is London Heathrow Airport.
How much are direct flights from Seattle?
On average, a one-way direct flight from Seattle will cost users approximately £251. If you're looking for a direct round-trip flight from Seattle, you can expect to pay around £335.
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 29m 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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