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£37+ 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 11/12. 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
11 déc. — 18 déc.1
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 11 novembre 2025.

mer. 10/1207:55SEA - DEN
Nonstop2h 49mAlaska Airlines
mer. 10/1215:42DEN - SEA
Nonstop3h 08mAlaska Airlines
Deal found 9/11£71
mer. 10/1207:40SEA - DEN
Nonstop2h 52mDelta
mer. 10/1219:45DEN - SEA
Nonstop3h 16mDelta
Deal found 10/11£74
mer. 3/1207:55SEA - DEN
Nonstop2h 49mAlaska Airlines
mer. 10/1206:45DEN - SEA
Nonstop3h 13mAlaska Airlines
Deal found 10/11£75
lun. 15/1207:55SEA - DEN
Nonstop2h 49mAlaska Airlines
ven. 19/1206:02DEN - SEA
Nonstop3h 08mAlaska Airlines
Deal found 9/11£78
mar. 2/1219:35SEA - DEN
Nonstop2h 46mDelta
jeu. 11/1219:45DEN - SEA
Nonstop3h 16mDelta
Deal found 10/11£81
mer. 3/1207:55SEA - DEN
Nonstop2h 49mAlaska Airlines
mar. 9/1206:45DEN - SEA
Nonstop3h 13mAlaska Airlines
Deal found 10/11£83
jeu. 4/1219:35SEA - DEN
Nonstop2h 46mDelta
dim. 7/1206:05DEN - SEA
Nonstop3h 10mDelta
Deal found 9/11£84
mar. 2/1219:35SEA - DEN
Nonstop2h 46mDelta
lun. 8/1206:05DEN - SEA
Nonstop3h 10mDelta
Deal found 10/11£86
dim. 1/319:40SEA - DEN
Nonstop2h 45mDelta
mer. 4/306:29DEN - SEA
Nonstop3h 11mDelta
Deal found 10/11£89
lun. 2/320:14SEA - DEN
Nonstop2h 45mHawaiian Airlines
mer. 4/312:34DEN - SEA
Nonstop3h 07mHawaiian Airlines
Deal found 10/11£90
lun. 15/1220:14SEA - DEN
Nonstop2h 45mAlaska Airlines
sam. 20/1206:02DEN - SEA
Nonstop3h 08mAlaska Airlines
Deal found 10/11£93
lun. 8/1214:19SEA - DEN
Nonstop2h 44mAlaska Airlines
lun. 8/1220:20DEN - SEA
Nonstop3h 10mAlaska Airlines
Deal found 10/11£96

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 11 novembre 2025.

Fly to

Heathrow

Route

Depart

Return

Price

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

mer. 10/12

07:40-11:32

Nonstop2h 52m

Denver Intl

mer. 10/12

19:45-22:01

Nonstop3h 16m

£74

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

mar. 9/12

12:35-16:18

Nonstop2h 43m

Denver Intl

mar. 16/12

08:05-10:09

Nonstop3h 04m

£75

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

mer. 3/12

07:55-11:44

Nonstop2h 49m

Denver Intl

mer. 10/12

06:45-08:58

Nonstop3h 13m

£75

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

mer. 3/12

07:55-11:44

Nonstop2h 49m

Denver Intl

jeu. 11/12

20:20-22:30

Nonstop3h 10m

£75

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

lun. 15/12

07:55-11:44

Nonstop2h 49m

Denver Intl

lun. 15/12

20:20-22:30

Nonstop3h 10m

£75

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

mer. 3/12

07:55-11:44

Nonstop2h 49m

Denver Intl

mer. 3/12

15:42-17:50

Nonstop3h 08m

£78

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

mar. 16/12

11:02-14:46

Nonstop2h 44m

Denver Intl

ven. 19/12

06:02-08:10

Nonstop3h 08m

£78

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

lun. 15/12

07:40-11:32

Nonstop2h 52m

Denver Intl

jeu. 1/1

06:05-08:20

Nonstop3h 15m

£81

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

mer. 17/12

19:35-23:21

Nonstop2h 46m

Denver Intl

jeu. 1/1

06:05-08:20

Nonstop3h 15m

£81

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

mar. 2/12

19:35-23:21

Nonstop2h 46m

Denver Intl

ven. 12/12

06:05-08:15

Nonstop3h 10m

£81

Flights are sorted by cheapest return flights first.

Deals found on 10/11

Showing 1-10 of 54 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

Entertainment

7.5

Overall

7.5

Comfort

7.3

Food

6.9

Boarding

7.7

Crew

8.1

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

Entertainment

7.5

Overall

7.5

Comfort

7.3

Food

6.9

Boarding

7.7

Crew

8.1

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
7,511 reviews
Virgin Atlantic
7.5
Good
673 reviews
Check prices

Entertainment

7.5

Overall

7.5

Comfort

7.3

Food

6.9

Boarding

7.7

Crew

8.1

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 11 novembre 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 4h 07m 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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