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£36+ 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 18/2. 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
22 Jan — 29 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 23 December 2025.

Sat 28/213:51SEA - PHX
Nonstop3h 02mFrontier
Mon 2/306:00PHX - SEA
Nonstop3h 13mFrontier
Deal found 21/12£71
Tue 20/113:45SEA - PHX
Nonstop2h 50mDelta
Sat 24/114:45PHX - SEA
Nonstop3h 14mDelta
Deal found 22/12£72
Sun 11/119:55SEA - PHX
Nonstop2h 59mDelta
Sat 17/114:45PHX - SEA
Nonstop3h 14mDelta
Deal found 21/12£80
Fri 27/205:15SEA - PHX
Nonstop2h 45mSouthwest
Mon 2/321:05PHX - SEA
Nonstop3h 10mSouthwest
Deal found 23/12£87
Thu 5/220:07SEA - PHX
Nonstop2h 52mMultiple Airlines
Thu 12/206:00PHX - SEA
Nonstop3h 13mMultiple Airlines
Deal found 22/12£90
Thu 29/120:07SEA - PHX
Nonstop2h 52mHawaiian Airlines
Sat 31/109:00PHX - SEA
Nonstop3h 19mHawaiian Airlines
Deal found 21/12£95
Thu 29/120:07SEA - PHX
Nonstop2h 52mAlaska Airlines
Fri 30/115:17PHX - SEA
Nonstop3h 16mAlaska Airlines
Deal found 21/12£102
Mon 30/318:45SEA - PHX
Nonstop2h 46mDelta
Tue 7/406:15PHX - SEA
Nonstop3h 09mDelta
Deal found 21/12£103
Sun 29/320:59SEA - PHX
Nonstop2h 53mAlaska Airlines
Fri 3/409:20PHX - SEA
Nonstop3h 16mAlaska Airlines
Deal found 22/12£106
Mon 19/118:54SEA - PHX
Nonstop2h 52mAlaska Airlines
Mon 26/117:12PHX - SEA
Nonstop3h 18mAlaska Airlines
Deal found 22/12£109
Wed 18/318:45SEA - PHX
Nonstop2h 46mDelta
Sat 21/308:45PHX - SEA
Nonstop3h 17mDelta
Deal found 22/12£117
Fri 27/320:59SEA - PHX
Nonstop2h 59mDelta
Sun 5/406:15PHX - SEA
Nonstop3h 09mDelta
Deal found 22/12£124

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 23 December 2025.

Fly to

Heathrow

Route

Depart

Return

Price

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Mon 23/3

08:55-11:52

Nonstop2h 57m

Phoenix Sky Harbor Intl

Fri 27/3

15:45-18:54

Nonstop3h 09m

£72

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Thu 5/2

05:00-08:45

Nonstop2h 45m

Phoenix Sky Harbor Intl

Mon 9/2

21:05-23:15

Nonstop3h 10m

£72

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Fri 30/1

19:49-23:48

Nonstop2h 59m

Phoenix Sky Harbor Intl

Sat 31/1

06:20-08:40

Nonstop3h 20m

£72

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Wed 4/3

05:15-09:00

Nonstop2h 45m

Phoenix Sky Harbor Intl

Mon 9/3

22:40-01:40

Nonstop3h 00m

£72

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Fri 20/2

19:55-23:50

Nonstop2h 55m

Phoenix Sky Harbor Intl

Thu 26/2

14:42-16:59

Nonstop3h 17m

£72

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Fri 6/2

19:49-23:48

Nonstop2h 59m

Phoenix Sky Harbor Intl

Tue 10/2

18:30-20:48

Nonstop3h 18m

£72

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Sat 21/2

11:50-15:47

Nonstop2h 57m

Phoenix Sky Harbor Intl

Fri 27/2

16:42-18:58

Nonstop3h 16m

£72

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Sun 25/1

09:55-13:50

Nonstop2h 55m

Phoenix Sky Harbor Intl

Mon 2/2

19:59-22:17

Nonstop3h 18m

£72

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Fri 30/1

19:49-23:48

Nonstop2h 59m

Phoenix Sky Harbor Intl

Wed 4/2

14:45-16:59

Nonstop3h 14m

£72

SeattlePhoenix

SEA - PHX

SEAPHX

Seattle/Tacoma Intl

Sun 25/1

19:49-23:48

Nonstop2h 59m

Phoenix Sky Harbor Intl

Sun 1/2

06:20-08:37

Nonstop3h 17m

£72

Flights are sorted by cheapest return flights first.

Deals found on 21/12

Showing 1-10 of 52 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
677 reviews
Check prices

Comfort

7.3

Overall

7.5

Entertainment

7.6

Boarding

7.7

Crew

8.1

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
677 reviews
Virgin Atlantic
7.5
Good
677 reviews
Check prices

Comfort

7.3

Overall

7.5

Entertainment

7.6

Boarding

7.7

Crew

8.1

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
7,605 reviews
Virgin Atlantic
7.5
Good
677 reviews
Check prices

Comfort

7.3

Overall

7.5

Entertainment

7.6

Boarding

7.7

Crew

8.1

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 23 December 2025.

  • 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 £233. If you're looking for a direct round-trip flight from Seattle, you can expect to pay around £381.

  • 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 52m on average. The quickest direct flight from Seattle at this time departs from Seattle (1h 02m), 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, September offers travelers the most options.

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