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Cheap flights from Seattle to England from £175

SEA — LHR
29 Sep — 6 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to England

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to England

Fri 4/1207:45 -
2 stops24h 50m
Sat 12/1205:50 -
3 stops35h 37m
Deal found 27/8£488
Tue 22/915:55 -
1 stop21h 05m
Thu 8/1006:55 -
2 stops38h 50m
Deal found 25/8£500
Fri 9/1019:00 -
2 stops21h 55m
Fri 16/1006:00 -
2 stops22h 40m
Deal found 25/8£510
Sun 11/1015:40 -
2 stops20h 05m
Sun 18/1021:25 -
3 stops28h 30m
Deal found 27/8£515
Tue 6/1018:05 -
3 stops34h 35m
Thu 15/1017:25 -
2 stops30h 35m
Deal found 26/8£516
Fri 25/915:55 -
1 stop24h 25m
Fri 2/1019:40 -
2 stops50h 05m
Deal found 28/8£522
Thu 8/1019:00 -
2 stops17h 30m
Tue 20/1015:10 -
3 stops34h 45m
Deal found 26/8£532
Sat 31/1014:50 -
2 stops24h 35m
Sat 7/1119:10 -
3 stops34h 47m
Deal found 26/8£533
Fri 25/915:55 -
2 stops49h 00m
Fri 2/1008:10 -
1 stop13h 35m
Deal found 25/8£538
Fri 25/915:55 -
1 stop15h 00m
Fri 2/1007:05 -
1 stop14h 40m
Deal found 25/8£539
Fri 2/1015:55 -
1 stop15h 00m
Fri 9/1020:50 -
2 stops24h 55m
Deal found 25/8£540
Sun 8/1114:35 -
2 stops18h 20m
Tue 15/615:40 -
1 stop34h 15m
Deal found 25/8£542

Find flight deals from Seattle to England

Round-trip from

£488

One-way from

£175

Popular in

June

Cheapest in

January

Average price

£656

Good round-trip deal

£668 or less

Good one-way deal

£266 or less
4/12-12/12
  • 4/12-12/12
  • 5 total stops
  • 60h 27m total
  • Seattle to England
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2/10
  • 2/10
  • 1 total stop
  • 22h 55m total
  • Seattle to England
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£110 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to England.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to England.
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Seattle to England that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Mon 5/10

05:50-11:00

3 stops21h 10m

London Luton

Tue 13/10

05:40-16:59

2 stops19h 19m

£555

SeattleBirmingham

SEA Seattle/Tacoma Intl - BHX Birmingham

SEABHX

Seattle/Tacoma Intl

Fri 9/10

19:00-13:40

3 stops34h 40m

Birmingham

Fri 16/10

06:00-20:40

2 stops22h 40m

£564

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Sun 18/10

15:40-21:40

2 stops22h 00m

London Luton

Tue 3/11

07:45-17:00

2 stops17h 15m

£570

SeattleManchester

SEA Seattle/Tacoma Intl - MAN Manchester

SEAMAN

Seattle/Tacoma Intl

Mon 11/1

22:45-09:00

2 stops50h 15m

Manchester

Fri 15/1

06:10-21:05

2 stops22h 55m

£612

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Thu 24/9

19:00-21:50

2 stops18h 50m

London Luton

Thu 1/10

06:00-20:40

2 stops22h 40m

£615

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Wed 20/1

07:20-16:00

2 stops24h 40m

London Heathrow

Wed 27/1

18:40-22:20

2 stops35h 40m

£626

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Sun 1/11

10:39-17:40

2 stops23h 01m

London Heathrow

Thu 12/11

06:40-22:55

2 stops24h 15m

£635

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Sun 17/1

07:20-16:00

2 stops24h 40m

London Heathrow

Fri 29/1

10:20-22:20

2 stops20h 00m

£636

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Wed 20/1

15:25-15:45

1 stop16h 20m

London Gatwick

Wed 27/1

10:00-15:13

1 stop13h 13m

£643

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Wed 4/11

14:30-18:30

2 stops20h 00m

London Heathrow

Thu 12/11

06:40-22:55

2 stops24h 15m

£657

Flights are sorted by cheapest return flights first.

Deals found on 27/8

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Seattle to England

Have a flexible travel schedule? Discover the best time to fly to England from Seattle with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Seattle to England

What is the cheapest month to book a flight from Seattle to England?

Currently, January is the cheapest month in which you can book a flight from Seattle to England (average of £482). Flying from Seattle to England in June is currently the most expensive (average of £894). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to ENG?

When flying from Seattle to England, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Seattle to England

The most flights from SEA to GBENG are scheduled on a Friday (25 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (14 on average).

How much does it cost for a return flight from Seattle to England?

Airfare is typical for this route at the moment.
Seattle to England flights typically cost between £531 and £753 in October.
The cheapest return price found within the last 5 days was £543 on Icelandair (19 Oct–4 Nov).

How far ahead should I book a flight from Seattle to England?

The best time to book flights from Seattle to England is 64 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing England

Read through reviews of airlines operating flights from Seattle to England, such as Alaska Airlines,KLM, andVirgin Atlantic. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,859 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Overall

7.9

Crew

8.5

Food

7.0

Comfort

7.8

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
12,859 reviews
Alaska Airlines
7.9
Good
12,859 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Overall

7.9

Crew

8.5

Food

7.0

Comfort

7.8

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
KLM
7.8
Good
1,568 reviews
Alaska Airlines
7.9
Good
12,859 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Overall

7.9

Crew

8.5

Food

7.0

Comfort

7.8

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
695 reviews
Alaska Airlines
7.9
Good
12,859 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Overall

7.9

Crew

8.5

Food

7.0

Comfort

7.8

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
8,196 reviews
Alaska Airlines
7.9
Good
12,859 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Overall

7.9

Crew

8.5

Food

7.0

Comfort

7.8

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

  • What airport do you fly from for flights from Seattle to England?

    For a flight from Seattle to England, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city.

  • How long is the flight from Seattle to England?

    Departing from Seattle to England will take you 16h 20m. Airlines will cover a distance of 4807 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Seattle to England one-way?

    The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as £126. However, be on the lookout for offers from Virgin Atlantic and Alaska Airlines, as they are both options that can get you from Seattle to England for a low price.

  • What are the most popular routes from Seattle to England?

    The most popular flight routes from Seattle to England are Seattle/Tacoma Intl - London Heathrow, Seattle/Tacoma Intl - London Gatwick and Seattle/Tacoma Intl - London Stansted.

  • What are the most reliable airlines from Seattle to England?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to England on time: SAUDIA (97%), Scandinavian Airlines (90%), KLM (88%).

  • What are the cheapest flights from Seattle to England?

    The cheapest flight price from Seattle to England is £240. On average you can expect to pay £1,118. The most popular route, (Seattle/Tacoma Intl - London Heathrow), can usually be booked for £431.

  • Can I find deals for flights from Seattle to England that include hotel bookings?

    Yes. In addition to deals on Seattle to England flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Seattle to England?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to England.

  • Can I find deals for business class flights from Seattle to England?

    Yes. Cheapflights offers flight deals from Seattle to England by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to England?

    Currently, January is the cheapest month in which you can book a flight from Seattle to England (average of £482). Flying from Seattle to England in June is currently the most expensive (average of £894). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Seattle to England

AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£457Average£651FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Alaska AirlinesCheapest£487Average£725FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Virgin AtlanticCheapest£494Average£619FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

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