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Cheap flights from Seattle to England from C$ 462

SEA — LHR
24 Nov — 1 Dec1
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

Sat 12/122:35 p.m. -
1 stop20h 55m
Thu 24/1212:15 p.m. -
1 stop12h 45m
Deal found 21/10C$ 1,054
Sat 28/112:35 p.m. -
1 stop12h 15m
Wed 9/1212:15 p.m. -
1 stop12h 45m
Deal found 22/10C$ 1,056
Thu 12/112:35 p.m. -
1 stop12h 15m
Tue 1/1212:15 p.m. -
1 stop12h 45m
Deal found 22/10C$ 1,059
Fri 4/1212:31 p.m. -
2 stops36h 49m
Mon 7/126:40 a.m. -
2 stops21h 44m
Deal found 22/10C$ 1,073
Tue 8/122:35 p.m. -
1 stop20h 55m
Tue 15/1212:15 p.m. -
1 stop12h 45m
Deal found 23/10C$ 1,074
Sun 29/112:35 p.m. -
1 stop20h 55m
Tue 8/1212:15 p.m. -
1 stop12h 45m
Deal found 23/10C$ 1,075
Wed 30/122:35 p.m. -
1 stop12h 20m
Thu 25/32:40 p.m. -
1 stop34h 15m
Deal found 24/10C$ 1,077
Sun 29/112:35 p.m. -
1 stop12h 15m
Mon 7/128:35 p.m. -
1 stop28h 25m
Deal found 23/10C$ 1,078
Sun 15/112:35 p.m. -
1 stop20h 55m
Tue 8/1212:15 p.m. -
1 stop12h 45m
Deal found 21/10C$ 1,080
Thu 12/112:35 p.m. -
1 stop20h 55m
Sat 5/1212:15 p.m. -
1 stop12h 45m
Deal found 22/10C$ 1,081
Sun 15/112:35 p.m. -
1 stop12h 15m
Mon 7/128:35 p.m. -
1 stop28h 25m
Deal found 21/10C$ 1,082
Mon 30/112:35 p.m. -
1 stop12h 15m
Sat 12/1212:15 p.m. -
1 stop12h 45m
Deal found 22/10C$ 1,101

Find flight deals from Seattle to England

Round-trip from

C$ 1,047

One-way from

C$ 462

Popular in

June

Cheapest in

January

Average price

C$ 1,253

Good round-trip deal

C$ 1,437 or less

Good one-way deal

C$ 795 or less
KLM
  • KLM
  • 11/4-21/4
  • Nonstop
  • 20h 05m total
  • Seattle to England
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United Airlines
  • United Airlines
  • 6/2-31/12
  • 1 total stop
  • 32h 45m total
  • Seattle to England
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 330 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 55 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to England.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to England.
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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 round-trip

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Tue 26/1

8:30 a.m.-4:20 p.m.

3 stops23h 50m

London Heathrow

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 469

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Sat 27/2

6:40 p.m.-12:20 p.m.

Nonstop9h 40m

London Heathrow

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 487

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Thu 28/1

4:05 p.m.-3:45 p.m.

1 stop15h 40m

London Gatwick

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 517

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Fri 22/1

3:25 p.m.-3:45 p.m.

1 stop16h 20m

London Gatwick

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 517

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Thu 28/1

7:15 a.m.-3:45 p.m.

2 stops24h 30m

London Gatwick

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 524

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Sat 6/2

4:05 p.m.-3:45 p.m.

1 stop15h 40m

London Gatwick

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 531

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Sat 6/2

7:00 a.m.-5:50 p.m.

2 stops26h 50m

London Gatwick

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 539

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Tue 16/2

5:07 a.m.-9:10 a.m.

3 stops20h 03m

London Heathrow

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 811

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Tue 26/1

7:05 p.m.-9:10 a.m.

1 stop30h 05m

London Gatwick

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 812

SeattleManchester

SEA Seattle/Tacoma Intl - MAN Manchester

SEAMAN

Seattle/Tacoma Intl

Wed 16/12

10:09 a.m.-10:45 a.m.

2 stops16h 36m

Manchester

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 847

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/10

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 round-trip 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 C$ 976). Flying from Seattle to England in June is currently the most expensive (average of C$ 1,704). 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?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to England as you normally would.

Weekly flight availability from Seattle to England

The most flights from SEA to GBENG are scheduled on a Saturday (23 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

How much does it cost to fly round-trip from Seattle to England?

Airfare is typical for this route at the moment.
Seattle to England flights typically cost between C$ 1,015 and C$ 1,496 in April.
The cheapest round-trip price found within the last 5 days was C$ 1,047 on KLM (11 Apr-21 Apr).

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

The price you pay for your flight from Seattle to England may vary depending on when you book. For the best chance of a lower fare, look to book 55 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing England

Read through reviews of airlines operating flights from Seattle to England, such as Alaska Airlines,Virgin Atlantic, andAer Lingus. 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
13,123 reviews
Check prices

Overall

7.9

Crew

8.5

Food

7.0

Comfort

7.8

Entertainment

7.0

Boarding

8.1

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
13,123 reviews
Alaska Airlines
7.9
Good
13,123 reviews
Check prices

Overall

7.9

Crew

8.5

Food

7.0

Comfort

7.8

Entertainment

7.0

Boarding

8.1

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
7.5
Good
697 reviews
Alaska Airlines
7.9
Good
13,123 reviews
Check prices

Overall

7.9

Crew

8.5

Food

7.0

Comfort

7.8

Entertainment

7.0

Boarding

8.1

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
Aer Lingus
7.3
Good
1,857 reviews
Alaska Airlines
7.9
Good
13,123 reviews
Check prices

Overall

7.9

Crew

8.5

Food

7.0

Comfort

7.8

Entertainment

7.0

Boarding

8.1

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
Icelandair
7.0
Good
764 reviews
Alaska Airlines
7.9
Good
13,123 reviews
Check prices

Overall

7.9

Crew

8.5

Food

7.0

Comfort

7.8

Entertainment

7.0

Boarding

8.1

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?

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to England. It is only a 18.4 km journey to Seattle/Tacoma Intl (SEA) from Seattle’s city centre.

  • How long is the flight from Seattle to England?

    For as low as C$ 1,141, Icelandair can have you in England from Seattle in 9h 25m. The distance from Seattle to England is about 7697 km. This flight may include one or multiple stops.

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

    While some choose either Seattle/Tacoma Intl - London Heathrow or Seattle/Tacoma Intl - London Gatwick, Seattle/Tacoma Intl - Leeds/Bradford is the most popular route from Seattle to England.

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

    Consider Scandinavian Airlines (95%), KLM (94%) or SAUDIA (94%) when booking your flight. These represent the most reliable airlines when flying from Seattle to England.

  • What are the cheapest flights from Seattle to England?

    Looking at all options, your cheapest flight can be booked for C$ 453. While the most popular route (Seattle/Tacoma Intl - Leeds/Bradford) can be booked for C$ 1,081 on average, our data indicates C$ 1,292 when flying from Seattle to England.

  • 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 vacation 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 C$ 976). Flying from Seattle to England in June is currently the most expensive (average of C$ 1,704). 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

Alternative routes for Seattle to England

Seattle to Heathrow flights
Seattle to Gatwick flights
Seattle to Glasgow Intl flights
Seattle to Manchester flights

Top 2 airlines flying from Seattle to England

AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapestC$ 661AverageC$ 917FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapestC$ 994AverageC$ 1,226FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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Need flexible booking options for your flight to England from Seattle? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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