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Cheap flights from Seattle to England from C$ 364

SEA — LHR
23 Oct — 30 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

Sun 4/107:00 a.m. -
1 stop15h 45m
Sun 11/107:25 a.m. -
1 stop17h 34m
Deal found 22/9C$ 1,083
Wed 4/113:25 p.m. -
1 stop16h 40m
Wed 11/1112:40 p.m. -
1 stop19h 17m
Deal found 20/9C$ 1,084
Sun 25/105:45 p.m. -
Nonstop9h 55m
Sat 7/116:30 a.m. -
1 stop13h 17m
Deal found 22/9C$ 1,084
Fri 25/95:30 p.m. -
Nonstop9h 50m
Wed 7/106:30 a.m. -
1 stop13h 22m
Deal found 19/9C$ 1,086
Fri 25/97:15 a.m. -
1 stop15h 05m
Fri 2/106:15 a.m. -
1 stop13h 00m
Deal found 19/9C$ 1,087
Wed 2/124:50 p.m. -
Nonstop9h 50m
Tue 8/126:30 a.m. -
1 stop13h 20m
Deal found 23/9C$ 1,089
Tue 8/124:50 p.m. -
Nonstop9h 50m
Wed 13/16:30 a.m. -
1 stop13h 20m
Deal found 23/9C$ 1,092
Sat 24/103:40 p.m. -
1 stop15h 00m
Fri 6/1111:55 a.m. -
1 stop13h 05m
Deal found 22/9C$ 1,093
Mon 5/107:15 p.m. -
2 stops53h 20m
Mon 12/1010:15 a.m. -
2 stops20h 32m
Deal found 22/9C$ 1,093
Sat 7/117:45 a.m. -
2 stops29h 15m
Tue 1/1211:35 a.m. -
2 stops20h 09m
Deal found 22/9C$ 1,094
Sat 26/99:50 p.m. -
Nonstop9h 45m
Thu 8/105:45 p.m. -
Nonstop10h 29m
Deal found 18/9C$ 1,096
Sun 13/1212:50 p.m. -
1 stop12h 50m
Wed 13/111:35 a.m. -
2 stops19h 56m
Deal found 22/9C$ 1,097

Find flight deals from Seattle to England

Round-trip from

C$ 868

One-way from

C$ 364

Popular in

June

Cheapest in

January

Average price

C$ 1,295

Good round-trip deal

C$ 1,097 or less

Good one-way deal

C$ 586 or less
Icelandair
  • Icelandair
  • 11/1-15/1
  • 2 total stops
  • 25h 35m total
  • Seattle to England
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Icelandair
  • Icelandair
  • 20/10-31/12
  • 1 total stop
  • 32h 40m total
  • Seattle to England
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (C$ 368 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 58 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 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

SeattleManchester

SEA Seattle/Tacoma Intl - MAN Manchester

SEAMAN

Seattle/Tacoma Intl

Tue 20/10

7:00 p.m.-11:40 a.m.

1 stop32h 40m

Manchester

Wed 31/12

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

Nonstop0h 00m

C$ 365

SeattleManchester

SEA Seattle/Tacoma Intl - MAN Manchester

SEAMAN

Seattle/Tacoma Intl

Fri 1/1

11:44 p.m.-9:00 a.m.

2 stops49h 16m

Manchester

Wed 31/12

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

Nonstop0h 00m

C$ 521

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Sat 7/11

11:17 p.m.-8:35 p.m.

1 stop13h 18m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 523

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Sun 1/11

4:50 p.m.-10:40 a.m.

Nonstop9h 50m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 525
Quickest round-trip

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Wed 21/10

8:20 p.m.-1:45 p.m.

Nonstop9h 25m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 525

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Mon 19/10

5:30 p.m.-11:20 a.m.

Nonstop9h 50m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 525

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Wed 21/10

5:00 a.m.-6:45 a.m.

2 stops17h 45m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 525

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Wed 28/10

3:15 p.m.-11:50 a.m.

1 stop13h 35m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 525

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Wed 11/11

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$ 528

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Mon 28/9

9:40 p.m.-8:45 p.m.

1 stop15h 05m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 532

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/9

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$ 940). 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 Tuesday (25 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (24 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$ 1,027 and C$ 1,439 in October.
The cheapest round-trip price found within the last 5 days was C$ 1,083 on United Airlines (4 Oct-11 Oct).

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 64 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
12,962 reviews
Check prices

Boarding

8.1

Comfort

7.8

Overall

7.9

Food

7.0

Entertainment

7.0

Crew

8.5

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
12,962 reviews
Alaska Airlines
7.9
Good
12,962 reviews
Check prices

Boarding

8.1

Comfort

7.8

Overall

7.9

Food

7.0

Entertainment

7.0

Crew

8.5

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
694 reviews
Alaska Airlines
7.9
Good
12,962 reviews
Check prices

Boarding

8.1

Comfort

7.8

Overall

7.9

Food

7.0

Entertainment

7.0

Crew

8.5

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
1,788 reviews
Alaska Airlines
7.9
Good
12,962 reviews
Check prices

Boarding

8.1

Comfort

7.8

Overall

7.9

Food

7.0

Entertainment

7.0

Crew

8.5

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
6.9
Okay
749 reviews
Alaska Airlines
7.9
Good
12,962 reviews
Check prices

Boarding

8.1

Comfort

7.8

Overall

7.9

Food

7.0

Entertainment

7.0

Crew

8.5

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$ 868, Icelandair can have you in England from Seattle in 12h 10m. The distance from Seattle to England is about 7456 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 - Leeds/Bradford or Seattle/Tacoma Intl - London Gatwick, Seattle/Tacoma Intl - London Heathrow 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$ 531. While the most popular route (Seattle/Tacoma Intl - London Heathrow) can be booked for C$ 1,115 on average, our data indicates C$ 1,709 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$ 940). 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$ 708AverageC$ 881FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapestC$ 997AverageC$ 1,230FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Seattle to England. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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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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