Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Seattle to England from £174

SEA — LHR
23 Sep — 30 Sep1
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 10/1015:55 -
1 stop25h 05m
Thu 15/1015:00 -
2 stops50h 42m
Deal found 21/8£432
Mon 5/1015:40 -
1 stop12h 00m
Mon 12/1022:35 -
2 stops45h 09m
Deal found 21/8£458
Sun 4/1019:00 -
1 stop32h 40m
Sun 18/1022:25 -
2 stops31h 34m
Deal found 21/8£469
Sat 17/1019:35 -
1 stop30h 15m
Sun 25/1006:00 -
2 stops33h 37m
Deal found 21/8£476
Sat 3/1015:55 -
1 stop16h 05m
Sat 10/1006:40 -
2 stops15h 05m
Deal found 19/8£477
Fri 30/1015:35 -
2 stops18h 55m
Sat 7/1105:50 -
2 stops19h 10m
Deal found 19/8£478
Wed 4/1107:45 -
3 stops27h 45m
Sun 15/1109:15 -
3 stops34h 45m
Deal found 21/8£478
Tue 6/1008:00 -
3 stops27h 55m
Wed 14/1018:05 -
2 stops30h 54m
Deal found 23/8£478
Sat 3/1015:55 -
1 stop31h 45m
Sat 10/1016:15 -
2 stops26h 20m
Deal found 21/8£479
Wed 4/1114:50 -
2 stops22h 55m
Wed 11/1107:00 -
2 stops21h 59m
Deal found 22/8£479
Sun 27/915:55 -
1 stop15h 45m
Fri 9/1006:20 -
1 stop15h 25m
Deal found 21/8£480
Sun 27/915:40 -
3 stops33h 30m
Tue 6/1011:00 -
2 stops17h 40m
Deal found 20/8£480

Find flight deals from Seattle to England

Round-trip from

£432

One-way from

£174

Popular in

June

Cheapest in

January

Average price

£648

Good round-trip deal

£662 or less

Good one-way deal

£264 or less
10/10-15/10
  • 10/10-15/10
  • 3 total stops
  • 75h 47m total
  • Seattle to England
Search Deals
4/10
  • 4/10
  • 2 total stops
  • 21h 25m 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
Search Deals
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

Tue 6/10

18:05-20:10

2 stops18h 05m

London Luton

Sun 11/10

20:50-16:10

2 stops27h 20m

£527

SeattleBristol

SEA Seattle/Tacoma Intl - BRS Bristol

SEABRS

Seattle/Tacoma Intl

Sat 3/10

15:55-08:50

2 stops32h 55m

Bristol

Sat 10/10

17:40-13:45

2 stops28h 05m

£555

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Thu 17/9

18:05-00:50

2 stops22h 45m

London Luton

Thu 24/9

17:30-16:00

2 stops30h 30m

£557

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Sun 27/9

17:40-19:55

2 stops18h 15m

London Luton

Mon 12/10

20:35-15:40

2 stops27h 05m

£565

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Sat 17/10

19:00-14:35

1 stop11h 35m

London Gatwick

Fri 30/10

11:55-18:00

1 stop13h 05m

£580

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Fri 9/10

15:40-14:40

1 stop15h 00m

London Gatwick

Sun 18/10

15:40-17:55

1 stop34h 15m

£581

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Sun 18/10

15:40-11:55

1 stop12h 15m

London Heathrow

Tue 10/11

20:35-17:00

1 stop28h 25m

£582

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Sun 13/9

15:55-19:55

2 stops20h 00m

London Heathrow

Sat 19/9

06:40-13:45

1 stop15h 05m

£585

SeattleManchester

SEA Seattle/Tacoma Intl - MAN Manchester

SEAMAN

Seattle/Tacoma Intl

Thu 15/10

19:00-11:40

1 stop32h 40m

Manchester

Fri 6/11

11:35-17:00

1 stop13h 25m

£593

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Sun 4/10

17:40-18:50

1 stop17h 10m

London Gatwick

Wed 14/10

10:20-15:40

1 stop13h 20m

£601

Flights are sorted by cheapest return flights first.

Deals found on 21/8

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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 £478). Flying from Seattle to England in June is currently the most expensive (average of £885). 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 Tuesday (25 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (19 on average).

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

Airfare is below average for this route at the moment.
Seattle to England flights typically cost between £523 and £735 in October.
The cheapest return price found within the last 5 days was £477 on Scandinavian Airlines (3 Oct–10 Oct).

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
12,840 reviews
Check prices

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Overall

7.9

Entertainment

7.0

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
12,840 reviews
Alaska Airlines
7.9
Good
12,840 reviews
Check prices

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Overall

7.9

Entertainment

7.0

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
1,565 reviews
Alaska Airlines
7.9
Good
12,840 reviews
Check prices

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Overall

7.9

Entertainment

7.0

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
12,840 reviews
Check prices

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Overall

7.9

Entertainment

7.0

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
8,187 reviews
Alaska Airlines
7.9
Good
12,840 reviews
Check prices

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Overall

7.9

Entertainment

7.0

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 11h 35m. 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 £125. 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 £238. On average you can expect to pay £516. The most popular route, (Seattle/Tacoma Intl - London Heathrow), can usually be booked for £410.

  • 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 £478). Flying from Seattle to England in June is currently the most expensive (average of £885). 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£453Average£670FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Alaska AirlinesCheapest£483Average£720FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Virgin AtlanticCheapest£490Average£614FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

Fly with Cheapflights

How does Cheapflights help users find flights from Seattle to England?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to England from Seattle today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Seattle to England?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to England from Seattle.

Can Cheapflights find flights from Seattle to England with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Seattle to England flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Seattle to England become cheaper?

Not ready to book yet? You can track prices for flights from Seattle to England on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.