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Cheap flights from London to Seattle
London to Seattle flight comparison made easy
Below you can see the best fares for your route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from London to Seattle by changing tabs
Quickest
Cheapest
Lufthansa
09 Oct
LHR
07:30
London Heathrow airport
13h 25m
1 Stop
12:55
SEA
Seattle/Tacoma Intl airport
16 Oct
SEA
05:20
Seattle/Tacoma Intl airport
15h 30m
1 Stop
04:50
+1
LHR
London Heathrow airport
294 GBP
Lufthansa
09 Oct
LHR
07:30
London Heathrow airport
13h 25m
1 Stop
12:55
SEA
Seattle/Tacoma Intl airport
16 Oct
SEA
05:20
Seattle/Tacoma Intl airport
15h 30m
1 Stop
04:50
+1
LHR
London Heathrow airport
294 GBP
SWISS
17 Oct
LHR
09:40
London Heathrow airport
20h 10m
2 Stops
21:50
SEA
Seattle/Tacoma Intl airport
24 Oct
SEA
08:25
Seattle/Tacoma Intl airport
12h 25m
1 Stop
04:50
+1
LHR
London Heathrow airport
312 GBP
Delta
13 Nov
LHR
12:25
London Heathrow airport
9h 50m
14:15
SEA
Seattle/Tacoma Intl airport
04 Dec
SEA
09:50
Seattle/Tacoma Intl airport
9h 20m
03:10
+1
LHR
London Heathrow airport
317 GBP
Virgin Atlantic
31 Oct
LHR
12:25
London Heathrow airport
9h 50m
15:15
SEA
Seattle/Tacoma Intl airport
06 Nov
SEA
09:50
Seattle/Tacoma Intl airport
9h 20m
03:10
+1
LHR
London Heathrow airport
326 GBP
KLM
26 Feb
LHR
12:25
London Heathrow airport
9h 50m
14:15
SEA
Seattle/Tacoma Intl airport
07 Mar
SEA
09:50
Seattle/Tacoma Intl airport
9h 20m
03:10
+1
LHR
London Heathrow airport
327 GBP
How to get the cheapest flight from London to Seattle
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight for your trip
What is the cheapest month to fly to Seattle?
October
The cheapest time of year to fly to Seattle from London is October. The most expensive is July.
What is the cheapest day to fly to Seattle?
Tuesday
The cheapest day of the week is usually Tuesday. The most expensive is usually Sunday.
When is the cheapest time to fly to Seattle?
at midday
London to Seattle flights are approximately 8% more expensive in the afternoon than at midday
What is the cheapest airline that flies to Seattle?
Air New Zealand
Air New Zealand, Austrian Airlines, and Norwegian are the most popular carriers operating from London to Seattle
What is the cheapest route?
London Heathrow - Seattle/Tacoma Intl
Fly from London Heathrow to Seattle/Tacoma Intl for the best London - Seattle flight prices
When is the cheapest time to book a flight to Seattle?
60 days before
The cheapest time to buy a flight from London to Seattle is approximately 60 days before departure
60
Days before departure
0
Flight information for London to Seattle
Find info about flight duration, direct flights, and airports for your flight from London to Seattle
| Fastest flight time | 9h 40m | The fastest flight from London to Seattle takes 9h 40m. | |
| Direct flights | Every day | Direct flights go from London to Seattle every day. | |
| Airports in Seattle | 3 airports | There are 3 airports near Seattle: Seattle King County/Boeing (BFI), Seattle Lake Union Spb (LKE), Seattle/Tacoma Intl (SEA) |
Alternative routes for London to Seattle
Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
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Lost the lust for Seattle? Check out some flights to other destinations
*Flight prices to Seattle are based on prices for economy tickets found by momondo users during searches within the last 72 hours. These prices may no longer be available.