Flights from London to Seattle

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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
British Airways
British Airways
07 Sep
LGW
20:10
London Gatwick airport
34h 01m
2 Stops
22:11
+1
SEA
Seattle/Tacoma Intl airport
British Airways
21 Sep
SEA
14:50
Seattle/Tacoma Intl airport
28h 10m
1 Stop
03:00
+2
LGW
London Gatwick airport
352 GBP
British Airways
British Airways
07 Sep
LGW
20:10
London Gatwick airport
34h 01m
2 Stops
22:11
+1
SEA
Seattle/Tacoma Intl airport
British Airways
21 Sep
SEA
14:50
Seattle/Tacoma Intl airport
28h 10m
1 Stop
03:00
+2
LGW
London Gatwick airport
352 GBP
Virgin Atlantic
Virgin Atlantic
12 Sep
LHR
14:40
London Heathrow airport
16h 30m
1 Stop
23:10
SEA
Seattle/Tacoma Intl airport
Virgin Atlantic
22 Sep
SEA
00:30
Seattle/Tacoma Intl airport
15h 10m
1 Stop
23:40
LHR
London Heathrow airport
368 GBP
Norwegian
Norwegian
02 Oct
LGW
10:50
London Gatwick airport
9h 55m
12:45
SEA
Seattle/Tacoma Intl airport
Norwegian
09 Oct
SEA
06:45
Seattle/Tacoma Intl airport
9h 15m
00:00
+1
LGW
London Gatwick airport
377 GBP
Norwegian Air UK
Norwegian Air UK
08 Sep
LGW
11:00
London Gatwick airport
9h 55m
12:55
SEA
Seattle/Tacoma Intl airport
Norwegian Air UK
15 Sep
SEA
06:45
Seattle/Tacoma Intl airport
9h 15m
00:00
+1
LGW
London Gatwick airport
488 GBP
Iberia
Iberia
01 Oct
LHR
16:25
London Heathrow airport
9h 50m
18:15
SEA
Seattle/Tacoma Intl airport
Iberia
07 Oct
SEA
16:50
Seattle/Tacoma Intl airport
14h 55m
1 Stop
15:45
+1
LHR
London Heathrow airport
383 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
CHEAPEST MONTH TO FLY
October
The cheapest time of year to fly to Seattle from London is October. The most expensive is July.
CHEAPEST DAY TO FLY
Tuesday
The cheapest day of the week is usually Tuesday. The most expensive is usually Sunday.
CHEAPEST TIME TO FLY
at midday
London to Seattle flights are approximately 10% more expensive in the afternoon than at midday
CHEAPEST AIRLINE
Air New Zealand
Air New Zealand, Austrian Airlines, and United Airlines are the most popular carriers operating from London to Seattle
CHEAPEST ROUTE
London Heathrow - Seattle/Tacoma Intl
Fly from London Heathrow to Seattle/Tacoma Intl for the best London - Seattle flight prices
CHEAPEST TIME TO BOOK
39 days before
The cheapest time to buy a flight from London to Seattle is approximately 39 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)

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Flights to Seattle from: