Cheap 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
Lufthansa
Lufthansa
15 Nov
LHR
06:30
London Heathrow airport
16h 13m
2 Stops
14:43
SEA
Seattle/Tacoma Intl airport
Lufthansa
23 Nov
SEA
00:00
Seattle/Tacoma Intl airport
19h 20m
1 Stop
03:20
+1
LHR
London Heathrow airport
316 GBP
Lufthansa
Lufthansa
15 Nov
LHR
06:30
London Heathrow airport
16h 13m
2 Stops
14:43
SEA
Seattle/Tacoma Intl airport
Lufthansa
23 Nov
SEA
00:00
Seattle/Tacoma Intl airport
19h 20m
1 Stop
03:20
+1
LHR
London Heathrow airport
316 GBP
Virgin Atlantic
Virgin Atlantic
09 Jan
LHR
12:25
London Heathrow airport
9h 50m
14:15
SEA
Seattle/Tacoma Intl airport
Virgin Atlantic
16 Jan
SEA
09:50
Seattle/Tacoma Intl airport
9h 20m
03:10
+1
LHR
London Heathrow airport
325 GBP
KLM
KLM
10 Oct
LHR
12:30
London Heathrow airport
9h 40m
14:10
SEA
Seattle/Tacoma Intl airport
KLM
18 Oct
SEA
08:20
Seattle/Tacoma Intl airport
9h 25m
01:45
+1
LHR
London Heathrow airport
346 GBP
Air France
Air France
22 Oct
LHR
12:30
London Heathrow airport
9h 40m
14:10
SEA
Seattle/Tacoma Intl airport
Air France
23 Oct
SEA
08:20
Seattle/Tacoma Intl airport
9h 25m
01:45
+1
LHR
London Heathrow airport
347 GBP
Virgin Atlantic
Virgin Atlantic
09 Jan
LHR
12:25
London Heathrow airport
9h 50m
14:15
SEA
Seattle/Tacoma Intl airport
Virgin Atlantic
16 Jan
SEA
09:50
Seattle/Tacoma Intl airport
9h 20m
03:10
+1
LHR
London Heathrow airport
325 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 109% 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 United Airlines 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
London to Portland
Fastest flight time
10h 43m
Cheapest price
307 GBP
Manchester to Seattle
Fastest flight time
9h 30m
Cheapest price
414 GBP
London to Portland
Fastest flight time
12h 45m
Cheapest price
426 GBP
Birmingham to Seattle
Fastest flight time
13h 25m
Cheapest price
438 GBP
Birmingham to Portland
Fastest flight time
13h 17m
Cheapest price
512 GBP
Manchester to Portland
Fastest flight time
12h 00m
Cheapest price
519 GBP
London to Portland
Fastest flight time
16h 30m
Cheapest price
568 GBP
London to Portland
Fastest flight time
16h 55m
Cheapest price
570 GBP
London to Portland
Fastest flight time
16h 16m
Cheapest price
593 GBP
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