Cheap flights from London to Seattle

Depart
Return
Any month
Compare vs. momondo |

Flight information for London to Seattle (LON to 03A)

Find info about flight duration, direct flights, and airports for your flight from London to Seattle
Fastest flight time 9h 50m The fastest flight from London to Seattle takes 9h 50m.
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)

How to get the cheapest flight ticket 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 ticket 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. Most expensive is July
What is the cheapest day to fly to Seattle?
Tuesday
The cheapest day of the week is typically Tuesday. The most expensive is typically Monday
When is the cheapest time to fly to Seattle?
at noon
London to Seattle flights are approximately 15% more expensive in the evening than at noon
What is the cheapest airline that flies to Seattle?
easyJet
easyJet, EL AL, and Air France 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 to departure
60
Days before departure
0

Easily compare round-trip flights from London to Seattle

Below you can see the best fares for your round-trip flight 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
19 Mar
6:30 am
LHR
London Heathrow airport
13h 50m
1 Stop
SEA
1:20 pm
Seattle/Tacoma Intl airport
Lufthansa
27 Mar
12:50 am
SEA
Seattle/Tacoma Intl airport
20h 30m
1 Stop
LHR
4:20 am
+1
London Heathrow airport
$330
Virgin Atlantic
Virgin Atlantic
14 Feb
9:25 am
LHR
London Heathrow airport
16h 55m
1 Stop
SEA
6:20 pm
Seattle/Tacoma Intl airport
Virgin Atlantic
16 Feb
2:55 am
SEA
Seattle/Tacoma Intl airport
12h 35m
1 Stop
LHR
11:30 pm
London Heathrow airport
$341
Austrian Airlines
Austrian Airlines
28 Feb
6:00 am
LHR
London Heathrow airport
20h 44m
2 Stops
SEA
6:44 pm
Seattle/Tacoma Intl airport
Austrian Airlines
01 Mar
11:00 pm
SEA
Seattle/Tacoma Intl airport
16h 55m
1 Stop
LHR
11:55 pm
+1
London Heathrow airport
$353
Norwegian Air UK
Norwegian Air UK
24 Apr
10:50 am
LGW
London Gatwick airport
9h 55m
SEA
12:45 pm
Seattle/Tacoma Intl airport
Norwegian Air UK
26 Apr
6:45 am
SEA
Seattle/Tacoma Intl airport
9h 15m
LGW
12:00 am
+1
London Gatwick airport
$496
Finnair
Finnair
13 Mar
9:40 am
LHR
London Heathrow airport
9h 55m
SEA
12:35 pm
Seattle/Tacoma Intl airport
Finnair
30 Mar
6:50 am
SEA
Seattle/Tacoma Intl airport
9h 20m
LHR
12:10 am
+1
London Heathrow airport
$364
British Airways
British Airways
21 Feb
9:40 am
LHR
London Heathrow airport
9h 55m
SEA
11:35 am
Seattle/Tacoma Intl airport
British Airways
24 Feb
5:33 am
SEA
Seattle/Tacoma Intl airport
14h 32m
1 Stop
LHR
4:05 am
+1
London Heathrow airport
$364

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 19m
Cheapest price
$383
Birmingham to Seattle
Fastest flight time
14h 10m
Cheapest price
$462
Birmingham to Portland
Fastest flight time
13h 24m
Cheapest price
$527

Flights from London to:

Flights to Seattle from:

*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.