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Cheap flights from Seattle to London
Seattle to London 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 Seattle to London by changing tabs
Quickest
Cheapest
Icelandair
13 Jan
06:30
SEA
Seattle/Tacoma Intl airport
12h 20m
1 Stop
LHR
02:50
+1
London Heathrow airport
23 Jan
20:35
LHR
London Heathrow airport
28h 25m
1 Stop
SEA
17:00
+1
Seattle/Tacoma Intl airport
296 GBP
Icelandair
14 Jan
06:30
SEA
Seattle/Tacoma Intl airport
12h 20m
1 Stop
LGW
02:50
+1
London Gatwick airport
24 Jan
12:00
LGW
London Gatwick airport
13h 00m
1 Stop
SEA
17:00
Seattle/Tacoma Intl airport
301 GBP
Delta
15 Jan
09:50
SEA
Seattle/Tacoma Intl airport
9h 20m
LHR
03:10
+1
London Heathrow airport
22 Jan
06:30
LHR
London Heathrow airport
12h 54m
1 Stop
SEA
11:24
Seattle/Tacoma Intl airport
309 GBP
Virgin Atlantic
03 Mar
09:50
SEA
Seattle/Tacoma Intl airport
9h 20m
LHR
03:10
+1
London Heathrow airport
13 Mar
12:25
LHR
London Heathrow airport
9h 50m
SEA
15:15
Seattle/Tacoma Intl airport
316 GBP
Norwegian Air UK
03 May
06:45
SEA
Seattle/Tacoma Intl airport
9h 15m
LGW
00:00
+1
London Gatwick airport
13 May
10:50
LGW
London Gatwick airport
9h 55m
SEA
12:45
Seattle/Tacoma Intl airport
323 GBP
Delta
15 Jan
09:50
SEA
Seattle/Tacoma Intl airport
9h 20m
LHR
03:10
+1
London Heathrow airport
22 Jan
06:30
LHR
London Heathrow airport
12h 54m
1 Stop
SEA
11:24
Seattle/Tacoma Intl airport
309 GBP
How to get the cheapest flight from Seattle to London
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 London?
October
The cheapest time of year to fly to London from Seattle is October. The most expensive is June.
What is the cheapest day to fly to London?
Wednesday
The cheapest day of the week is usually Wednesday. The most expensive is usually Friday.
When is the cheapest time to fly to London?
in the morning
Seattle to London flights are approximately 15% more expensive in the evening than in the morning
What is the cheapest airline that flies to London?
easyJet
easyJet, SWISS, and Brussels Airlines are the most popular carriers operating from Seattle to London
What is the cheapest route?
Seattle/Tacoma Intl - London Heathrow
Fly from Seattle/Tacoma Intl to London Heathrow for the best Seattle - London flight prices
When is the cheapest time to book a flight to London?
60 days before
The cheapest time to buy a flight from Seattle to London is approximately 60 days before departure
60
Days before departure
0
Flight information for Seattle to London
Find info about flight duration, direct flights, and airports for your flight from Seattle to London
| Fastest flight time | 9h 20m | The fastest flight from Seattle to London takes 9h 20m. | |
| Direct flights | Every day | Direct flights go from Seattle to London every day. | |
| Airports in London | 6 airports | There are 6 airports near London: London City (LCY), London Heathrow (LHR), London Luton (LTN), London Stansted (STN), London Gatwick (LGW), London Southend (SEN) |
Alternative routes for Seattle to London
Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Flights from Seattle to:
Flights to London from:
Flights to other cities in United Kingdom
Lost the lust for London? Check out some flights to other cities in United Kingdom
Flights to other destinations
Lost the lust for London? Check out some flights to other destinations
*Flight prices to London 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.