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Cheap flights from Seattle-Tacoma International (SEA) to London (LON)

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The best prices from Seattle-Tacoma International to London are usually found in April or February, booked 60 days in advance, depart on a Monday or Tuesday and return on a Tuesday

+90.0%
+60.0%
+30.0%
Base
Price
$525 - $920
Temperature
48 - 73 °F
Rainfall
1 - 3 inches
Most popular in June High demand for flights, 20% potential price rise
Cheapest in April Best time to find cheap flights, 4% potential price drop
Average price $609 Price for this month
Cheapest price $525 From Seattle-Tacoma International to London

Cheap flights from Seattle-Tacoma International to London in September 2019

The best prices found for SEA to LGW flights for September
30 Sep - 23 Oct
$655pp
SEA
Seattle/Tacoma Intl
Aer Lingus
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Aer Lingus
 
1 STOP
SEA
Seattle/Tacoma Intl
30 Sep - 23 Oct
$659pp
SEA
Seattle/Tacoma Intl
Aer Lingus
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
Aer Lingus
 
1 STOP
SEA
Seattle/Tacoma Intl
30 Sep - 23 Oct
$661pp
SEA
Seattle/Tacoma Intl
Aer Lingus
 
1 STOP
LCY
London City
LCY
London City
Aer Lingus
 
1 STOP
SEA
Seattle/Tacoma Intl

Seattle-Tacoma International to London 2019 flight deals

Cheap flights to London from Seattle-Tacoma International found for this year
20 Oct - 31 Oct
$373pp
SEA
Seattle/Tacoma Intl
Lufthansa
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Lufthansa
 
1 STOP
SEA
Seattle/Tacoma Intl
21 Oct - 29 Oct
$373pp
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Air Canada
 
1 STOP
SEA
Seattle/Tacoma Intl
22 Oct - 29 Oct
$373pp
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Air Canada
 
1 STOP
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle-Tacoma International to London

Late deals on round-trip flights to London from Seattle-Tacoma International, departing today and this week
25 Sep - 9 Oct
$675pp
SEA
Seattle/Tacoma Intl
Norwegian Air UK
Non-Stop
LGW
London Gatwick
LGW
London Gatwick
Norwegian Air UK
Non-Stop
SEA
Seattle/Tacoma Intl
25 Sep - 9 Oct
$886pp
SEA
Seattle/Tacoma Intl
Aer Lingus
 
1 STOP
LCY
London City
LCY
London City
Aer Lingus
 
1 STOP
SEA
Seattle/Tacoma Intl
22 Sep - 25 Sep
$919pp
SEA
Seattle/Tacoma Intl
Aer Lingus
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
Aer Lingus
Non-Stop
SEA
Seattle/Tacoma Intl

Destination information for London

Things to know before you go. Useful info for your trip from Seattle-Tacoma International to London
Today's exchange rate
$1.00 = £0.81
Flight duration
9h 34m

Airports servicing Seattle

Airports servicing London

Stansted (STN)
City (LCY)
Gatwick (LGW)
Heathrow (LHR)
Luton (LTN)
Average temperature for September in London
68.0 °F
Avg rainfall for September in London
1.9 ″
It’s likely that during this time there will be 1 inch more rain in London than in Seattle-Tacoma International .
The weather in London is likely to be 68°F for the next ten days.
Direct flights from Seattle-Tacoma International to London are currently (7 > 0) available on Sun, Mon, Tue, Wed, Thu, Fri and Sat.
Which airlines fly from Seattle-Tacoma International to London?
Airlines such as American Airlines, KLM and Aer Lingus operate direct flights from Seattle-Tacoma International to London.
Within the past month, 1698 users have taken a look at flights from Seattle-Tacoma International to London.
How many flights depart from Seattle/Tacoma Intl to London on average per day?
Per day, 22 flights depart from Seattle/Tacoma Intl to London on average.
Afternoon (Noon - 6pm) - 77% of flight departures
Evening (6pm - Midnight) - 23% of flight departures
How long does the flight from Seattle/Tacoma Intl to London take?
For nonstop trips expect to fly for about 10 hours. The travel distance is approximately 3,006 miles.