Find Deals on Flights from Seattle/Tacoma Intl to London (SEA - LON)

Depart
Return
1 adult
Adults
18+
Youths
12-17
Children
2-11
Seat infants
under 2
Lap infants
under 2
The price shown for each flight will be the average for all passengers, including any infants.
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Flexible dates? Here are the best fares found in the past 48 hours...

Book cheap flights from Seattle/Tacoma Intl to London

(Round-trip)
Depart: Wed 14 Dec 2016 Return: Thu 5 Jan 2017 Trip spans 23 days
£385
Select
Virgin Atlantic
Virgin Atlantic
SEA
LGW
17h 40m
1 stop
LGW
SEA
19h 15m
1 stop
Depart: Thu 22 Dec 2016 Return: Fri 27 Jan 2017 Trip spans 37 days
£456
Select
Major Airline
Major Airline
SEA
LHR
9h 20m
nonstop
LHR
SEA
9h 50m
nonstop
Depart: Fri 23 Dec 2016 Return: Sat 28 Jan 2017 Trip spans 37 days
£456
Select
Delta
Delta
SEA
LHR
9h 56m
nonstop
LHR
SEA
10h 25m
nonstop
Depart: Sun 9 Apr 2017 Return: Mon 24 Apr 2017 Trip spans 16 days
£502
Select
Lufthansa
Lufthansa
SEA
LCY
20h 40m
1 stop
LCY
SEA
17h 49m
2 stops
Depart: Wed 26 Oct 2016 Return: Wed 2 Nov 2016 Trip spans 8 days
£517
Select
KLM
KLM
SEA
LCY
16h 25m
2 stops
LCY
SEA
19h 44m
2 stops
Depart: Thu 19 Jan 2017 Return: Fri 27 Jan 2017 Trip spans 9 days
£526
Select
Icelandair
Icelandair
SEA
LGW
11h 45m
1 stop
LGW
SEA
12h 10m
1 stop
Depart: Sat 8 Apr 2017 Return: Sat 15 Apr 2017 Trip spans 8 days
£526
Select
SWISS
SWISS
SEA
LCY
20h 35m
2 stops
LCY
SEA
22h 08m
2 stops
Depart: Fri 23 Dec 2016 Return: Sat 31 Dec 2016 Trip spans 9 days
£385
Select
Virgin Atlantic
Virgin Atlantic
SEA
LGW
17h 55m
1 stop
LGW
SEA
15h 55m
1 stop
Depart: Wed 12 Apr 2017 Return: Sat 22 Apr 2017 Trip spans 11 days
£387
Select
Virgin Atlantic
Virgin Atlantic
SEA
LGW
16h 20m
1 stop
LGW
SEA
15h 50m
1 stop
Depart: Fri 28 Oct 2016 Return: Tue 15 Nov 2016 Trip spans 19 days
£457
Select
Major Airline
Major Airline
SEA
LGW
36h 40m
2 stops
LGW
SEA
31h 47m
2 stops
Depart: Mon 17 Apr 2017 Return: Fri 28 Apr 2017 Trip spans 12 days
£387
Select
Virgin Atlantic
Virgin Atlantic
SEA
LGW
16h 20m
1 stop
LGW
SEA
15h 50m
1 stop
Depart: Mon 17 Apr 2017 Return: Fri 28 Apr 2017 Trip spans 12 days
£502
Select
Lufthansa
Lufthansa
SEA
LCY
20h 40m
1 stop
LCY
SEA
17h 49m
2 stops
Depart: Wed 21 Dec 2016 Return: Wed 4 Jan 2017 Trip spans 15 days
£463
Select
Major Airline
Major Airline
SEA
LHR
13h 21m
1 stop
LHR
SEA
16h 18m
1 stop
Depart: Thu 27 Apr 2017 Return: Sun 7 May 2017 Trip spans 11 days
£387
Select
Virgin Atlantic
Virgin Atlantic
SEA
LGW
17h 20m
1 stop
LGW
SEA
19h 10m
1 stop
Depart: Fri 10 Mar 2017 Return: Fri 24 Mar 2017 Trip spans 14 days
£526
Select
Icelandair
Icelandair
SEA
LGW
11h 45m
1 stop
LGW
SEA
12h 10m
1 stop
Depart: Wed 12 Apr 2017 Return: Sat 22 Apr 2017 Trip spans 11 days
£547
Select
KLM
KLM
SEA
LCY
15h 40m
1 stop
LCY
SEA
15h 55m
1 stop
Depart: Sun 18 Dec 2016 Return: Thu 29 Dec 2016 Trip spans 12 days
£466
Select
Major Airline
Major Airline
SEA
LCY
23h 35m
2 stops
LCY
SEA
38h 20m
2 stops
Depart: Fri 28 Apr 2017 Return: Fri 12 May 2017 Trip spans 15 days
£387
Select
Virgin Atlantic
Virgin Atlantic
SEA
LGW
17h 20m
1 stop
LGW
SEA
19h 10m
1 stop
Depart: Wed 14 Dec 2016 Return: Thu 5 Jan 2017 Trip spans 23 days
£532
Select
Lufthansa
Lufthansa
SEA
LCY
18h 30m
1 stop
LCY
SEA
25h 45m
1 stop
Depart: Fri 10 Mar 2017 Return: Fri 24 Mar 2017 Trip spans 14 days
£544
Select
Icelandair
Icelandair
SEA
LHR
20h 00m
1 stop
LHR
SEA
12h 00m
1 stop
Direct flights SEA - LON on British Airways
Flight no. Depart SEA Arrive LHR Mon Tue Wed Thu Fri Sat Sun Valid between
52 13:25 06:45 29 Sep - 27 Oct
52 13:30 06:50 3 Oct - 24 Oct
52 13:55 07:15 30 Sep - 28 Oct
52 13:55 06:15 29 Oct - 29 Oct
52 14:40 07:00 3 Nov - 4 Nov
52 14:45 07:05 5 Nov - 5 Nov
48 18:15 11:45 6 Nov - 19 Dec
48 18:30 12:00 8 Nov - 20 Dec
48 19:10 12:25 29 Sep - 28 Oct
48 19:15 11:45 30 Oct - 4 Nov
48 19:30 12:00 1 Nov - 5 Nov
48 19:30 12:00 29 Oct - 29 Oct
* We attempt to get accurate prices and fees; however, prices and fees are not guaranteed, and may be subject to last minute changes over which we have no control.
Airports
Origin

Seattle
£385
Destination

London
only £456
only £466
only £385