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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Book cheap flights from Seattle/Tacoma Intl to London

(Round-trip)
Depart: Thu 21 Jul 2016 Return: Wed 31 Aug 2016 Trip spans 42 days
£528
Select
WestJet
WestJet
SEA
LGW
32h 56m
2 stops
LGW
SEA
28h 05m
2 stops
Depart: Mon 18 Jul 2016 Return: Mon 8 Aug 2016 Trip spans 22 days
£543
Select
United
United
SEA
LHR
16h 10m
2 stops
LHR
SEA
16h 19m
1 stop
Depart: Tue 22 Mar 2016 Return: Mon 28 Mar 2016 Trip spans 7 days
£583
Select
Finnair
Finnair
SEA
LHR
9h 20m
nonstop
LHR
SEA
9h 35m
nonstop
Depart: Wed 2 Mar 2016 Return: Wed 9 Mar 2016 Trip spans 8 days
£594
Select
Finnair
Finnair
SEA
LHR
9h 20m
nonstop
LHR
SEA
9h 50m
nonstop
Depart: Thu 17 Mar 2016 Return: Thu 21 Apr 2016 Trip spans 36 days
£651
Select
Major Airline
Major Airline
SEA
LGW
25h 45m
2 stops
LGW
SEA
35h 18m
2 stops
Depart: Sun 10 Apr 2016 Return: Sat 23 Apr 2016 Trip spans 14 days
£669
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Air Canada
Air Canada
SEA
LHR
14h 45m
1 stop
LHR
SEA
12h 56m
1 stop
Depart: Fri 26 Feb 2016 Return: Sun 6 Mar 2016 Trip spans 10 days
£700
Select
Air Canada
Air Canada
SEA
LHR
17h 05m
1 stop
LHR
SEA
12h 41m
1 stop
Depart: Tue 21 Jun 2016 Return: Tue 19 Jul 2016 Trip spans 29 days
£713
Select
American Airlines
American Airlines
SEA
LHR
17h 10m
1 stop
LHR
SEA
19h 25m
1 stop
Depart: Wed 22 Jun 2016 Return: Wed 13 Jul 2016 Trip spans 22 days
£732
Select
WestJet
WestJet
SEA
LGW
18h 59m
2 stops
LGW
SEA
27h 30m
2 stops
Depart: Sat 18 Jun 2016 Return: Mon 11 Jul 2016 Trip spans 24 days
£765
Select
Air France
Air France
SEA
LHR
9h 58m
nonstop
LHR
SEA
10h 13m
nonstop
Depart: Wed 23 Mar 2016 Return: Sun 3 Apr 2016 Trip spans 12 days
£1032
Select
Alitalia
Alitalia
SEA
LCY
22h 01m
2 stops
LCY
SEA
24h 05m
2 stops
Depart: Wed 6 Jul 2016 Return: Tue 19 Jul 2016 Trip spans 14 days
£1333
Select
Major Airline
Major Airline
SEA
LGW
9h 40m
nonstop
LGW
SEA
9h 40m
nonstop
Depart: Sat 9 Apr 2016 Return: Sun 24 Apr 2016 Trip spans 16 days
£2317
Select
Major Airline
Major Airline
SEA
LGW
9h 40m
nonstop
LGW
SEA
9h 40m
nonstop
Direct flights SEA - LON on British Airways
Flight No. Departure SEA Arrival LHR Mon Tue Wed Thu Fri Sat Sun Valid between
52 13:35 06:55 15 Feb - 15 Feb
52 13:35 06:55 7 Mar - 7 Mar
52 13:40 07:00 4 Mar - 11 Mar
52 13:40 07:00 5 Feb - 19 Feb
52 13:45 07:05 30 Jan - 13 Feb
52 13:45 07:05 5 Mar - 12 Mar
52 14:35 06:55 14 Mar - 21 Mar
48 18:00 11:30 31 Jan - 23 Feb
48 18:00 11:30 25 Feb - 29 Feb
48 18:00 11:30 24 Feb - 24 Feb
48 18:05 11:35 26 Feb - 27 Feb
48 18:05 11:35 20 Feb - 20 Feb
48 18:05 11:35 30 Jan - 19 Feb
48 18:10 11:30 1 Mar - 10 Mar
48 18:15 11:35 4 Mar - 12 Mar
48 19:10 11:30 13 Mar - 24 Mar
* We make every 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
£528
Destination

London
only £543
only £1032
only £528