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

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 London to Seattle/Tacoma Intl

(Round-trip)
Depart: Fri 24 Feb 2017 Return: Mon 27 Feb 2017 Trip spans 4 days
£383
Select
Icelandair
Icelandair
LGW
SEA
12h 10m
1 stop
SEA
LGW
11h 45m
1 stop
Depart: Tue 10 Jan 2017 Return: Tue 24 Jan 2017 Trip spans 15 days
£399
Select
Major Airline
Major Airline
LHR
SEA
12h 00m
1 stop
SEA
LHR
11h 45m
1 stop
Depart: Mon 6 Feb 2017 Return: Mon 20 Feb 2017 Trip spans 15 days
£450
Select
Lufthansa
Lufthansa
LCY
SEA
28h 30m
2 stops
SEA
LCY
17h 25m
2 stops
Depart: Tue 10 Jan 2017 Return: Tue 31 Jan 2017 Trip spans 22 days
£494
Select
KLM
KLM
LCY
SEA
19h 15m
2 stops
SEA
LCY
17h 37m
1 stop
Depart: Sat 29 Oct 2016 Return: Sun 6 Nov 2016 Trip spans 9 days
£497
Select
Air Canada
Air Canada
LHR
SEA
27h 24m
1 stop
SEA
LHR
30h 15m
1 stop
Depart: Sat 5 Nov 2016 Return: Tue 15 Nov 2016 Trip spans 11 days
£519
Select
Virgin Atlantic
Virgin Atlantic
LHR
SEA
10h 31m
nonstop
SEA
LHR
9h 58m
nonstop
Depart: Sun 20 Nov 2016 Return: Sat 26 Nov 2016 Trip spans 7 days
£531
Select
Iberia
Iberia
LGW
SEA
31h 47m
2 stops
SEA
LGW
26h 11m
2 stops
Depart: Sat 10 Dec 2016 Return: Sat 17 Dec 2016 Trip spans 8 days
£552
Select
British Airways
British Airways
LCY
SEA
21h 10m
2 stops
SEA
LCY
38h 45m
2 stops
Depart: Mon 6 Feb 2017 Return: Mon 20 Feb 2017 Trip spans 15 days
£386
Select
Icelandair
Icelandair
LHR
SEA
12h 00m
1 stop
SEA
LHR
11h 45m
1 stop
Depart: Tue 27 Sep 2016 Return: Sat 1 Oct 2016 Trip spans 5 days
£793
Select
Finnair
Finnair
LHR
SEA
9h 35m
nonstop
SEA
LHR
9h 15m
nonstop
Depart: Sun 11 Dec 2016 Return: Tue 10 Jan 2017 Trip spans 31 days
£419
Select
Major Airline
Major Airline
LHR
SEA
15h 42m
1 stop
SEA
LHR
15h 20m
1 stop
Depart: Thu 19 Jan 2017 Return: Sat 21 Jan 2017 Trip spans 3 days
£388
Select
Icelandair
Icelandair
LGW
SEA
12h 10m
1 stop
SEA
LGW
11h 45m
1 stop
Depart: Fri 3 Mar 2017 Return: Sat 11 Mar 2017 Trip spans 9 days
£390
Select
Icelandair
Icelandair
LGW
SEA
12h 10m
1 stop
SEA
LGW
20h 15m
1 stop
Depart: Mon 21 Nov 2016 Return: Sun 27 Nov 2016 Trip spans 7 days
£474
Select
Lufthansa
Lufthansa
LCY
SEA
21h 17m
2 stops
SEA
LCY
41h 25m
2 stops
Depart: Sat 25 Mar 2017 Return: Thu 20 Apr 2017 Trip spans 27 days
£502
Select
KLM
KLM
LCY
SEA
20h 54m
2 stops
SEA
LCY
15h 40m
1 stop
Depart: Mon 20 Mar 2017 Return: Sat 25 Mar 2017 Trip spans 6 days
£392
Select
Icelandair
Icelandair
LGW
SEA
12h 10m
1 stop
SEA
LGW
19h 40m
1 stop
Depart: Sat 8 Oct 2016 Return: Sat 15 Oct 2016 Trip spans 8 days
£542
Select
Air Canada
Air Canada
LGW
SEA
17h 10m
1 stop
SEA
LGW
16h 45m
2 stops
Depart: Mon 26 Sep 2016 Return: Mon 3 Oct 2016 Trip spans 8 days
£1104
Select
SWISS
SWISS
LCY
SEA
22h 28m
2 stops
SEA
LCY
20h 10m
2 stops
Depart: Mon 5 Dec 2016 Return: Mon 12 Dec 2016 Trip spans 8 days
£513
Select
KLM
KLM
LCY
SEA
19h 15m
2 stops
SEA
LCY
17h 30m
1 stop
Depart: Thu 20 Oct 2016 Return: Wed 26 Oct 2016 Trip spans 7 days
£567
Select
British Airways
British Airways
LHR
SEA
9h 35m
nonstop
SEA
LHR
14h 15m
1 stop
Direct flights LON - SEA on British Airways
Flight no. Depart LHR Arrive SEA Mon Tue Wed Thu Fri Sat Sun Valid between
53 09:25 11:00 23 Sep - 28 Oct
53 09:45 11:20 22 Sep - 29 Oct
49 14:25 17:15 30 Oct - 5 Nov
49 15:25 17:05 23 Sep - 28 Oct
49 15:30 17:05 20 Sep - 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

London
only £386
only £450
only £383
Destination

Seattle
£383
Airlines Airline reviews

17 travellers who booked a flight to Seattle from London rated their chosen airline with an average of 8.0

Overall
8.1
Boarding
8.3
Crew
8.5
Comfort
7.4
Food
7.7
Entertainment
8.3