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: Sun 11 Sep 2016 Return: Sat 24 Sep 2016 Trip spans 14 days
£450
Select
Icelandair
Icelandair
LGW
SEA
22h 05m
1 stop
SEA
LGW
26h 55m
1 stop
Depart: Wed 11 May 2016 Return: Wed 18 May 2016 Trip spans 8 days
£457
Select
WestJet
WestJet
LGW
SEA
16h 05m
1 stop
SEA
LGW
30h 00m
1 stop
Depart: Fri 26 Aug 2016 Return: Sat 10 Sep 2016 Trip spans 16 days
£518
Select
Virgin Atlantic
Virgin Atlantic
LHR
SEA
15h 00m
1 stop
SEA
LHR
15h 00m
1 stop
Depart: Sat 20 Aug 2016 Return: Sun 25 Sep 2016 Trip spans 37 days
£522
Select
Iberia
Iberia
LGW
SEA
19h 58m
2 stops
SEA
LGW
31h 10m
2 stops
Depart: Thu 18 Aug 2016 Return: Thu 25 Aug 2016 Trip spans 8 days
£529
Select
Finnair
Finnair
LHR
SEA
9h 35m
nonstop
SEA
LHR
9h 15m
nonstop
Depart: Sat 3 Sep 2016 Return: Fri 16 Sep 2016 Trip spans 14 days
£549
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Air Canada
Air Canada
LGW
SEA
19h 12m
1 stop
SEA
LGW
15h 25m
1 stop
Depart: Tue 6 Sep 2016 Return: Tue 13 Sep 2016 Trip spans 8 days
£561
Select
SWISS
SWISS
LCY
SEA
21h 54m
2 stops
SEA
LCY
18h 20m
1 stop
Depart: Wed 7 Sep 2016 Return: Sun 18 Sep 2016 Trip spans 12 days
£567
Select
Lufthansa
Lufthansa
LCY
SEA
24h 50m
1 stop
SEA
LCY
18h 20m
1 stop
Depart: Tue 31 May 2016 Return: Mon 6 Jun 2016 Trip spans 7 days
£665
Select
Air France
Air France
LHR
SEA
10h 18m
nonstop
SEA
LHR
9h 58m
nonstop
Depart: Thu 5 May 2016 Return: Sun 22 May 2016 Trip spans 18 days
£754
Select
SAS
SAS
LHR
SEA
32h 09m
2 stops
SEA
LHR
21h 05m
2 stops
Depart: Mon 11 Jul 2016 Return: Mon 18 Jul 2016 Trip spans 8 days
£900
Select
KLM
KLM
LHR
SEA
10h 22m
nonstop
SEA
LHR
9h 50m
nonstop
Depart: Thu 8 Sep 2016 Return: Thu 22 Sep 2016 Trip spans 15 days
£462
Select
Icelandair
Icelandair
LGW
SEA
12h 35m
1 stop
SEA
LGW
11h 45m
1 stop
Depart: Sun 2 Oct 2016 Return: Sat 22 Oct 2016 Trip spans 21 days
£472
Select
Icelandair
Icelandair
LGW
SEA
22h 05m
1 stop
SEA
LGW
11h 15m
1 stop
Depart: Fri 2 Sep 2016 Return: Fri 9 Sep 2016 Trip spans 8 days
£529
Select
Finnair
Finnair
LHR
SEA
9h 40m
nonstop
SEA
LHR
9h 15m
nonstop
Depart: Sat 1 Oct 2016 Return: Fri 21 Oct 2016 Trip spans 21 days
£533
Select
Iberia
Iberia
LHR
SEA
16h 33m
1 stop
SEA
LHR
9h 15m
nonstop
Depart: Sat 7 May 2016 Return: Sat 21 May 2016 Trip spans 15 days
£541
Select
WestJet
WestJet
LGW
SEA
27h 59m
1 stop
SEA
LGW
30h 49m
1 stop
Depart: Fri 19 Aug 2016 Return: Fri 2 Sep 2016 Trip spans 15 days
£557
Select
Virgin Atlantic
Virgin Atlantic
LHR
SEA
10h 22m
nonstop
SEA
LHR
9h 50m
nonstop
Depart: Wed 17 Aug 2016 Return: Mon 22 Aug 2016 Trip spans 6 days
£581
Select
Lufthansa
Lufthansa
LCY
SEA
19h 15m
2 stops
SEA
LCY
18h 20m
1 stop
Depart: Sun 16 Oct 2016 Return: Sun 23 Oct 2016 Trip spans 8 days
£533
Select
Finnair
Finnair
LHR
SEA
9h 35m
nonstop
SEA
LHR
9h 20m
nonstop
Depart: Thu 6 Oct 2016 Return: Thu 3 Nov 2016 Trip spans 29 days
£535
Select
Iberia
Iberia
LHR
SEA
9h 35m
nonstop
SEA
LHR
9h 20m
nonstop
Direct flights LON - SEA on British Airways
Flight # Depart LHR Arrive SEA Mon Tue Wed Thu Fri Sat Sun Valid between
53 09:25 11:00 29 Apr - 3 Jun
53 09:45 11:20 28 Apr - 2 Jun
53 09:45 11:20 4 Jun - 11 Jun
53 09:45 11:20 5 Jun - 5 Jun
49 15:25 17:05 29 Apr - 28 Oct
49 15:30 17:05 28 Apr - 29 Oct
* 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

London
only £518
only £561
only £450
Destination

Seattle
£450