Find Deals on Flights from London Heathrow to Seattle/Tacoma Intl (LHR - 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 Heathrow to Seattle/Tacoma Intl

(Round-trip)
Depart: Mon 15 Feb 2016 Return: Mon 29 Feb 2016 Trip spans 15 days
£392
Select
Icelandair
Icelandair
LHR
15:35
SEA
19:40
28h 05m
1 stop
SEA
10:30
LHR
22:30
12h 00m
1 stop
Depart: Mon 9 Nov 2015 Return: Thu 19 Nov 2015 Trip spans 11 days
£479
Select
Iberia
Iberia
LHR
04:50
SEA
00:25
19h 35m
1 stop
SEA
02:30
LHR
19:35
17h 05m
1 stop
Depart: Tue 20 Oct 2015 Return: Sun 25 Oct 2015 Trip spans 6 days
£486
Select
KLM
KLM
LHR
09:05
SEA
19:33
10h 28m
nonstop
SEA
15:37
LHR
01:25
9h 48m
nonstop
Depart: Mon 26 Oct 2015 Return: Mon 2 Nov 2015 Trip spans 8 days
£488
Select
Virgin Atlantic
Virgin Atlantic
LHR
08:55
SEA
19:23
10h 28m
nonstop
SEA
13:27
LHR
23:25
9h 58m
nonstop
Depart: Wed 9 Dec 2015 Return: Mon 28 Dec 2015 Trip spans 20 days
£498
Select
Air France
Air France
LHR
02:05
SEA
18:28
16h 23m
1 stop
SEA
08:06
LHR
21:35
13h 29m
1 stop
Depart: Sun 1 Nov 2015 Return: Sun 15 Nov 2015 Trip spans 15 days
£501
Select
Air Canada
Air Canada
LHR
03:30
SEA
15:20
35h 50m
1 stop
SEA
14:00
LHR
22:15
32h 15m
1 stop
Depart: Thu 24 Mar 2016 Return: Sun 27 Mar 2016 Trip spans 4 days
£509
Select
Delta
Delta
LHR
08:55
SEA
19:22
10h 27m
nonstop
SEA
19:30
LHR
19:05
23h 35m
1 stop
Depart: Wed 28 Oct 2015 Return: Fri 27 Nov 2015 Trip spans 31 days
£512
Select
Finnair
Finnair
LHR
10:15
SEA
20:05
9h 50m
nonstop
SEA
13:05
LHR
22:35
9h 30m
nonstop
Depart: Mon 19 Oct 2015 Return: Mon 2 Nov 2015 Trip spans 15 days
£533
Select
Lufthansa
Lufthansa
LHR
14:30
SEA
15:30
25h 00m
1 stop
SEA
04:25
LHR
22:15
17h 50m
1 stop
Depart: Fri 25 Dec 2015 Return: Thu 31 Dec 2015 Trip spans 7 days
£549
Select
United
United
LHR
09:25
SEA
21:29
12h 04m
1 stop
SEA
00:45
LHR
16:55
16h 10m
2 stops
Depart: Mon 14 Sep 2015 Return: Thu 24 Sep 2015 Trip spans 11 days
£728
Select
American Airlines
American Airlines
LHR
08:50
SEA
01:21
16h 31m
1 stop
SEA
03:00
LHR
18:50
15h 50m
1 stop
Depart: Thu 24 Dec 2015 Return: Sat 2 Jan 2016 Trip spans 10 days
£768
Select
Aer Lingus
Aer Lingus
LHR
01:50
SEA
21:40
19h 50m
2 stops
SEA
01:45
LHR
20:15
18h 30m
2 stops
Depart: Wed 2 Sep 2015 Return: Wed 9 Sep 2015 Trip spans 8 days
£794
Select
British Airways
British Airways
LHR
03:45
SEA
20:41
16h 56m
1 stop
SEA
09:34
LHR
23:15
13h 41m
1 stop
Direct flights LHR - SEA on British Airways
Flight No. Departure LHR Arrival SEA Mon Tue Wed Thu Fri Sat Sun Valid between
53 08:50 10:25 3 Sep - 15 Oct
53 09:40 11:15 4 Sep - 16 Oct
53 09:55 11:30 29 Aug - 11 Oct
49 15:30 17:05 29 Aug - 16 Oct
Airports
Origin

London
£392
Destination

Seattle
£392