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

Depart
Return
1 adult
Adults
16+
Youths
12-15
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

(Return)
Depart: Tue 25 Apr 2017 Return: Fri 5 May 2017 Trip spans 11 days
£455
Select
Virgin Atlantic
Virgin Atlantic
SEA
LGW
14h 05m
1 stop
LGW
SEA
15h 30m
1 stop
Depart: Tue 28 Mar 2017 Return: Sun 9 Apr 2017 Trip spans 13 days
£459
Select
Icelandair
Icelandair
SEA
LGW
11h 05m
1 stop
LGW
SEA
28h 35m
1 stop
Depart: Thu 27 Apr 2017 Return: Fri 5 May 2017 Trip spans 9 days
£462
Select
Major Airline
Major Airline
SEA
LHR
16h 05m
1 stop
LHR
SEA
17h 25m
1 stop
Depart: Wed 14 Jun 2017 Return: Tue 27 Jun 2017 Trip spans 14 days
£561
Select
Delta
Delta
SEA
LGW
13h 55m
1 stop
LGW
SEA
15h 14m
1 stop
Depart: Mon 10 Apr 2017 Return: Tue 2 May 2017 Trip spans 23 days
£576
Select
SWISS
SWISS
SEA
LCY
20h 05m
2 stops
LCY
SEA
23h 05m
2 stops
Depart: Tue 2 May 2017 Return: Mon 8 May 2017 Trip spans 7 days
£615
Select
Lufthansa
Lufthansa
SEA
LCY
18h 20m
1 stop
LCY
SEA
26h 55m
1 stop
Depart: Thu 6 Apr 2017 Return: Tue 18 Apr 2017 Trip spans 13 days
£616
Select
KLM
KLM
SEA
LCY
17h 18m
1 stop
LCY
SEA
17h 52m
2 stops
Depart: Tue 18 Apr 2017 Return: Tue 2 May 2017 Trip spans 15 days
£689
Select
TAP Portugal
TAP Portugal
SEA
LGW
26h 07m
2 stops
LGW
SEA
43h 40m
2 stops
Depart: Tue 18 Apr 2017 Return: Tue 2 May 2017 Trip spans 15 days
£713
Select
British Airways
British Airways
SEA
LHR
9h 10m
nonstop
LHR
SEA
9h 40m
nonstop
Depart: Mon 1 May 2017 Return: Tue 9 May 2017 Trip spans 9 days
£455
Select
Virgin Atlantic
Virgin Atlantic
SEA
LGW
14h 25m
1 stop
LGW
SEA
15h 30m
1 stop
Depart: Mon 24 Apr 2017 Return: Tue 9 May 2017 Trip spans 16 days
£456
Select
Virgin Atlantic
Virgin Atlantic
SEA
LGW
14h 45m
1 stop
LGW
SEA
15h 30m
1 stop
Depart: Wed 7 Jun 2017 Return: Sun 25 Jun 2017 Trip spans 19 days
£536
Select
Icelandair
Icelandair
SEA
LHR
18h 30m
1 stop
LHR
SEA
29h 05m
1 stop
Depart: Thu 20 Jul 2017 Return: Wed 26 Jul 2017 Trip spans 7 days
£539
Select
Major Airline
Major Airline
SEA
LHR
11h 15m
1 stop
LHR
SEA
28h 35m
1 stop
Depart: Mon 1 May 2017 Return: Tue 9 May 2017 Trip spans 9 days
£456
Select
Virgin Atlantic
Virgin Atlantic
SEA
LGW
14h 25m
1 stop
LGW
SEA
18h 45m
1 stop
Depart: Wed 21 Jun 2017 Return: Wed 5 Jul 2017 Trip spans 15 days
£561
Select
Delta
Delta
SEA
LGW
13h 55m
1 stop
LGW
SEA
15h 14m
1 stop
Depart: Tue 11 Apr 2017 Return: Wed 26 Apr 2017 Trip spans 16 days
£576
Select
SWISS
SWISS
SEA
LCY
21h 50m
2 stops
LCY
SEA
22h 47m
2 stops
Depart: Tue 1 Aug 2017 Return: Wed 16 Aug 2017 Trip spans 16 days
£547
Select
Major Airline
Major Airline
SEA
LHR
13h 35m
1 stop
LHR
SEA
16h 30m
1 stop
Depart: Sun 2 Apr 2017 Return: Fri 14 Apr 2017 Trip spans 13 days
£463
Select
Virgin Atlantic
Virgin Atlantic
SEA
LHR
9h 00m
nonstop
LHR
SEA
9h 40m
nonstop
Depart: Sat 5 Aug 2017 Return: Sun 13 Aug 2017 Trip spans 9 days
£561
Select
Delta
Delta
SEA
LGW
13h 55m
1 stop
LGW
SEA
18h 54m
1 stop
Depart: Tue 23 May 2017 Return: Wed 31 May 2017 Trip spans 9 days
£594
Select
SWISS
SWISS
SEA
LCY
20h 10m
2 stops
LCY
SEA
22h 14m
2 stops
Direct flights SEA - LON on British Airways
Flight no. Depart SEA Arrive LHR Mon Tue Wed Thu Fri Sat Sun Valid between
52 13:15 06:45 30 Mar - 29 Jun
52 13:20 06:50 27 Mar - 29 May
52 13:30 07:00 26 Mar - 2 Jul
52 13:40 07:00 9 Mar - 9 Mar
52 13:40 07:00 10 Mar - 10 Mar
52 13:45 07:05 25 Feb - 11 Mar
52 14:40 07:00 16 Mar - 24 Mar
52 14:45 07:05 18 Mar - 18 Mar
52 14:45 08:05 25 Mar - 25 Mar
48 18:15 11:45 24 Feb - 10 Mar
48 18:30 12:00 4 Mar - 11 Mar
48 19:15 11:45 12 Mar - 24 Mar
48 19:15 12:25 25 Mar - 25 Mar
48 19:15 12:25 26 Mar - 3 Apr
48 19:15 12:25 30 Mar - 27 Apr
48 19:15 12:25 5 Apr - 30 Apr
48 19:30 12:00 14 Mar - 23 Mar
* 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
£455
Destination

London
only £462
only £576
only £455
Airlines Airline reviews

47 travellers who booked a flight to London from Seattle rated their chosen airline with an average of 7.9

Overall
8.0
Boarding
8.3
Crew
8.6
Comfort
7.3
Food
7.4
Entertainment
8.0