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

Depart
Return
1 adult
Adults
18-64
Seniors
65+
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: Fri Mar 17 2017 Return: Fri Mar 24 2017 Trip spans 8 days
Virgin Atlantic
Virgin Atlantic
SEA
LGW
18h 40m
1 stop
LGW
SEA
18h 55m
1 stop
Depart: Tue May 2 2017 Return: Tue May 9 2017 Trip spans 8 days
Air Canada
Air Canada
SEA
LHR
15h 50m
1 stop
LHR
SEA
23h 25m
2 stops
Depart: Wed May 3 2017 Return: Tue May 9 2017 Trip spans 7 days
Lufthansa
Lufthansa
SEA
STN
21h 10m
2 stops
STN
SEA
32h 41m
2 stops
Depart: Sat Jun 3 2017 Return: Mon Jun 12 2017 Trip spans 10 days
Major Airline
Major Airline
SEA
LHR
11h 15m
1 stop
LHR
SEA
13h 05m
1 stop
Depart: Sat May 13 2017 Return: Wed May 24 2017 Trip spans 12 days
United
United
SEA
LHR
15h 50m
1 stop
LHR
SEA
14h 41m
1 stop
Depart: Tue Apr 11 2017 Return: Tue Apr 25 2017 Trip spans 15 days
SWISS
SWISS
SEA
LCY
18h 15m
2 stops
LCY
SEA
21h 32m
2 stops
Depart: Thu Jul 20 2017 Return: Fri Aug 18 2017 Trip spans 30 days
British Airways
British Airways
SEA
LHR
9h 10m
nonstop
LHR
SEA
9h 55m
nonstop
Depart: Fri Apr 7 2017 Return: Fri Apr 14 2017 Trip spans 8 days
American Airlines
American Airlines
SEA
LHR
15h 35m
1 stop
LHR
SEA
15h 36m
1 stop
Depart: Sat Jul 29 2017 Return: Thu Aug 17 2017 Trip spans 20 days
KLM
KLM
SEA
LCY
17h 54m
1 stop
LCY
SEA
14h 31m
1 stop
Depart: Thu Aug 10 2017 Return: Mon Aug 21 2017 Trip spans 12 days
Thomas Cook Airlines
Thomas Cook Airlines
SEA
STN
17h 20m
1 stop
STN
SEA
18h 05m
1 stop
Depart: Wed May 10 2017 Return: Mon May 22 2017 Trip spans 13 days
WestJet
WestJet
SEA
LGW
12h 50m
1 stop
LGW
SEA
15h 05m
1 stop
Depart: Tue Feb 28 2017 Return: Tue Mar 14 2017 Trip spans 14 days
Icelandair
Icelandair
SEA
LHR
20h 00m
1 stop
LHR
SEA
28h 05m
1 stop
Depart: Wed Mar 29 2017 Return: Wed Apr 5 2017 Trip spans 8 days
Virgin Atlantic
Virgin Atlantic
SEA
LGW
14h 05m
1 stop
LGW
SEA
18h 49m
1 stop
Depart: Thu Apr 6 2017 Return: Mon Apr 10 2017 Trip spans 5 days
Virgin Atlantic
Virgin Atlantic
SEA
LGW
14h 05m
1 stop
LGW
SEA
18h 19m
1 stop
Depart: Mon Apr 10 2017 Return: Mon Apr 24 2017 Trip spans 15 days
Virgin Atlantic
Virgin Atlantic
SEA
LGW
17h 40m
1 stop
LGW
SEA
18h 19m
1 stop
Depart: Tue Apr 25 2017 Return: Tue May 30 2017 Trip spans 36 days
Virgin Atlantic
Virgin Atlantic
SEA
LGW
14h 05m
1 stop
LGW
SEA
15h 30m
1 stop
Depart: Tue Apr 25 2017 Return: Mon May 1 2017 Trip spans 7 days
Lufthansa
Lufthansa
SEA
STN
28h 41m
2 stops
STN
SEA
47h 16m
2 stops
Depart: Sun Apr 2 2017 Return: Wed Apr 12 2017 Trip spans 11 days
Air Canada
Air Canada
SEA
LHR
15h 50m
1 stop
LHR
SEA
14h 06m
1 stop
Depart: Sun May 7 2017 Return: Wed May 17 2017 Trip spans 11 days
Major Airline
Major Airline
SEA
LGW
13h 45m
2 stops
LGW
SEA
17h 28m
2 stops
Depart: Mon May 1 2017 Return: Tue May 9 2017 Trip spans 9 days
SWISS
SWISS
SEA
LCY
20h 05m
2 stops
LCY
SEA
22h 14m
2 stops
Direct flights SEA to LON on American Airlines
Flight # Depart SEA Arrive LHR Sun Mon Tue Wed Thu Fri Sat Valid Between
6232 1:15 pm 6:45 am Mar 30 - Oct 26
6232 1:20 pm 6:50 am Mar 27 - May 29
6232 1:30 pm 7:00 am Mar 26 - Oct 27
6232 1:40 pm 7:00 am Feb 23 - Mar 10
6232 1:45 pm 7:05 am Feb 25 - Mar 11
6232 2:40 pm 7:00 am Mar 16 - Mar 24
6232 2:45 pm 7:05 am Mar 18 - Mar 18
6232 2:45 pm 8:05 am Mar 25 - Mar 25
6127 6:15 pm 11:45 am Feb 24 - Mar 10
6127 6:30 pm 12:00 pm Feb 23 - Mar 11
6127 7:15 pm 11:45 am Mar 12 - Mar 24
6127 7:15 pm 12:25 pm Mar 25 - Mar 25
6127 7:15 pm 12:25 pm Mar 26 - Oct 27
6127 7:30 pm 12:00 pm Mar 14 - Mar 23
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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Airports
Origin

Seattle
$467
Destination

London
only $616
only $676
only $467
only $650
Airlines Airline reviews

48 travelers who booked a flight from Seattle to London rated their chosen airlines with an average of 7.9.

Overall
8.0
Boarding
8.3
Crew
8.5
Comfort
7.3
Food
7.5
Entertainment
7.9