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: Sat Aug 19 2017 Return: Fri Sep 1 2017 Trip spans 14 days
Virgin Atlantic
Virgin Atlantic
SEA
LGW
17h 25m
1 stop
LGW
SEA
18h 49m
1 stop
Depart: Sat May 13 2017 Return: Tue May 23 2017 Trip spans 11 days
United
United
SEA
LHR
15h 50m
1 stop
LHR
SEA
14h 41m
1 stop
Depart: Sun Jul 23 2017 Return: Mon Aug 7 2017 Trip spans 16 days
Major Airline
Major Airline
SEA
LHR
18h 35m
1 stop
LHR
SEA
16h 30m
1 stop
Depart: Wed Apr 19 2017 Return: Sun Apr 30 2017 Trip spans 12 days
Lufthansa
Lufthansa
SEA
STN
27h 30m
2 stops
STN
SEA
57h 29m
2 stops
Depart: Sun Jun 25 2017 Return: Sun Jul 9 2017 Trip spans 15 days
American Airlines
American Airlines
SEA
LGW
27h 50m
2 stops
LGW
SEA
29h 54m
2 stops
Depart: Tue Jul 4 2017 Return: Thu Jul 20 2017 Trip spans 17 days
Delta
Delta
SEA
LHR
9h 00m
nonstop
LHR
SEA
9h 40m
nonstop
Depart: Mon Aug 7 2017 Return: Mon Aug 21 2017 Trip spans 15 days
Thomas Cook Airlines
Thomas Cook Airlines
SEA
STN
15h 10m
1 stop
STN
SEA
15h 15m
1 stop
Depart: Mon Apr 10 2017 Return: Thu Apr 20 2017 Trip spans 11 days
SWISS
SWISS
SEA
LCY
18h 15m
2 stops
LCY
SEA
22h 47m
2 stops
Depart: Tue Aug 1 2017 Return: Thu Aug 17 2017 Trip spans 17 days
KLM
KLM
SEA
LCY
15h 17m
1 stop
LCY
SEA
14h 31m
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 Apr 18 2017 Return: Tue May 2 2017 Trip spans 15 days
TAP Portugal
TAP Portugal
SEA
LGW
26h 07m
2 stops
LGW
SEA
43h 40m
2 stops
Depart: Sat Aug 19 2017 Return: Fri Sep 1 2017 Trip spans 14 days
British Airways
British Airways
SEA
LHR
9h 30m
nonstop
LHR
SEA
9h 55m
nonstop
Depart: Tue Feb 28 2017 Return: Tue Mar 14 2017 Trip spans 14 days
Icelandair
Icelandair
SEA
LHR
11h 45m
1 stop
LHR
SEA
28h 05m
1 stop
Depart: Wed Apr 5 2017 Return: Wed Apr 26 2017 Trip spans 22 days
Virgin Atlantic
Virgin Atlantic
SEA
LGW
17h 25m
1 stop
LGW
SEA
18h 49m
1 stop
Depart: Tue Apr 4 2017 Return: Mon Apr 10 2017 Trip spans 7 days
Virgin Atlantic
Virgin Atlantic
SEA
LGW
14h 05m
1 stop
LGW
SEA
18h 19m
1 stop
Depart: Wed Aug 9 2017 Return: Mon Aug 28 2017 Trip spans 20 days
$1295
Select
Alitalia
Alitalia
SEA
LCY
35h 19m
2 stops
LCY
SEA
27h 26m
2 stops
Depart: Sat Jun 17 2017 Return: Thu Jun 29 2017 Trip spans 13 days
Major Airline
Major Airline
SEA
LHR
15h 25m
1 stop
LHR
SEA
16h 25m
1 stop
Depart: Tue Apr 18 2017 Return: Tue May 2 2017 Trip spans 15 days
United
United
SEA
LHR
15h 55m
1 stop
LHR
SEA
21h 09m
2 stops
Depart: Thu Jun 22 2017 Return: Thu Jun 29 2017 Trip spans 8 days
Delta
Delta
SEA
LGW
13h 55m
1 stop
LGW
SEA
15h 19m
1 stop
Depart: Mon Apr 10 2017 Return: Thu Apr 20 2017 Trip spans 11 days
Virgin Atlantic
Virgin Atlantic
SEA
LHR
9h 00m
nonstop
LHR
SEA
9h 40m
nonstop
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
$470
Destination

London
only $576
only $716
only $470
only $674
Airlines Airline reviews

47 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
8.6
Comfort
7.3
Food
7.4
Entertainment
8.0