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: Thu Mar 16 2017 Return: Mon Mar 27 2017 Trip spans 12 days
Virgin Atlantic
Virgin Atlantic
SEA
LGW
18h 00m
1 stop
LGW
SEA
19h 35m
1 stop
Depart: Tue Jun 20 2017 Return: Mon Jun 26 2017 Trip spans 7 days
Icelandair
Icelandair
SEA
LGW
11h 35m
1 stop
LGW
SEA
13h 05m
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: Fri Mar 31 2017 Return: Wed Apr 12 2017 Trip spans 13 days
Air Canada
Air Canada
SEA
LHR
25h 50m
1 stop
LHR
SEA
14h 06m
1 stop
Depart: Thu Jun 1 2017 Return: Tue Jun 13 2017 Trip spans 13 days
British Airways
British Airways
SEA
LHR
9h 10m
nonstop
LHR
SEA
9h 40m
nonstop
Depart: Mon Apr 10 2017 Return: Thu Apr 20 2017 Trip spans 11 days
SWISS
SWISS
SEA
LCY
20h 05m
2 stops
LCY
SEA
22h 47m
2 stops
Depart: Thu Jun 8 2017 Return: Mon Jun 19 2017 Trip spans 12 days
Major Airline
Major Airline
SEA
LHR
12h 40m
1 stop
LHR
SEA
11h 45m
1 stop
Depart: Fri Jul 7 2017 Return: Fri Jul 14 2017 Trip spans 8 days
American Airlines
American Airlines
SEA
LHR
9h 30m
nonstop
LHR
SEA
17h 25m
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: Fri Aug 4 2017 Return: Sun Sep 3 2017 Trip spans 31 days
KLM
KLM
SEA
LCY
13h 59m
1 stop
LCY
SEA
15h 57m
2 stops
Depart: Fri Mar 3 2017 Return: Fri Mar 10 2017 Trip spans 8 days
Virgin Atlantic
Virgin Atlantic
SEA
LGW
14h 20m
1 stop
LGW
SEA
15h 34m
1 stop
Depart: Sat Apr 1 2017 Return: Thu Apr 6 2017 Trip spans 6 days
$1033
Select
TAP Portugal
TAP Portugal
SEA
LHR
26h 42m
2 stops
LHR
SEA
24h 46m
2 stops
Depart: Sun Apr 2 2017 Return: Mon Apr 10 2017 Trip spans 9 days
Virgin Atlantic
Virgin Atlantic
SEA
LGW
17h 25m
1 stop
LGW
SEA
18h 19m
1 stop
Depart: Sat Apr 1 2017 Return: Sat Apr 8 2017 Trip spans 8 days
$1062
Select
Delta
Delta
SEA
LHR
17h 20m
2 stops
LHR
SEA
17h 19m
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: Tue Jul 11 2017 Return: Tue Jul 25 2017 Trip spans 15 days
$1241
Select
Alitalia
Alitalia
SEA
LCY
35h 23m
2 stops
LCY
SEA
34h 40m
2 stops
Depart: Thu Apr 6 2017 Return: Mon Apr 10 2017 Trip spans 5 days
Virgin Atlantic
Virgin Atlantic
SEA
LGW
17h 25m
1 stop
LGW
SEA
18h 54m
1 stop
Depart: Mon Apr 24 2017 Return: Mon May 1 2017 Trip spans 8 days
Lufthansa
Lufthansa
SEA
STN
22h 25m
2 stops
STN
SEA
32h 39m
2 stops
Depart: Thu May 11 2017 Return: Thu Jun 15 2017 Trip spans 36 days
British Airways
British Airways
SEA
LHR
9h 10m
nonstop
LHR
SEA
9h 40m
nonstop
Depart: Tue Apr 11 2017 Return: Tue Apr 25 2017 Trip spans 15 days
SWISS
SWISS
SEA
LCY
18h 15m
2 stops
LCY
SEA
23h 05m
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 26 - Oct 27
6127 7:15 pm 12:25 pm Mar 25 - Mar 25
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 $670
only $677
only $467
only $659
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