Find Deals on Flights from Seattle to London

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 to London

(Round-trip)
Depart: Mon May 29 2017 Return: Fri Jun 9 2017 Trip spans 12 days
Icelandair
Icelandair
SEA
LGW
11h 45m
1 stop
LGW
SEA
12h 35m
1 stop
Depart: Tue Apr 25 2017 Return: Wed May 10 2017 Trip spans 16 days
Virgin Atlantic
Virgin Atlantic
SEA
LHR
9h 00m
nonstop
LHR
SEA
9h 40m
nonstop
Depart: Mon Apr 24 2017 Return: Tue May 2 2017 Trip spans 9 days
British Airways
British Airways
SEA
LHR
14h 46m
1 stop
LHR
SEA
36h 59m
2 stops
Depart: Mon May 1 2017 Return: Tue May 9 2017 Trip spans 9 days
Delta
Delta
SEA
LHR
9h 00m
nonstop
LHR
SEA
9h 40m
nonstop
Depart: Thu Sep 7 2017 Return: Wed Sep 20 2017 Trip spans 14 days
Major Airline
Major Airline
SEA
LHR
19h 40m
1 stop
LHR
SEA
12h 35m
1 stop
Depart: Wed Jun 7 2017 Return: Wed Jun 14 2017 Trip spans 8 days
WestJet
WestJet
SEA
LGW
12h 50m
1 stop
LGW
SEA
16h 55m
1 stop
Depart: Wed May 10 2017 Return: Thu Jun 1 2017 Trip spans 23 days
American Airlines
American Airlines
SEA
LHR
16h 55m
1 stop
LHR
SEA
18h 50m
1 stop
Depart: Tue Apr 25 2017 Return: Wed May 3 2017 Trip spans 9 days
SWISS
SWISS
SEA
LCY
20h 00m
2 stops
LCY
SEA
22h 25m
2 stops
Depart: Fri Jun 16 2017 Return: Sat Jun 24 2017 Trip spans 9 days
Iberia
Iberia
SEA
LHR
9h 30m
nonstop
LHR
SEA
9h 40m
nonstop
Depart: Tue May 23 2017 Return: Tue Jun 6 2017 Trip spans 15 days
KLM
KLM
SEA
LCY
15h 13m
1 stop
LCY
SEA
14h 15m
1 stop
Depart: Sun Jul 2 2017 Return: Tue Jul 25 2017 Trip spans 24 days
Lufthansa
Lufthansa
SEA
LCY
18h 20m
1 stop
LCY
SEA
48h 03m
2 stops
Depart: Mon May 29 2017 Return: Wed Jun 7 2017 Trip spans 10 days
Icelandair
Icelandair
SEA
LGW
11h 45m
1 stop
LGW
SEA
12h 50m
1 stop
Depart: Mon May 1 2017 Return: Wed May 10 2017 Trip spans 10 days
Virgin Atlantic
Virgin Atlantic
SEA
LHR
9h 00m
nonstop
LHR
SEA
9h 40m
nonstop
Depart: Tue Jul 11 2017 Return: Wed Jul 19 2017 Trip spans 9 days
Major Airline
Major Airline
SEA
LHR
15h 25m
1 stop
LHR
SEA
35h 25m
1 stop
Depart: Tue Mar 28 2017 Return: Tue Apr 4 2017 Trip spans 8 days
$1458
Select
Turkish Airlines
Turkish Airlines
SEA
LGW
38h 05m
2 stops
LGW
SEA
36h 27m
2 stops
Depart: Tue Aug 22 2017 Return: Tue Aug 29 2017 Trip spans 8 days
Icelandair
Icelandair
SEA
LGW
11h 35m
1 stop
LGW
SEA
13h 05m
1 stop
Depart: Sun Jun 4 2017 Return: Wed Jun 21 2017 Trip spans 18 days
British Airways
British Airways
SEA
LHR
9h 30m
nonstop
LHR
SEA
9h 40m
nonstop
Depart: Tue Aug 1 2017 Return: Tue Aug 15 2017 Trip spans 15 days
American Airlines
American Airlines
SEA
LGW
27h 20m
1 stop
LGW
SEA
20h 40m
2 stops
Depart: Mon Apr 24 2017 Return: Sun May 7 2017 Trip spans 14 days
Virgin Atlantic
Virgin Atlantic
SEA
LGW
14h 45m
1 stop
LGW
SEA
32h 11m
1 stop
Depart: Fri Jul 21 2017 Return: Fri Aug 4 2017 Trip spans 15 days
Delta
Delta
SEA
LGW
13h 55m
1 stop
LGW
SEA
19h 04m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Why aren’t prices accurate 100% of the time?
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
$608
Destination

London
only $635
only $740
only $608
Airlines Airline reviews

53 travelers who booked a flight from Seattle to London rated their chosen airlines with an average of 8.0.

Overall
8.1
Boarding
8.3
Crew
8.5
Comfort
7.4
Food
7.6
Entertainment
8.0