Find Cheap Flights from United Kingdom to Seattle

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 United Kingdom to Seattle

(Round-trip)
Depart: Sun Sep 17 2017 Return: Mon Oct 2 2017 Trip spans 16 days
Norwegian
Norwegian
LGW
SEA
9h 55m
nonstop
SEA
LGW
9h 20m
nonstop
Depart: Wed Sep 20 2017 Return: Wed Oct 11 2017 Trip spans 22 days
SWISS
SWISS
LCY
SEA
21h 39m
2 stops
SEA
LCY
20h 35m
2 stops
Depart: Sun Sep 3 2017 Return: Mon Sep 25 2017 Trip spans 23 days
Virgin Atlantic
Virgin Atlantic
LHR
SEA
9h 40m
nonstop
SEA
LHR
9h 00m
nonstop
Depart: Wed Oct 11 2017 Return: Wed Oct 18 2017 Trip spans 8 days
KLM
KLM
LHR
SEA
12h 45m
1 stop
SEA
LHR
12h 54m
1 stop
Depart: Wed Oct 25 2017 Return: Wed Nov 22 2017 Trip spans 29 days
Major Airline
Major Airline
LHR
SEA
9h 40m
nonstop
SEA
LHR
9h 30m
nonstop
Depart: Wed Sep 20 2017 Return: Wed Oct 11 2017 Trip spans 22 days
British Airways
British Airways
LHR
SEA
9h 40m
nonstop
SEA
LHR
9h 10m
nonstop
Depart: Mon Sep 11 2017 Return: Sun Sep 24 2017 Trip spans 14 days
Icelandair
Icelandair
LGW
SEA
12h 35m
1 stop
SEA
LGW
11h 15m
1 stop
Depart: Wed May 31 2017 Return: Thu Jun 15 2017 Trip spans 16 days
Thomas Cook Airlines
Thomas Cook Airlines
MAN
SEA
18h 31m
1 stop
SEA
MAN
17h 15m
1 stop
Depart: Mon Sep 11 2017 Return: Sun Sep 24 2017 Trip spans 14 days
Lufthansa
Lufthansa
LCY
SEA
24h 35m
1 stop
SEA
LCY
18h 20m
1 stop
Depart: Mon May 22 2017 Return: Mon May 29 2017 Trip spans 8 days
Condor
Condor
MAN
SEA
16h 19m
1 stop
SEA
MAN
13h 45m
1 stop
Depart: Thu May 11 2017 Return: Thu May 25 2017 Trip spans 15 days
WestJet
WestJet
LGW
SEA
27h 22m
1 stop
SEA
LGW
17h 55m
1 stop
Depart: Thu Jul 27 2017 Return: Fri Aug 18 2017 Trip spans 23 days
Delta
Delta
LHR
SEA
16h 47m
1 stop
SEA
LHR
15h 55m
1 stop
Depart: Thu May 18 2017 Return: Mon May 22 2017 Trip spans 5 days
Air France
Air France
EDI
SEA
13h 21m
1 stop
SEA
EDI
18h 52m
1 stop
Depart: Wed Oct 25 2017 Return: Wed Nov 22 2017 Trip spans 29 days
Norwegian
Norwegian
LGW
SEA
9h 55m
nonstop
SEA
LGW
9h 30m
nonstop
Depart: Sat Aug 26 2017 Return: Mon Sep 4 2017 Trip spans 10 days
Virgin Atlantic
Virgin Atlantic
LHR
SEA
15h 02m
1 stop
SEA
LHR
9h 00m
nonstop
Depart: Wed Sep 27 2017 Return: Mon Oct 2 2017 Trip spans 6 days
KLM
KLM
LCY
SEA
17h 50m
2 stops
SEA
LCY
16h 25m
1 stop
Depart: Mon Sep 11 2017 Return: Sun Sep 24 2017 Trip spans 14 days
Icelandair
Icelandair
LHR
SEA
12h 35m
1 stop
SEA
LHR
11h 15m
1 stop
Depart: Sat Aug 26 2017 Return: Mon Sep 4 2017 Trip spans 10 days
Virgin Atlantic
Virgin Atlantic
LGW
SEA
15h 29m
1 stop
SEA
LGW
14h 10m
1 stop
Depart: Sun Sep 3 2017 Return: Sun Sep 17 2017 Trip spans 15 days
Thomas Cook Airlines
Thomas Cook Airlines
MAN
SEA
19h 07m
1 stop
SEA
MAN
19h 30m
1 stop
Depart: Fri Jun 2 2017 Return: Sat Jun 3 2017 Trip spans 2 days
KLM
KLM
MAN
SEA
22h 02m
2 stops
SEA
MAN
14h 39m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Here's why:

We’re not the seller.
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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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

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

London
only $531
only $518
only $481
Manchester
$634
Edinburgh
$940
Destination

Seattle
$481
Airlines Airline reviews

95 travelers who booked a flight from London to Seattle rated their chosen airlines with an average of 7.6.

Overall
7.8
Boarding
7.7
Crew
8.4
Comfort
7.2
Food
7.4
Entertainment
7.5