Find Deals on 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
Students
under 26
The price shown for each flight will be the average for all passengers including any infants.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from United Kingdom to Seattle

(Round-trip)
Depart: Thu Jan 12 2017 Return: Thu Jan 19 2017 Trip spans 8 days
British Airways
British Airways
LHR
SEA
9h 50m
nonstop
SEA
LHR
14h 45m
1 stop
Depart: Wed May 10 2017 Return: Mon May 22 2017 Trip spans 13 days
SWISS
SWISS
LCY
SEA
21h 34m
2 stops
SEA
LCY
22h 15m
2 stops
Depart: Thu Mar 16 2017 Return: Wed Mar 29 2017 Trip spans 14 days
Icelandair
Icelandair
MAN
SEA
12h 15m
1 stop
SEA
MAN
11h 05m
1 stop
Depart: Fri Mar 17 2017 Return: Sun Apr 2 2017 Trip spans 17 days
Virgin Atlantic
Virgin Atlantic
LGW
SEA
18h 15m
1 stop
SEA
LGW
17h 20m
1 stop
Depart: Mon Mar 20 2017 Return: Wed Apr 12 2017 Trip spans 24 days
KLM
KLM
LCY
SEA
31h 35m
2 stops
SEA
LCY
13h 20m
1 stop
Depart: Wed Jun 21 2017 Return: Mon Aug 7 2017 Trip spans 48 days
Lufthansa
Lufthansa
LCY
SEA
17h 25m
2 stops
SEA
LCY
18h 20m
1 stop
Depart: Mon Dec 12 2016 Return: Wed Dec 28 2016 Trip spans 17 days
Delta
Delta
LGW
SEA
18h 29m
1 stop
SEA
LGW
17h 20m
1 stop
Depart: Thu Jun 1 2017 Return: Tue Jun 20 2017 Trip spans 20 days
Aer Lingus
Aer Lingus
EDI
SEA
26h 45m
2 stops
SEA
EDI
18h 00m
2 stops
Depart: Mon Jun 19 2017 Return: Mon Jul 10 2017 Trip spans 22 days
Thomas Cook Airlines
Thomas Cook Airlines
GLA
SEA
16h 00m
1 stop
SEA
GLA
15h 10m
1 stop
Depart: Wed Dec 28 2016 Return: Tue Jan 10 2017 Trip spans 14 days
United
United
EDI
SEA
24h 15m
2 stops
SEA
EDI
33h 50m
2 stops
Depart: Wed Mar 1 2017 Return: Thu Mar 9 2017 Trip spans 9 days
British Airways
British Airways
LGW
SEA
21h 41m
2 stops
SEA
LGW
19h 45m
2 stops
Depart: Thu Mar 9 2017 Return: Mon Mar 13 2017 Trip spans 4 days
British Airways
British Airways
LHR
SEA
9h 50m
nonstop
SEA
LHR
9h 30m
nonstop
Depart: Fri Apr 28 2017 Return: Sat May 6 2017 Trip spans 9 days
Icelandair
Icelandair
LGW
SEA
12h 35m
1 stop
SEA
LGW
11h 15m
1 stop
Depart: Fri Mar 31 2017 Return: Sat Apr 15 2017 Trip spans 16 days
KLM
KLM
LCY
SEA
14h 09m
1 stop
SEA
LCY
15h 18m
1 stop
Depart: Sun Apr 23 2017 Return: Fri May 5 2017 Trip spans 13 days
Virgin Atlantic
Virgin Atlantic
LHR
SEA
9h 40m
nonstop
SEA
LHR
13h 40m
1 stop
Depart: Tue Feb 7 2017 Return: Tue Feb 21 2017 Trip spans 15 days
British Airways
British Airways
LHR
SEA
9h 50m
nonstop
SEA
LHR
14h 45m
1 stop
Depart: Mon Jun 19 2017 Return: Thu Jun 29 2017 Trip spans 11 days
Lufthansa
Lufthansa
LCY
SEA
24h 50m
1 stop
SEA
LCY
18h 20m
1 stop
Depart: Wed Feb 22 2017 Return: Tue Mar 21 2017 Trip spans 27 days
Icelandair
Icelandair
MAN
SEA
12h 15m
1 stop
SEA
MAN
11h 05m
1 stop
Depart: Fri May 26 2017 Return: Sun Jun 4 2017 Trip spans 10 days
KLM
KLM
LCY
SEA
14h 00m
1 stop
SEA
LCY
13h 34m
1 stop
Depart: Wed Mar 15 2017 Return: Wed Mar 22 2017 Trip spans 8 days
British Airways
British Airways
LHR
SEA
16h 03m
1 stop
SEA
LHR
13h 50m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

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.

We compile tonnes of data for you
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.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

London
only $588
only $620
only $592
Manchester
$662
Glasgow
$981
Edinburgh
$927
Destination

Seattle
$588
Airlines Airline reviews

60 travelers who booked a flight from London to Seattle rated their chosen airlines with an average of 7.8.

Overall
7.9
Boarding
7.6
Crew
8.5
Comfort
7.2
Food
7.6
Entertainment
7.7