Find Cheap Flights from Seattle/Tacoma Intl to London Heathrow (SEA - LHR)

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 Heathrow

(Round-trip)
Depart: Thu Dec 7 2017 Return: Thu Dec 14 2017 Trip spans 8 days
Icelandair
Icelandair
SEA
LHR
12h 00m
1 stop
LHR
SEA
12h 35m
1 stop
Depart: Fri Mar 16 2018 Return: Sun Mar 25 2018 Trip spans 10 days
British Airways
British Airways
SEA
LHR
9h 25m
nonstop
LHR
SEA
9h 55m
nonstop
Depart: Thu Nov 30 2017 Return: Mon Dec 11 2017 Trip spans 12 days
Icelandair
Icelandair
SEA
LHR
20h 20m
1 stop
LHR
SEA
12h 35m
1 stop
Depart: Fri Dec 1 2017 Return: Mon Dec 11 2017 Trip spans 11 days
Icelandair
Icelandair
SEA
LHR
20h 20m
1 stop
LHR
SEA
12h 35m
1 stop
Depart: Sat Dec 2 2017 Return: Mon Dec 11 2017 Trip spans 10 days
Icelandair
Icelandair
SEA
LHR
20h 20m
1 stop
LHR
SEA
12h 35m
1 stop
Depart: Mon Dec 4 2017 Return: Sun Dec 10 2017 Trip spans 7 days
Icelandair
Icelandair
SEA
LHR
20h 20m
1 stop
LHR
SEA
12h 35m
1 stop
Depart: Tue Dec 5 2017 Return: Sun Dec 10 2017 Trip spans 6 days
Icelandair
Icelandair
SEA
LHR
12h 00m
1 stop
LHR
SEA
12h 35m
1 stop
Depart: Wed Dec 6 2017 Return: Sun Dec 10 2017 Trip spans 5 days
Icelandair
Icelandair
SEA
LHR
12h 00m
1 stop
LHR
SEA
12h 35m
1 stop
Depart: Tue Oct 31 2017 Return: Mon Nov 13 2017 Trip spans 14 days
Icelandair
Icelandair
SEA
LHR
20h 20m
1 stop
LHR
SEA
12h 35m
1 stop
Depart: Tue Nov 7 2017 Return: Sun Nov 12 2017 Trip spans 6 days
Icelandair
Icelandair
SEA
LHR
12h 00m
1 stop
LHR
SEA
28h 25m
1 stop
Depart: Sun Nov 12 2017 Return: Thu Nov 30 2017 Trip spans 19 days
Icelandair
Icelandair
SEA
LHR
20h 20m
1 stop
LHR
SEA
28h 25m
1 stop
Depart: Tue Nov 14 2017 Return: Thu Nov 30 2017 Trip spans 17 days
Icelandair
Icelandair
SEA
LHR
12h 00m
1 stop
LHR
SEA
12h 35m
1 stop
Depart: Wed Nov 15 2017 Return: Thu Nov 30 2017 Trip spans 16 days
Icelandair
Icelandair
SEA
LHR
12h 00m
1 stop
LHR
SEA
12h 35m
1 stop
Depart: Thu Nov 16 2017 Return: Tue Nov 28 2017 Trip spans 13 days
Icelandair
Icelandair
SEA
LHR
12h 00m
1 stop
LHR
SEA
28h 25m
1 stop
Depart: Thu Nov 23 2017 Return: Fri Dec 1 2017 Trip spans 9 days
Icelandair
Icelandair
SEA
LHR
20h 20m
1 stop
LHR
SEA
28h 25m
1 stop
Depart: Fri Nov 24 2017 Return: Wed Nov 29 2017 Trip spans 6 days
Icelandair
Icelandair
SEA
LHR
12h 00m
1 stop
LHR
SEA
12h 35m
1 stop
Depart: Sun Nov 26 2017 Return: Wed Nov 29 2017 Trip spans 4 days
Icelandair
Icelandair
SEA
LHR
20h 20m
1 stop
LHR
SEA
12h 35m
1 stop
Depart: Tue Nov 28 2017 Return: Tue Dec 5 2017 Trip spans 8 days
Icelandair
Icelandair
SEA
LHR
12h 00m
1 stop
LHR
SEA
28h 25m
1 stop
Depart: Wed Nov 29 2017 Return: Fri Dec 15 2017 Trip spans 17 days
Icelandair
Icelandair
SEA
LHR
12h 00m
1 stop
LHR
SEA
12h 35m
1 stop
Depart: Fri Dec 1 2017 Return: Fri Dec 8 2017 Trip spans 8 days
Icelandair
Icelandair
SEA
LHR
12h 00m
1 stop
LHR
SEA
12h 35m
1 stop
Direct flights SEA to LHR on American Airlines
Flight # Depart SEA Arrive LHR Sun Mon Tue Wed Thu Fri Sat Valid Between
6232 1:15 pm 6:45 am Sep 7 - Oct 26
6232 1:20 pm 6:50 am Sep 2 - Oct 23
6232 1:20 pm 5:50 am Oct 28 - Oct 28
6232 1:30 pm 7:00 am Sep 3 - Oct 27
6127 7:15 pm 12:25 pm Oct 1 - Oct 27
6127 7:15 pm 12:25 pm Sep 2 - Sep 30
6127 7:20 pm 11:45 am Oct 28 - Nov 4
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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^ The fares displayed in KAYAK ads found on other sites include all taxes and fees for economy class travel and were found by KAYAK users in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.
Airports
Origin

Seattle
$546
Destination

London
$546
Airlines Airline reviews

83 travelers who booked a flight from Seattle to London rated their chosen airlines with an average of 7.9.

Overall
8.1
Boarding
8.3
Crew
8.6
Comfort
7.5
Food
7.5
Entertainment
8.0