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: Tue Nov 14 2017 Return: Tue Nov 21 2017 Trip spans 8 days
Icelandair
Icelandair
SEA
LHR
20h 20m
1 stop
LHR
SEA
28h 25m
1 stop
Depart: Wed Feb 14 2018 Return: Mon Mar 19 2018 Trip spans 33 days
KLM
KLM
SEA
LHR
16h 50m
1 stop
LHR
SEA
16h 32m
1 stop
Depart: Wed Mar 14 2018 Return: Sun Mar 18 2018 Trip spans 5 days
British Airways
British Airways
SEA
LHR
15h 00m
1 stop
LHR
SEA
17h 55m
1 stop
Depart: Sun Mar 25 2018 Return: Mon Apr 9 2018 Trip spans 16 days
Finnair
Finnair
SEA
LHR
9h 30m
nonstop
LHR
SEA
9h 55m
nonstop
Depart: Sat Mar 17 2018 Return: Wed Apr 4 2018 Trip spans 19 days
Multiple Airlines
Multiple Airlines
SEA
LHR
21h 45m
1 stop
LHR
SEA
17h 15m
1 stop
Depart: Wed Nov 15 2017 Return: Thu Dec 7 2017 Trip spans 23 days
Icelandair
Icelandair
SEA
LHR
20h 20m
1 stop
LHR
SEA
12h 35m
1 stop
Depart: Sun Feb 18 2018 Return: Mon Mar 19 2018 Trip spans 29 days
KLM
KLM
SEA
LHR
15h 20m
1 stop
LHR
SEA
16h 32m
1 stop
Depart: Tue Nov 21 2017 Return: Sun Dec 3 2017 Trip spans 13 days
Icelandair
Icelandair
SEA
LHR
12h 00m
1 stop
LHR
SEA
12h 35m
1 stop
Depart: Sun Mar 4 2018 Return: Wed Mar 21 2018 Trip spans 17 days
Multiple Airlines
Multiple Airlines
SEA
LHR
9h 25m
nonstop
LHR
SEA
23h 30m
2 stops
Depart: Fri Feb 2 2018 Return: Fri Feb 16 2018 Trip spans 15 days
Finnair
Finnair
SEA
LHR
9h 25m
nonstop
LHR
SEA
9h 55m
nonstop
Depart: Sun Nov 19 2017 Return: Wed Nov 29 2017 Trip spans 11 days
British Airways
British Airways
SEA
LHR
15h 15m
1 stop
LHR
SEA
16h 26m
1 stop
Depart: Mon Feb 19 2018 Return: Mon Mar 19 2018 Trip spans 28 days
KLM
KLM
SEA
LHR
13h 10m
1 stop
LHR
SEA
16h 32m
1 stop
Depart: Thu Nov 23 2017 Return: Sun Dec 3 2017 Trip spans 11 days
Icelandair
Icelandair
SEA
LHR
12h 00m
1 stop
LHR
SEA
12h 35m
1 stop
Depart: Mon Mar 5 2018 Return: Wed Mar 14 2018 Trip spans 9 days
Multiple Airlines
Multiple Airlines
SEA
LHR
9h 25m
nonstop
LHR
SEA
24h 15m
2 stops
Depart: Wed Mar 14 2018 Return: Sun Mar 25 2018 Trip spans 12 days
Finnair
Finnair
SEA
LHR
16h 50m
1 stop
LHR
SEA
9h 55m
nonstop
Depart: Wed Jan 10 2018 Return: Wed Jan 17 2018 Trip spans 8 days
British Airways
British Airways
SEA
LHR
16h 20m
1 stop
LHR
SEA
18h 54m
1 stop
Depart: Sun Nov 26 2017 Return: Fri Dec 1 2017 Trip spans 6 days
Icelandair
Icelandair
SEA
LHR
12h 00m
1 stop
LHR
SEA
12h 35m
1 stop
Depart: Tue Feb 13 2018 Return: Mon Mar 19 2018 Trip spans 34 days
KLM
KLM
SEA
LHR
24h 30m
1 stop
LHR
SEA
16h 32m
1 stop
Depart: Wed Jan 17 2018 Return: Sun Feb 11 2018 Trip spans 26 days
British Airways
British Airways
SEA
LHR
16h 20m
1 stop
LHR
SEA
18h 54m
1 stop
Depart: Fri Mar 2 2018 Return: Wed Mar 14 2018 Trip spans 12 days
Multiple Airlines
Multiple Airlines
SEA
LHR
9h 25m
nonstop
LHR
SEA
9h 55m
nonstop
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 5:50 am Oct 28 - Oct 28
6232 1:20 pm 6:50 am Sep 2 - Oct 23
6232 1:30 pm 7:00 am Sep 3 - Oct 27
6232 2:40 pm 7:05 am Nov 2 - Nov 4
6127 7:15 pm 12:25 pm Oct 1 - Oct 27
6127 7:20 pm 11:45 am Oct 28 - Nov 4
6127 7:35 pm 12:00 pm Nov 3 - Nov 3
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

Seattle
$564
Destination

London
$564
Airlines Airline reviews

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

Overall
7.9
Boarding
8.2
Crew
8.4
Comfort
7.3
Food
7.4
Entertainment
7.8