Find Deals on Flights from London to Seattle/Tacoma Intl (LON - SEA)

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.
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 London to Seattle/Tacoma Intl

(Round-trip)
Depart: Wed Apr 20 2016 Return: Sun May 1 2016 Trip spans 12 days
Icelandair
Icelandair
LGW
SEA
12h 35m
1 stop
SEA
LGW
11h 15m
1 stop
Depart: Sat Aug 27 2016 Return: Thu Sep 8 2016 Trip spans 13 days
WestJet
WestJet
LGW
SEA
35h 04m
2 stops
SEA
LGW
18h 55m
2 stops
Depart: Thu May 5 2016 Return: Mon May 23 2016 Trip spans 19 days
Icelandair
Icelandair
LHR
SEA
28h 35m
1 stop
SEA
LHR
19h 40m
1 stop
Depart: Tue Mar 15 2016 Return: Thu Mar 24 2016 Trip spans 10 days
Iberia
Iberia
LHR
SEA
20h 22m
2 stops
SEA
LHR
9h 20m
nonstop
Depart: Fri Mar 4 2016 Return: Thu Mar 24 2016 Trip spans 20 days
$1003
Select
American Airlines
American Airlines
LHR
SEA
9h 50m
nonstop
SEA
LHR
9h 20m
nonstop
Depart: Sat May 21 2016 Return: Sat Jun 4 2016 Trip spans 15 days
$1080
Select
SAS
SAS
LHR
SEA
21h 30m
2 stops
SEA
LHR
23h 35m
2 stops
Depart: Tue Feb 23 2016 Return: Tue Mar 8 2016 Trip spans 15 days
$1118
Select
Iberia
Iberia
LCY
SEA
39h 17m
2 stops
SEA
LCY
23h 00m
2 stops
Depart: Tue Apr 5 2016 Return: Fri Apr 29 2016 Trip spans 25 days
$1123
Select
United
United
LHR
SEA
13h 35m
1 stop
SEA
LHR
16h 24m
1 stop
Depart: Thu May 12 2016 Return: Thu May 26 2016 Trip spans 15 days
$1164
Select
Aer Lingus
Aer Lingus
LCY
SEA
19h 50m
2 stops
SEA
LCY
25h 11m
2 stops
Depart: Thu Apr 7 2016 Return: Wed Apr 20 2016 Trip spans 14 days
$1172
Select
Finnair
Finnair
LHR
SEA
9h 35m
nonstop
SEA
LHR
9h 15m
nonstop
Depart: Thu Aug 18 2016 Return: Thu Sep 1 2016 Trip spans 15 days
$1194
Select
Virgin Atlantic
Virgin Atlantic
LHR
SEA
10h 22m
nonstop
SEA
LHR
9h 50m
nonstop
Depart: Wed Jun 1 2016 Return: Thu Jul 28 2016 Trip spans 58 days
$1210
Select
KLM
KLM
LCY
SEA
14h 20m
1 stop
SEA
LCY
15h 40m
1 stop
Depart: Wed Apr 6 2016 Return: Tue Apr 26 2016 Trip spans 21 days
$4572
Select
American Airlines
American Airlines
LCY
SEA
20h 00m
2 stops
SEA
LCY
15h 30m
1 stop
Direct flights LON to SEA on Delta
Flight # Depart LHR Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
36 12:55 pm 4:20 pm Mar 13 - Mar 25
36 12:55 pm 3:20 pm Mar 1 - Mar 12
36 12:55 pm 3:20 pm Feb 19 - Feb 29
36 3:00 pm 5:25 pm Feb 25 - Feb 25
36 3:00 pm 5:25 pm Feb 20 - Feb 27
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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

Here's why:

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

We aggregate tons 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 don'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.

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 $893
only $1118
only $672
Destination

Seattle
$672