Flights from Seattle to London

Search and find cheap flights from Seattle to London (United Kingdom, Europe)
Search and find cheap flights from Seattle to London (United Kingdom, Europe)

Looking for the best tickets for Seattle to London?

Look no more. We’ve gone through the latest 8,025,754 fares to bring you all the insights you could possibly want.
Expect to pay
871 CAD for flights from Seattle to London leaving on 2017-09-01 and returning on 2017-10-06
Low 714 CAD
871 CAD
High 1,945 CAD
Choose my own dates
Best time to book
Cheapest time to buy a ticket for Seattle — London is approximately 57 days to departure.
Seattle to London flights are usually cheapest between 2 and 4 months before departure.
Days before departure
Best month
Cheapest time of year to fly to London from Seattle is September and November. Most expensive are June and December.
The cheapest flights from Seattle to London are currently available between September and October.
Impact on price
Cheapest airline
According to our data, Norwegian Air Shuttle, Virgin America and Westjet are the cheapest airlines to fly this route.
Popular airlines for this route are Norwegian Air Shuttle, Virgin America and Westjet.
Impact on price (additional fees may apply)
Norwegian Air Shuttle
+6%
Virgin America
+7%
Westjet
+9%
Air New Zealand
+11%
Delta Air Lines
+13%
United Airlines
+15%
Best time to fly
Seattle to London flights are approximately 12% more expensive in the afternoon than in the morning.
It's generally cheaper to take morning flights from Seattle to London.
Impact on price
Cheapest day
Cheapest day of week is typically Tuesday and the most expensive is typically Saturday.
Saturday is normally the most expensive day to fly, whilst Tuesday tends to be the cheapest.
Impact on price
Cheapest route
Fly Seattle Tacoma - Gatwick for the best Seattle to London flight prices saving up to 0% on average.
Of the possible routes between Seattle and London best prices tend to be found on Seattle Tacoma - Gatwick.
momondo compares flights to London from Seattle from 28 different sites.
Impact on price
Seattle Tacoma-Gatwick
+0%
Seattle Tacoma-London City Airport
+4%
Seattle Tacoma-Heathrow
+7%
Direct flights
There are direct flights from Seattle Tacoma to London all week with a flight time of 9 hours 0 minutes.
Direct flights available: 51 PER WEEK
Popular non-direct routes for this connection are Seattle Tacoma - Koeln/Bonn - Heathrow, Seattle Tacoma - Frankfurt Intl - London City Airport and Seattle Tacoma - Keflavik Intl - Heathrow.
You can fly from Seattle Tacoma to London indirect via Koeln/Bonn, Frankfurt Intl or Keflavik Intl.
Direct flights available on
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday

Get there quickly

Direct flights to London from Seattle
Return trip
18 Sep - 25 Sep
674 CAD
KiwiCA
SEA SEA
9h 20min
Direct
LON LON
LON LON
9h 55min
Direct
SEA SEA
Return trip
14 Aug - 31 Aug
715 CAD
OmegaTravelUS
SEA SEA
9h 0min
Direct
LON LON
LON LON
9h 40min
Direct
SEA SEA
Return trip
9 Aug - 22 Aug
893 CAD
TravelgenioCA
SEA SEA
9h 0min
Direct
LON LON
LON LON
9h 40min
Direct
SEA SEA

Go right away

Last minute flights from Seattle to London
Return trip
18 Jul - 31 Jul
1,672 CAD
KiwiCA
SEA SEA
18h 45min
1 stop
LON LON
LON LON
26h 0min
1 stop
SEA SEA
Return trip
16 Jul - 31 Jul
1,678 CAD
KiwiCA
SEA SEA
22h 55min
1 stop
LON LON
LON LON
26h 0min
1 stop
SEA SEA
Return trip
22 Jul - 30 Jul
1,763 CAD
KiwiCA
SEA SEA
28h 58min
1 stop
LON LON
LON LON
30h 6min
1 stop
SEA SEA

Go for less - experience more

Cheap flights from Seattle to London
Return trip
16 Jul - 27 Jul
1,663 CAD
StudentUniverse
SEA SEA
26h 0min
1 stop
LON LON
LON LON
16h 30min
1 stop
SEA SEA
Return trip
18 Jul - 31 Jul
1,672 CAD
KiwiCA
SEA SEA
18h 45min
1 stop
LON LON
LON LON
26h 0min
1 stop
SEA SEA
Return trip
16 Jul - 31 Jul
1,678 CAD
KiwiCA
SEA SEA
22h 55min
1 stop
LON LON
LON LON
26h 0min
1 stop
SEA SEA

Coming or going?

Cheap flights from London to Seattle
Return trip
26 Jun - 23 Aug
1,009 CAD
CFStudentUniverseUK
LON LON
22h 2min
1 stop
SEA SEA
SEA SEA
14h 43min
1 stop
LON LON
Return trip
27 Jun - 23 Aug
1,009 CAD
CFStudentUniverseUK
LON LON
17h 44min
1 stop
SEA SEA
SEA SEA
14h 43min
1 stop
LON LON
Return trip
29 Jun - 16 Jul
1,337 CAD
StudentUniverseUK
LON LON
15h 9min
1 stop
SEA SEA
SEA SEA
9h 0min
Direct
LON LON

Weather forecast for London

Going soon? Be prepared for the weather in London.
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