Cheap Flights from Seattle, WA to London from $199

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On Cheapflightsplus.com you will find 8 direct and 380 connecting flights from Seattle to London. You can compare airfare deals from 21 airlines and multiple travel sites from $199, book and save on cheap plane tickets and last minute offers. Also check out SEA-LON flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Seattle to London Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $199 (one-way), $341 (round-trip).

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Best Flights from Seattle to London Today

Take a look at the list of non stop flights and flights with layovers from Seattle to London with the lowest price of $199. The fastest direct flight takes 9h 25m and the fastest connecting – 11h 35m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $384 Find flight	18:50 Seattle Seattle-Tacoma Intl	12:15+1 день London Heathrow	9h 25m	British Airways	BA48
from $411 Find flight	18:50 Seattle Seattle-Tacoma Intl	12:15+1 день London Heathrow	9h 25m	Iberia	IB3506
from $461 Find flight	13:45 Seattle Seattle-Tacoma Intl	07:10+1 день London Heathrow	9h 25m	Iberia	IB3508
from $513 Find flight	18:50 Seattle Seattle-Tacoma Intl	12:15+1 день London Heathrow	9h 25m	Alaska Airlines	AS5270
from $528 Find flight	18:50 Seattle Seattle-Tacoma Intl	12:15+1 день London Heathrow	9h 25m	Finnair	AY5448
from $571 Find flight	13:45 Seattle Seattle-Tacoma Intl	07:10+1 день London Heathrow	9h 25m	Alaska Airlines	AS5272
from $585 Find flight	13:45 Seattle Seattle-Tacoma Intl	07:10+1 день London Heathrow	9h 25m	Finnair	AY5450
from $199 Find flight	14:35 Seattle Seattle-Tacoma Intl	10:50+1 день London Heathrow	12h 15m layover 1h 20m - Reykjavik	Icelandair	FI680 FI450
from $248 Find flight	18:31 Seattle Seattle-Tacoma Intl	10:35+2 дня London Gatwick	32h 4m layover 19h 45m - Las Vegas	Alaska Airlines	AS339 Z0778
from $323 Find flight	15:45 Seattle Seattle-Tacoma Intl	07:55+2 дня London Heathrow	32h 10m layover 20h 11m - Boston	Alaska Airlines	AS460 VS158
from $203 Find flight	07:25 Seattle Seattle-Tacoma Intl	12:40+1 день London Heathrow	21h 15m layover 1h 55m - Newark 4h 25m - Lisbon	TAP Portugal	TP8561 TP202 TP1352
from $277 Find flight	17:26 Seattle Seattle-Tacoma Intl	12:50+2 дня London Heathrow	35h 24m layover 10h 46m - Los Angeles 9h 57m - Calgary	Spirit Airlines	NK261 WS1513 WS18
from $281 Find flight	20:10 Seattle Seattle-Tacoma Intl	12:50+2 дня London Heathrow	32h 40m layover 12h 6m - Phoenix 5h 48m - Calgary	Alaska Airlines	AS644 WS1403 WS18
from $281 Find flight	17:55 Seattle Seattle-Tacoma Intl	12:50+3 дня London Heathrow	58h 55m layover 23h 22m - Phoenix 20h 54m - Calgary	Alaska Airlines	AS632 WS1539 WS18
from $285 Find flight	10:35 Seattle Seattle-Tacoma Intl	12:50+1 день London Heathrow	18h 15m layover 1h 28m - Vancouver 5h 30m - Calgary	Air Canada	AC8803 AC212 WS18
from $286 Find flight	19:58 Seattle Seattle-Tacoma Intl	12:50+2 дня London Heathrow	32h 52m layover 8h 17m - Los Angeles 9h 57m - Calgary	Alaska Airlines	AS1223 WS1513 WS18

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on January 21, 2025

Flight Schedule Seattle (Washington) to London

Full flight schedule will help you in detecting at what time planes fly from Seattle to London. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.

Departure	Flight Details	Flight Duration	Price
13:45 — 07:10 +1 day	13:45 — 07:10 BA52 British Airways Seattle — London	9h 25m	Find flight from$429
13:45 — 07:10 +1 day	13:45 — 07:10 IB3508 Iberia Seattle — London	9h 25m	Find flight from$461
13:45 — 07:10 +1 day	13:45 — 07:10 AS5272 Alaska Airlines Seattle — London	9h 25m	Find flight from$571
13:45 — 07:10 +1 day	13:45 — 07:10 AY5450 Finnair Seattle — London	9h 25m	Find flight from$585
18:50 — 12:15 +1 day	18:50 — 12:15 BA48 British Airways Seattle — London	9h 25m	Find flight from$384
18:50 — 12:15 +1 day	18:50 — 12:15 IB3506 Iberia Seattle — London	9h 25m	Find flight from$411
18:50 — 12:15 +1 day	18:50 — 12:15 AS5270 Alaska Airlines Seattle — London	9h 25m	Find flight from$513
18:50 — 12:15 +1 day	18:50 — 12:15 AY5448 Finnair Seattle — London	9h 25m	Find flight from$528
06:15 — 06:00 +1 day	06:05 — 14:29 AS280 Alaska Airlines Seattle — New York 3h 42m stop 18:15 — 06:00 Z0702 Z0 New York — London	15h 45m including layover	Find flight from$341
14:35 — 10:50 +1 day	14:30 — 06:10 FI680 Icelandair Seattle — Reykjavik 1h 20m stop 07:40 — 10:50 FI450 Icelandair Reykjavik — London	12h 15m including layover	Find flight from$199
14:35 — 19:30 +1 day	14:35 — 06:15 FI680 Icelandair Seattle — Reykjavik 10h 5m stop 16:20 — 19:30 FI454 Icelandair Reykjavik — London	20h 55m including layover	Find flight from$199
18:31 — 10:35 +2 days	18:28 — 21:00 AS339 Alaska Airlines Seattle — Las Vegas 19h 45m stop 16:45 — 10:35 Z0778 Z0 Las Vegas — London	32h 4m including layover	Find flight from$248
05:30 — 12:50 +1 day	05:30 — 07:55 NK176 Spirit Airlines Seattle — Las Vegas 5h 25m stop 13:20 — 17:20 WS1401 WestJet Las Vegas — Calgary 3h 50m stop 21:10 — 12:50 WS18 WestJet Calgary — London	23h 20m including layover	Find flight from$305
07:25 — 12:40 +1 day	07:12 — 15:32 TP8561 TAP Portugal Seattle — Newark 1h 55m stop 17:45 — 05:55 TP202 TAP Portugal Newark — Lisbon 4h 25m stop 09:45 — 12:40 TP1352 TAP Portugal Lisbon — London	21h 15m including layover	Find flight from$203
07:25 — 22:40 +1 day	07:12 — 15:32 TP8561 TAP Portugal Seattle — Newark 1h 55m stop 19:55 — 07:45 TP202 TAP Portugal Newark — Lisbon 14h 25m stop 20:20 — 22:55 TP1366 TAP Portugal Lisbon — London	31h 15m including layover	Find flight from$204
08:04 — 14:25 +1 day	08:04 — 16:29 AS34 Alaska Airlines Seattle — Newark 6h 31m stop 23:00 — 12:00 BF721 Bluebird Cargo Newark — Paris 2h 10m stop 14:10 — 14:25 VY8960 Vueling Paris — London	22h 21m including layover	Find flight from$322
08:31 — 12:50 +1 day	08:31 — 11:06 AS612 Alaska Airlines Seattle — Las Vegas 2h 14m stop 13:20 — 17:20 WS1401 WestJet Las Vegas — Calgary 3h 50m stop 21:10 — 12:50 WS18 WestJet Calgary — London	20h 19m including layover	Find flight from$312
09:01 — 21:40 +1 day	09:01 — 17:29 AS398 Alaska Airlines Seattle — Newark 5h 31m stop 23:00 — 12:00 BF721 Bluebird Cargo Newark — Paris 9h 25m stop 21:25 — 21:40 U22442 EasyJet Paris — London	28h 39m including layover	Find flight from$324
09:37 — 10:50 +1 day	09:19 — 13:04 F93406 Frontier Airlines Seattle — Denver 2h 15m stop 15:40 — 06:05 FI670 Icelandair Denver — Reykjavik 1h 30m stop 07:35 — 10:50 FI450 Icelandair Reykjavik — London	17h 13m including layover	Find flight from$346
10:35 — 12:50 +1 day	10:35 — 11:42 AC8803 Air Canada Seattle — Vancouver 1h 28m stop 13:10 — 15:40 AC212 Air Canada Vancouver — Calgary 5h 30m stop 21:10 — 12:50 WS18 WestJet Calgary — London	18h 15m including layover	Find flight from$285
10:35 — 12:50 +1 day	10:35 — 11:42 AC8803 Air Canada Seattle — Vancouver 3h 58m stop 15:40 — 18:10 WS118 WestJet Vancouver — Calgary 3h stop 21:10 — 12:50 WS18 WestJet Calgary — London	18h 15m including layover	Find flight from$357
11:23 — 12:50 +1 day	11:23 — 12:29 AS3334 Alaska Airlines Seattle — Vancouver 5h 16m stop 17:45 — 20:16 WS122 WestJet Vancouver — Calgary 54m stop 21:10 — 12:50 WS18 WestJet Calgary — London	17h 27m including layover	Find flight from$314
11:23 — 12:50 +1 day	11:23 — 12:29 AS3334 Alaska Airlines Seattle — Vancouver 3h 11m stop 15:40 — 18:11 WS118 WestJet Vancouver — Calgary 2h 59m stop 21:10 — 12:50 WS18 WestJet Calgary — London	17h 27m including layover	Find flight from$322
15:15 — 15:40 +1 day	15:15 — 18:07 WS3613 WestJet Seattle — Calgary 1h 23m stop 19:30 — 12:30 WS10 WestJet Calgary — Paris 3h 5m stop 15:35 — 15:40 U28400 EasyJet Paris — London	16h 25m including layover	Find flight from$320
15:15 — 10:15 +2 days	15:15 — 18:07 WS3613 WestJet Seattle — Calgary 1h 23m stop 19:30 — 12:30 WS10 WestJet Calgary — Paris 21h 35m stop 10:05 — 10:15 U26336 EasyJet Paris — London	35h including layover	Find flight from$321
17:26 — 12:50 +2 days	17:26 — 20:14 NK261 Spirit Airlines Seattle — Los Angeles 10h 46m stop 07:00 — 11:13 WS1513 WestJet Los Angeles — Calgary 9h 57m stop 21:10 — 12:50 WS18 WestJet Calgary — London	35h 24m including layover	Find flight from$277
17:26 — 12:50 +2 days	17:26 — 20:14 NK261 Spirit Airlines Seattle — Los Angeles 16h 41m stop 12:55 — 17:09 WS1511 WestJet Los Angeles — Calgary 4h 1m stop 21:10 — 12:50 WS18 WestJet Calgary — London	35h 24m including layover	Find flight from$277
19:51 — 12:50 +3 days	19:51 — 22:34 F94830 Frontier Airlines Seattle — Las Vegas 19h 56m stop 18:30 — 22:25 WS1585 WestJet Las Vegas — Calgary 22h 45m stop 21:10 — 12:50 WS18 WestJet Calgary — London	56h 59m including layover	Find flight from$306
19:58 — 12:50 +2 days	19:58 — 22:43 AS1223 Alaska Airlines Seattle — Los Angeles 8h 17m stop 07:00 — 11:13 WS1513 WestJet Los Angeles — Calgary 9h 57m stop 21:10 — 12:50 WS18 WestJet Calgary — London	32h 52m including layover	Find flight from$286
20:10 — 12:50 +2 days	20:10 — 23:59 AS644 Alaska Airlines Seattle — Phoenix 12h 6m stop 12:05 — 15:22 WS1403 WestJet Phoenix — Calgary 5h 48m stop 21:10 — 12:50 WS18 WestJet Calgary — London	32h 40m including layover	Find flight from$281
21:16 — 10:35 +2 days	21:16 — 23:59 AS1164 Alaska Airlines Seattle — San Diego 8h 21m stop 08:20 — 09:45 AS3342 Alaska Airlines San Diego — Las Vegas 7h stop 16:45 — 10:35 Z0778 Z0 Las Vegas — London	29h 19m including layover	Find flight from$310
22:51 — 12:50 +2 days	22:51 — 23:55 AS3306 Alaska Airlines Seattle — Vancouver 16h 50m stop 16:45 — 19:16 WS120 WestJet Vancouver — Calgary 1h 54m stop 21:10 — 12:50 WS18 WestJet Calgary — London	29h 59m including layover	Find flight from$314
22:51 — 12:50 +2 days	22:51 — 23:55 AS3306 Alaska Airlines Seattle — Vancouver 17h 50m stop 17:45 — 20:16 WS122 WestJet Vancouver — Calgary 54m stop 21:10 — 12:50 WS18 WestJet Calgary — London	29h 59m including layover	Find flight from$314

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on January 21, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Seattle to London depends on and how to choose the most interesting flight option for you.

Distance between Seattle and London is 7714 miles. Time difference between the cities is 8h. Airplanes depart 05:02 to 23:59 from 3 Seattle airports and arrive 05:02 to 23:59 to 10 London airports. Average flight time is 9h 25m.

The fastest flight 9h 25m
Average flight time 9h 25m
The earliest flight 05:02
The latest flight 23:59
Distance 4794 ml

The cheapest months to travel to London are january (from 199 $), november (from 213 $), february (from 245 $).

The most expensive months are december (from 276 $), february (from 245 $), november (from 213 $).

What is the lowest airfare Seattle to London?

The cheapest plane ticket found by our users is $199. This airfare is for economy class on one-way FI680 flight by Icelandair for January 22, 2025 which leaves Seattle-Tacoma Intl in Seattle at 14:35 am and arrives at London Heathrow at 19:30.

Economy class

$199

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Business class

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First class

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Popular Airlines on the Route

The flight Seattle — London is served by 21 regular airline and 3 low-cost airlines. Most of the flights on this route are operated by Condor Airlines - 15 departures per week at the price of from $ 486 . And the most expensive tickets are offered by All Nippon Airways airline - from $ 10335.

Direct flights

There are 8 nonstop flights on the route. The fastest direct flight is BA48 by British Airways takes 9h 25m and the cheapest is FI680 by Icelandair for $384.

AS - Alaska Airlines

from $513

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AY - Finnair

from $528

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IB - Iberia

from $411

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BA - British Airways

from $384

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See more direct flights

Connecting Flights

There are 380 flights with layovers on the route. The fastest connecting flight is BA6148 by British Airways takes 11h 35m and the cheapest is FI680 by Icelandair for $199.

DE - Condor Airlines

from $486

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AC - Air Canada

from $285

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EI - Aer Lingus

from $523

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UA - United Airlines

from $427

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AS - Alaska Airlines

from $248

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LH - Lufthansa

from $398

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FI - Icelandair

from $199

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OS - Austrian Airlines

from $559

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OZ - Asiana Airlines

from $5826

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LX - SWISS International Air Lines

from $435

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F9 - Frontier Airlines

from $306

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TK - Turkish Airlines

from $654

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See more connecting flights

Airports

You can fly from Seattle to London from 3 airports (Boeing Field International Airport, Seattle-Tacoma Intl, Kenmore Air Harbor SPB).

Seattle airports

Boeing Field International Airport-BFI

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Seattle-Tacoma Intl-SEA

from $199
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Kenmore Air Harbor SPB-LKE

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London airports

London City-LCY

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London-Waterloo-QQW

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Heathrow-LHR

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Luton-LTN

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British Rail Terminal-ZLX

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London Biggin Hill-BQH

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Stansted-STN

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Gatwick-LGW

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Ebbsfleet International Rail St-XQE

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Stratford International Rail St-XOF

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Airplanes

There are flights to London from Seattle by 21 airlines that use 2 aircraft brands. They range from huge modern airplanes to small-sized.

Boeing 757-200 (winglets)

from $199

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Boeing 737-800

from $203

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Top Domestic Destinations from Seattle

You may also consider searching for discounted plane tickets to some other popular places from Seattle within United States.

Seattle — Spokane

from $65

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Seattle — Phoenix

from $67

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Seattle — Los Angeles

from $53

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Seattle — Houston

from $59

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Seattle — Charlotte

from $63

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Seattle — Miami

from $66

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Seattle — Milwaukee

from $75

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Seattle — Tucson

from $79

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Seattle — Denver

from $243

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Seattle — San Antonio

from $54

Find

Top International Destinations from Seattle

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

Seattle — Frankfurt

from $60

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Seattle — Sydney

from $56

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Seattle — Dublin

from $76

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Seattle — London

from $70

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Seattle — Berlin

from $67

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Seattle — Rome

from $59

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Seattle — Manila

from $56

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Seattle — Barcelona

from $78

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Seattle — Dubai

from $79

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Seattle — Venice

from $53

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How to book a plane ticket yourself?

Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
To find a plane ticket, please select dates.