Cheap Flights from London to Seattle, WA from $381

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On Cheapflightsplus.com you will find 7 direct and 136 connecting flights from London to Seattle. You can compare airfare deals from 25 airlines and multiple travel sites from $381, book and save on cheap plane tickets and last minute offers. Also check out LON-SEA flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip London to Seattle 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: $381 (one-way), $653 (round-trip).

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Best Flights from London to Seattle Today

Take a look at the list of non stop flights and flights with layovers from London to Seattle with the lowest price of $381. The fastest direct flight takes 9h 45m and the fastest connecting – 12h 25m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $508 Find flight	16:30 London Heathrow	18:20 Seattle Seattle-Tacoma Intl	9h 50m	British Airways	BA49
from $553 Find flight	09:50 London Heathrow	11:35 Seattle Seattle-Tacoma Intl	9h 45m	Iberia	IB3509
from $1039 Find flight	09:50 London Heathrow	11:35 Seattle Seattle-Tacoma Intl	9h 45m	Finnair	AY5451
from $1041 Find flight	16:30 London Heathrow	18:20 Seattle Seattle-Tacoma Intl	9h 50m	Iberia	IB3507
from $1088 Find flight	09:50 London Heathrow	11:35 Seattle Seattle-Tacoma Intl	9h 45m	Aer Lingus	EI8753
from $458 Find flight	13:05 London Gatwick	19:54+1 день Seattle Seattle-Tacoma Intl	38h 49m layover 24h 45m - New York	Z0	Z0701 HA4926
from $501 Find flight	13:25 London Heathrow	17:50 Seattle Seattle-Tacoma Intl	12h 25m layover 1h 20m - Dublin	Aer Lingus	EI163 EI53
from $559 Find flight	07:40 London Heathrow	17:50 Seattle Seattle-Tacoma Intl	18h 10m layover 7h 10m - Dublin	Aer Lingus	EI151 EI53
from $381 Find flight	21:20 London Gatwick	21:36+1 день Seattle Seattle-Tacoma Intl	32h 16m layover 10h 40m - Rome 3h 30m - Los Angeles	Aero Services Executive	W46004 N0411 HA6198
from $401 Find flight	19:40 London Gatwick	08:54+2 дня Seattle Seattle-Tacoma Intl	45h 14m layover 18h 35m - Paris 10h 55m - Los Angeles	Vueling	VY8945 N0311 HA6202
from $418 Find flight	14:40 London Gatwick	20:35+1 день Seattle Seattle-Tacoma Intl	37h 55m layover 3h 10m - Paris 19h 15m - Newark	Vueling	VY8947 N0301 HA4901
from $440 Find flight	14:40 London Gatwick	19:54+1 день Seattle Seattle-Tacoma Intl	37h 14m layover 3h 10m - Paris 18h 25m - New York	Vueling	VY8947 N0301 HA4926
from $440 Find flight	13:55 London Gatwick	19:32+1 день Seattle Seattle-Tacoma Intl	37h 37m layover 14h 0m - Athens 3h 26m - Los Angeles	Wizz Air UK	W95747 N0511 F91177
from $469 Find flight	14:40 London Gatwick	18:58+1 день Seattle Seattle-Tacoma Intl	36h 18m layover 3h 10m - Paris 17h 45m - Newark	Vueling	VY8947 N0301 HA4899
from $474 Find flight	14:40 London Gatwick	14:39+1 день Seattle Seattle-Tacoma Intl	31h 59m layover 3h 10m - Paris 13h 15m - New York	Vueling	VY8947 N0301 HA4925
from $480 Find flight	14:40 London Gatwick	14:39+1 день Seattle Seattle-Tacoma Intl	31h 59m layover 3h 10m - Paris 13h 15m - New York	Vueling	VY8947 N0301 AS23

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on August 22, 2025

Flight Schedule London to Seattle (Washington)

Full flight schedule will help you in detecting at what time planes fly from London to Seattle. 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
09:50 — 11:35	09:50 — 11:35 BA53 British Airways London — Seattle	9h 45m	Find flight from$528
09:50 — 11:35	09:50 — 11:35 IB3509 Iberia London — Seattle	9h 45m	Find flight from$553
09:50 — 11:35	09:50 — 11:35 AY5451 Finnair London — Seattle	9h 45m	Find flight from$1039
09:50 — 11:35	09:50 — 11:35 EI8753 Aer Lingus London — Seattle	9h 45m	Find flight from$1088
16:30 — 18:20	16:30 — 18:20 BA49 British Airways London — Seattle	9h 50m	Find flight from$508
16:30 — 18:20	16:30 — 18:20 IB3507 Iberia London — Seattle	9h 50m	Find flight from$1041
16:30 — 18:20	16:30 — 18:20 AY5449 Finnair London — Seattle	9h 50m	Find flight from$1049
07:40 — 17:50	07:50 — 09:10 EI151 Aer Lingus London — Dublin 7h 10m stop 16:30 — 18:15 EI53 Aer Lingus Dublin — Seattle	18h 10m including layover	Find flight from$559
08:50 — 17:50	08:50 — 10:15 EI153 Aer Lingus London — Dublin 5h 55m stop 16:30 — 18:15 EI53 Aer Lingus Dublin — Seattle	17h including layover	Find flight from$501
08:50 — 17:50	08:50 — 10:15 BA5953 British Airways London — Dublin 5h 55m stop 16:30 — 18:15 BA6149 British Airways Dublin — Seattle	17h including layover	Find flight from$583
09:50 — 17:50	09:50 — 11:15 EI155 Aer Lingus London — Dublin 4h 55m stop 16:30 — 18:15 EI53 Aer Lingus Dublin — Seattle	16h including layover	Find flight from$501
11:35 — 19:31	11:35 — 14:15 TS729 Air Transat London — Montreal 2h 30m stop 16:45 — 19:37 AC515 Air Canada Montreal — Seattle	15h 56m including layover	Find flight from$564
12:00 — 17:50	12:10 — 13:35 EI159 Aer Lingus London — Dublin 2h 45m stop 16:30 — 18:15 EI53 Aer Lingus Dublin — Seattle	13h 50m including layover	Find flight from$501
06:05 — 19:52	06:05 — 08:25 U22433 EasyJet London — Paris 4h 30m stop 12:55 — 14:08 WS9 WestJet Paris — Calgary 4h 52m stop 19:00 — 19:52 AS2226 Alaska Airlines Calgary — Seattle	21h 47m including layover	Find flight from$540
06:40 — 20:40	06:40 — 10:05 SK1530 SAS London — Hagersten 6h 35m stop 16:40 — 17:55 FI309 Icelandair Hagersten — Reykjavik 1h 50m stop 19:45 — 20:40 FI683 Icelandair Reykjavik — Seattle	22h including layover	Find flight from$540
07:10 — 20:40	06:55 — 10:20 BA776 British Airways London — Hagersten 6h 5m stop 16:40 — 17:55 FI309 Icelandair Hagersten — Reykjavik 1h 50m stop 19:45 — 20:40 FI683 Icelandair Reykjavik — Seattle	21h 30m including layover	Find flight from$534
11:00 — 20:40	11:00 — 14:35 D84452 Djibouti Airlines London — Hagersten 2h 5m stop 16:40 — 17:55 FI309 Icelandair Hagersten — Reykjavik 1h 50m stop 19:45 — 20:40 FI683 Icelandair Reykjavik — Seattle	17h 40m including layover	Find flight from$523
12:40 — 10:39 +1 day	12:40 — 15:40 TS123 Air Transat London — Toronto 4h 25m stop 20:05 — 21:50 PD655 Porter Airlines Toronto — Las Vegas 9h 55m stop 07:45 — 10:39 HA6135 Hawaiian Airlines Las Vegas — Seattle	29h 59m including layover	Find flight from$536
13:05 — 08:54 +1 day	13:05 — 15:55 Z0701 Z0 London — Newark 4h 4m stop 19:59 — 22:58 AS287 Alaska Airlines Newark — Los Angeles 7h 2m stop 06:00 — 08:54 AS1293 Alaska Airlines Los Angeles — Seattle	27h 49m including layover	Find flight from$448
13:55 — 19:32 +1 day	13:55 — 19:45 W95747 Wizz Air UK London — Athens 14h stop 09:45 — 13:15 N0511 N0 Athens — Los Angeles 3h 26m stop 16:41 — 19:32 F91177 Frontier Airlines Los Angeles — Seattle	37h 37m including layover	Find flight from$440
14:40 — 20:35 +1 day	14:40 — 17:05 VY8947 Vueling London — Paris 3h 10m stop 20:15 — 22:15 N0301 N0 Paris — Newark 19h 15m stop 17:30 — 20:35 HA4901 Hawaiian Airlines Newark — Seattle	37h 55m including layover	Find flight from$418
14:40 — 19:54 +1 day	14:40 — 17:05 VY8947 Vueling London — Paris 3h 10m stop 20:15 — 22:15 N0301 N0 Paris — New York 18h 25m stop 16:40 — 19:54 HA4926 Hawaiian Airlines New York — Seattle	37h 14m including layover	Find flight from$440
19:40 — 08:54 +2 days	19:40 — 22:05 VY8945 Vueling London — Paris 18h 35m stop 16:40 — 19:05 N0311 N0 Paris — Los Angeles 10h 55m stop 06:00 — 08:54 HA6202 Hawaiian Airlines Los Angeles — Seattle	45h 14m including layover	Find flight from$401
19:40 — 21:18 +2 days	19:40 — 22:05 VY8945 Vueling London — Paris 20h 45m stop 18:50 — 21:00 BF720 Bluebird Cargo Paris — Newark 21h 13m stop 18:13 — 21:18 HA4901 Hawaiian Airlines Newark — Seattle	57h 38m including layover	Find flight from$425
21:20 — 21:36 +1 day	21:20 — 00:55 W46004 Aero Services Executive London — Rome 10h 40m stop 11:35 — 15:15 N0411 N0 Rome — Los Angeles 3h 30m stop 18:45 — 21:36 HA6198 Hawaiian Airlines Los Angeles — Seattle	32h 16m including layover	Find flight from$381
21:20 — 21:18 +2 days	21:20 — 00:55 W46004 Aero Services Executive London — Rome 18h 10m stop 19:05 — 22:30 N0401 N0 Rome — Newark 19h 43m stop 18:13 — 21:18 HA4901 Hawaiian Airlines Newark — Seattle	55h 58m including layover	Find flight from$406
22:15 — 19:32 +1 day	22:15 — 03:50 A3609 Aegean Airlines London — Athens 5h 55m stop 09:45 — 13:15 N0511 N0 Athens — Los Angeles 3h 26m stop 16:41 — 19:32 F91177 Frontier Airlines Los Angeles — Seattle	29h 17m including layover	Find flight from$523

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

*Departure and arrival times - local. Updated on August 22, 2025

Flight Information

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

Distance between London and Seattle is 7714 miles. Time difference between the cities is 8h. Airplanes depart 06:00 to 22:15 from 10 London airports and arrive 06:00 to 22:15 to 3 Seattle airports. Average flight time is 9h 45m.

The fastest flight 9h 45m
Average flight time 9h 45m
The earliest flight 06:00
The latest flight 22:15
Distance 4794 ml

The cheapest months to travel to Seattle are august (from 381 $), september (from 401 $), june (from 465 $).

The most expensive months are november (from 872 $), february (from 798 $), december (from 797 $).

What is the lowest airfare London to Seattle?

The cheapest plane ticket found by our users is $381. This airfare is for economy class on one-way W46004 flight by Aero Services Executive for August 28, 2025 which leaves Gatwick in London at 21:20 am and arrives at Seattle Seattle-Tacoma Intl at 21:36.

Economy class

$381

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Business class

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First class

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Popular Airlines on the Route

The flight London — Seattle is served by 25 regular airlines and 8 low-cost airlines. Most of the flights on this route are operated by British Airways - 22 departures per week at the price of from $ 508 . And the most expensive tickets are offered by British Airways airline - from $ 1696.

Direct flights

There are 7 nonstop flights on the route. The fastest direct flight is BA53 by British Airways takes 9h 45m and the cheapest is W46004 by Aero Services Executive for $508.

BA - British Airways

from $508

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EI - Aer Lingus

from $1088

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AY - Finnair

from $1039

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IB - Iberia

from $553

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Connecting Flights

There are 136 flights with layovers on the route. The fastest connecting flight is EI163 by Aer Lingus takes 12h 25m and the cheapest is W46004 by Aero Services Executive for $381.

BA - British Airways

from $534

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W9 - Wizz Air UK

from $440

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VY - Vueling

from $401

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FI - Icelandair

from $654

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EI - Aer Lingus

from $501

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AF - Air France

from $748

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FR - Ryanair

from $642

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UA - United Airlines

from $784

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A3 - Aegean Airlines

from $523

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EW - Eurowings AG

from $687

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D8 - Djibouti Airlines

from $523

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DY - Norwegian

from $656

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Airports

You can fly from London to Seattle from 10 airports (London City, London-Waterloo, Heathrow, Luton, British Rail Terminal, London Biggin Hill, Stansted, Gatwick, Ebbsfleet International Rail St, Stratford International Rail St).

London airports

London City-LCY

from $601
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London-Waterloo-QQW

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Heathrow-LHR

from $501
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Luton-LTN

from $521
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British Rail Terminal-ZLX

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London Biggin Hill-BQH

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Stansted-STN

from $624
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Gatwick-LGW

from $381
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Ebbsfleet International Rail St-XQE

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Stratford International Rail St-XOF

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Seattle airports

Boeing Field International Airport-BFI

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Seattle-Tacoma Intl-SEA

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Kenmore Air Harbor SPB-LKE

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Airplanes

There are flights to Seattle from London by 25 airlines that use 1 aircraft brands. They range from huge modern airplanes to small-sized.

Boeing 767-300 (winglets)

from $658

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Top International Destinations from London

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.

London — Miami

from $55

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London — Boston

from $75

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London — Los Angeles

from $313

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London — Chicago

from $70

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London — Las Vegas

from $60

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London — Orlando

from $79

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London — Seattle

from $57

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London — San Francisco

from $58

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London — Atlanta

from $69

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London — Denver

from $59

Find

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»
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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.
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