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  1. Flights
  2. United Kingdom
  3. London
  4. Seattle, WA - London

Cheap Flights from Seattle, WA (SEA) to London (LON)

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Discover the cheapest flights from Seattle, WA to London
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Sat, Jun 13 - Wed, Jun 17
Aer Lingus
Aer Lingus1 stop
SEA - LON
Aer Lingus
Aer Lingus1 stop
LON - SEA
676$
672$
Prime price per passenger
Thu, May 7 - Fri, May 15
Turkish Airlines
Turkish Airlines1 stop
SEA - LON
Turkish Airlines
Turkish Airlines1 stop
LON - SEA
808$
784$
Prime price per passenger
Wed, May 27 - Fri, May 29
Scandinavian Airlines
Scandinavian Airlines1 stop
SEA - LON
Scandinavian Airlines
Scandinavian Airlines1 stop
LON - SEA
867$
841$
Prime price per passenger
Mon, Jun 1 - Tue, Jun 9
Scandinavian Airlines
Scandinavian Airlines1 stop
SEA - LON
Scandinavian Airlines
Scandinavian Airlines1 stop
LON - SEA
930$
894$
Prime price per passenger
Wed, Jul 1 - Sat, Jul 4
Scandinavian Airlines
Scandinavian Airlines1 stop
SEA - LON
Scandinavian Airlines
Scandinavian Airlines1 stop
LON - SEA
953$
929$
Prime price per passenger
Wed, Jul 8 - Thu, Jul 16
Icelandair
Icelandair1 stop
SEA - LON
American Airlines
American AirlinesDirect
LON - SEA
968$
Prime price per passenger
Mon, May 18
Icelandair
Icelandair1 stop
SEA - LON
392$
373$
Prime price per passenger
Fri, Jul 10
Icelandair
Icelandair1 stop
SEA - LON
392$
373$
Prime price per passenger
Thu, May 14
American Airlines
American Airlines1 stop
SEA - LON
426$
404$
Prime price per passenger
Wed, Jun 24
Aer Lingus
Aer Lingus1 stop
SEA - LON
515$
497$
Prime price per passenger
Sat, Jun 20
Aer Lingus
Aer Lingus1 stop
SEA - LON
515$
507$
Prime price per passenger
Wed, Jun 3
American Airlines
American AirlinesDirect
SEA - LON
557$
530$
Prime price per passenger
The prices shown on this page were available within the last 20 days for the specified periods and should not be considered the final price offered. Please note that availability and prices are subject to change.

Cheapest time to fly from Seattle, WA to London

If you’re planning to fly this route soon, keep in mind that the lowest fares are usually available at the end of April. Take advantage of this period to save on your flight tickets and make the most of your trip. Please note that prices may change after your search.
Filter by
week: Apr 27 - May 3
Flights from just $723
$723
$757
$816
$820
$805
$847
$861
$840
$903
$786
$794
$729
AprilMayJuneJuly
Flying Time10 h and 10 mWhen flying from Seattle, WA to London, this can take around 10 h and 10 m in flying time, however this flight duration can vary due to other factors
Cheapest flight$373The best price for flights from Seattle, WA to London offered by eDreams, which have been found by our customers in the last 3 days
Origin airportSeattle-Tacoma International AirportWhen flying from Seattle, WA to London
Destination airportsHeathrow Airport, Gatwick Airport, London Luton Airport, London Stansted Airport, London City AirportWhen traveling from Seattle, WA to London
Peak seasonMarchMarch is the busiest time to fly from Seattle, WA to London according to search data results from our customers
Airlines operating this routeVirgin Atlantic, British Airways, Alaska AirlinesAirline(s) that fly from Seattle, WA to London
One-way average Price$682A flight from Seattle, WA to London at eDreams will cost around $682, this being based on prices of the previous 6 months of data
Best time to bookMarchSeptember is one of the most frequent times to fly to London from Seattle, WA according to real data from our customers
Airlines that fly from Seattle, WA to London
Norwegian Air Shuttle
Norwegian Air Shuttle
178$
Icelandair
Icelandair
290$
Virgin Atlantic
Virgin Atlantic
714$

Local currency and cost comparison

MealMid-priced restaurant
8%The average meal is 8% more expensive in London than in Seattle, WA.
Seattle, WA$25.00
London$26.97
TrainLocal, one-way ticket
51%Trains are 51% more expensive in London than in Seattle, WA.
Seattle, WA$3.00
London$4.52
TaxiStandard daytime start rate
118%Taxis are 118% more expensive in London than in Seattle, WA.
Seattle, WA$2.60
London$5.66
CoffeeRegular cappuccino
12%Coffee in London is 12% cheaper than in Seattle, WA.
Seattle, WA$6.15
London$5.47
Exchange rate
1 USD = 0.74 GBP
1 GBP = 1.35 USD
Last revised on Mon, 04/20
Distance: 4784 miles
Seattle, WA airports
Seattle All Airports (SEA)How far from city center: 11 miles
London airports
Heathrow (LHR)How far from city center: 14 miles
Gatwick (LGW)How far from city center: 25 miles
Luton International (LTN)How far from city center: 27 miles
Stansted (STN)How far from city center: 30 miles
London City (LCY)How far from city center: 7 miles
Southend (SEN)How far from city center: 35 miles

Are you planning to travel to London for vacations, business or family visits? eDreams offers you the cheapest flights and best deals departing from Seattle, WA. With our fast search engine you will get a large selection of airfares from standard and low cost airlines worldwide and easily book your tickets for this route. If you are flexible we help you identify the cheapest day to fly to London and if you need to leave soon you can check our most convenient last minute fares. Read all the useful information about your next destination and proceed to the reservation, indicating your flight dates and completing your travel booking with hotels and car rental!

Frequently asked questions about flights from Seattle, WA to London

What are the benefits of booking flexible flight tickets?
Using the flexible flight ticket, you're guaranteed a refund or a rebooking option (without fees) in case of flight cancellations when travelling to United Kingdom. At eDreams have you covered!
On average, how much is the price of a flight from Seattle, WA to London?
When you fly from Seattle, WA to London the average price is $682. However, this price depends on many other factors such as seasonality or how far in advance the route has been booked.
For flights from Seattle, WA to London, how can I find the cheapest price?
The cheapest price for a flight from Seattle, WA to London is $373. At eDreams we use different machine learned based methodologies to find our costumers the best option available, considering airline combinations, stopovers and direct flights as well as different criteria for inbound and outbound journeys.
Is London more expensive than Seattle, WA to visit?
Looking at cab fares, a ride in London costs about $ 5.68 USD, 118% more expensive than Seattle, WA, with a fare of $ 2.60 USD,
while train tickets cost 51% more at London: $ 4.53 USD versus $ 3.00 USD at Seattle, WA.
If you compare the price of a lunch meal, however, you can find it from 27.05 USD in London, 8% more than the 25.00 USD in Seattle, WA.
The price of the coffee is around 11% cheaper in London, with an average of 5.47 USD, while in Seattle, WA the coffee costs 6.15 USD.
When booking, when is the best time to get the best prices for flights from Seattle, WA to London?
The most popular months to book a trip from Seattle, WA to London are January, May and February, based on the searches of our customers.
When is the best time to travel from Seattle, WA to London?
The best time of the year to visit London depends on lots of personal preferences, especially the price. Regarding popularity, June is the best month to fly to London from Seattle, WA in terms of searches from our customers, followed by July and May. If you prefer to avoid the busy season and get away from the crowds January, February and November are the months with fewer searches for Seattle, WA - London.

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