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 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 December. 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: 28 Dec - 3 Jan

Flights from just £368

£531

£521

£582

£518

£758

£485

£663

£368

£602

£596

£585

£648

NovemberDecemberJanuary

Flight Duration9 h and 30 mFlights between Seattle and London take, on average, 9 h and 30 m minutes, but the time can vary according to other factors

Cheapest flight£162Cheapest price for a flight between Seattle and London found by our customers in the last 72 hours

Origin airportSeattle-Tacoma International AirportWhen flying from Seattle to London

Destination airportsGatwick Airport, Heathrow Airport, London Luton Airport, London Stansted Airport, London City AirportWhen travelling from Seattle to London

High seasonMarchAccording to search data from our customers, March is the busiest time to fly from Seattle to London

Airlines flying this routeAir France, Klm Royal Dutch Airlines, Virgin AtlanticAirline(s) with flights between Seattle to London

One-way average Price£616The average price for a flight Seattle - London at Opodo is £616, based on the price of last 6 months

Best time to bookSeptemberAccording to real data June is the most popular time to book a flight to London when departing from Seattle

Airlines that fly from Seattle to London

British Airways

57£

Norwegian Air Shuttle

Distance: 4,784 mi

Seattle airports

Seattle-Tacoma International Airport (SEA)How far from city centre: 11 mi

London airports

Gatwick Airport (LGW)How far from city centre: 25 mi

Heathrow Airport (LHR)How far from city centre: 14 mi

London Luton Airport (LTN)How far from city centre: 28 mi

London Stansted Airport (STN)How far from city centre: 30 mi

London City Airport (LCY)How far from city centre: 8 mi

Book your Seattle to London flight

Search direct and connecting flights from Seattle to London (United Kingdom) with Opodo. When your results appear, sort them by timing or fare and book whichever option fits your plans best.

The cheapest fare booked on this route in recent days was £162, although the price you're shown will vary with your travel dates and departure times.

Flying non-stop from Seattle to London takes roughly 16 h and 5 m, whereas journeys with a layover will take longer.

Airports and airlines on the Seattle–London route

Plan your trip with confidence by checking the relevant airports and comparing the airlines that fly this route.

Departure airport: Seattle-Tacoma International Airport (SEA)
Arrival airport: Gatwick Airport (LGW)

Tips for cheaper flights from Seattle to London

A few ways to bring down the cost of your flight from Seattle to London:

Flexible dates: check fares across two or three departure days. Going a day earlier or later can make a real difference to what you pay.
Baggage allowance: see what's included in each fare before booking, so you're not stung by unexpected charges at the airport.
Airports on your route: double-check which airports you'll fly from and into, particularly if the city has more than one. It makes it easier to plan transfers and work out the full cost of getting around.

After a bigger saving? Book a Flight + Hotel package to combine the two in a single booking and unlock exclusive discounts on your stay in London. Adding car hire to the same booking can save you money too.

Frequently asked questions about flights from Seattle to London

On average, how much is the price of a flight from Seattle to London?

When you fly from Seattle to London the average price is £616. However, this price depends on many other factors such as seasonality or how far in advance the route has been booked.

How can I find cheap flights from Seattle to London at Opodo?

The cheapest price for a flight from Seattle to London is 162 £. At Opodo 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.

When is the best time to book a flight from Seattle to London?

The most popular months to book a flight from Seattle to London are June, September and July, based on the searches of our customers.

When is the best time to travel from Seattle to London?

The best time of the year to go to London when flying from Seattle depends on several preference factors like climate, seasonality and, of course, price. When it comes to popularity, September is the top 1º month to fly to London from Seattle in terms of searches from our customer, followed by August and July. If you prefer to avoid high peaks of turism, however, and escape a crowded period, February, January and March are the months with less volume of searchs for the route Seattle - London.

How long does the flight take to go from Seattle to London?

The total flight time between Seattle and London is of around 9 h and 30 m on average, considering an average distance of 4,784.25 mi, for both direct and indirect flights for the route (which may have 1 or more stops in other cities in between).

Which airports have flights between Seattle and London?

The main airport route flying between Seattle and London is: Seattle-Tacoma International Airport (SEA) to Gatwick Airport(LGW). This route is covered by the following airline(s):

Which are the airlines with flights from Seattle to London?

Airlines with direct flights departing from Seattle to London are:

Virgin Atlantic.
American Airlines.
Alaska Airlines.

Condor

Icelandair
Lufthansa

Plan your trip

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