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 London to Seattle

If you’re planning to fly this route soon, keep in mind that the lowest fares are usually available in the middle of February. 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: 9 Feb - 15 Feb

Flights from just £596

£1,023

£1,806

£1,134

£717

£778

£656

£719

£596

£907

£624

£783

£731

DecemberJanuaryFebruaryMarch

Flight Duration18 h and 40 mFlights between London and Seattle take, on average, 18 h and 40 m minutes, but the time can vary according to other factors

Cheapest flight£291Cheapest price for a flight between London and Seattle found by our customers in the last 72 hours

Departing AirportHeathrowThe airport Heathrow is the departure airport operating flights between London and Seattle

Arriving AirportSeattle All Airports Flights departing London with Seattle as destination arrive at Seattle All Airports

High seasonJanuaryAccording to search data from our customers, January is the busiest time to fly from London to Seattle

Airlines flying this routeBritish Airways, Virgin Atlantic, American AirlinesAirline(s) with flights between London to Seattle

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

Airlines that fly from London to Seattle

Klm Royal Dutch Airlines

Currency and price comparison

TrainLocal, one-way ticket

36%Trains in Seattle are 36% cheaper than in London.

London£3.50

Seattle£2.24

MealMid-priced restaurant

10%A meal in Seattle is 10% cheaper than a meal in London.

London£20.00

Seattle£18.70

TaxiStandard daytime start rate

54%A taxi fare in Seattle is 54% cheaper than in London.

London£4.20

Seattle£1.94

CoffeeRegular cappuccino

14%Coffee is 14% more expensive in Seattle than in London.

London£4.05

Seattle£4.63

Exchange rate

1 GBP = 1.34 USD

1 USD = 0.75 GBP

Last checked on Wed 17/12

Distance: 4784 miles

London airports

Gatwick (LGW)How far from city centre: 25 miles

Heathrow (LHR)How far from city centre: 14 miles

Luton International (LTN)How far from city centre: 27 miles

Stansted (STN)How far from city centre: 30 miles

London City (LCY)How far from city centre: 7 miles

Southend (SEN)How far from city centre: 35 miles

Seattle airports

Seattle All Airports (SEA)How far from city centre: 11 miles

Useful information to fly from London to Seattle

Travelling from London to Seattle is easy, with a range of flights to Seattle from London available. You can find both cheap flights from London to Seattle and direct flights from London to Seattle, making it simple to find the perfect itinerary for you. To find the cheapest flights to Seattle from London, try booking your tickets to Seattle from London in advance.

Time difference between London and Seattle

Seattle is 8 hours behind London. Don't forget to check for any Daylight Savings Time differences, as this could affect the actual time difference when you travel.

Best time to fly to Seattle

Seattle, nestled in the heart of the Pacific Northwest, boasts a wonderfully temperate climate, making it an appealing destination year-round. Imagine yourself exploring vibrant Pike Place Market or taking in the iconic Space Needle against a backdrop of clear blue skies. The best time to experience Seattle's charm is during the summer months, from June to August, when temperatures hover around a pleasant 79°F (26.1°C). If you prefer milder weather and don't mind a little drizzle, spring and autumn offer a unique perspective on this captivating city. Even winter has its allure, with cosy cafes and the chance to experience Seattle's festive spirit.

Ready to discover the Emerald City? Find cheap flights to Seattle from London and other amazing deals on holidays in Seattle.

London airports

London has several airports that serve millions of travellers every year. If you're looking for flights to Seattle from London, you'll likely be departing from one of these three major airports:

Airport information

Heathrow Airport (LHR)

Heathrow is the busiest airport in the UK and a major international hub. It is located 14 miles (23 km) west of Central London. Heathrow has four terminals and offers a wide range of amenities, including shops, restaurants, and lounges.

Gatwick Airport (LGW)

Gatwick is the second busiest airport in the UK, located 29 miles (47 km) south of Central London. It has two terminals and offers a variety of shops, restaurants, and lounges.

London City Airport (LCY)

London City Airport is a smaller airport located 6 miles (10 km) east of Central London. It primarily serves domestic and European destinations but also offers some long-haul flights.

Main airlines for this route

Here are the top three airlines offering flights from London to Seattle:

British Airways
Virgin Atlantic
Delta

Seattle airports

Planning your dream trip to Seattle? Let's find the perfect flights to Seattle from London for you! Seattle, a vibrant city in the Pacific Northwest, is primarily served by Seattle-Tacoma International Airport (SEA), a bustling hub known for its efficiency and passenger-friendly facilities.

Airport information

Seattle-Tacoma International Airport (SEA)

Located about 14 miles (23 km) south of downtown Seattle, Seattle-Tacoma International Airport is your gateway to exploring the Emerald City. Whether you're searching for cheap flights to Seattle from London or cheap tickets to Seattle from London, this airport offers a seamless travel experience.

At Seattle-Tacoma International Airport, you'll find a wide array of facilities designed to make your journey as comfortable as possible. Indulge in delicious meals at the various restaurants, browse for souvenirs at the shops, or exchange currency at your convenience.

Getting from the airport to the city centre is a breeze, with several convenient options available:

Link Light Rail: The Link light rail connects the airport directly to downtown Seattle, with a journey time of approximately 40 minutes.
Taxi: Taxis are readily available outside the terminal, offering a comfortable ride to the city centre for around $40-50 (£32-£40).
Car Hire: For those who prefer to explore at their own pace, car hire services are available at the airport. Book your car hire in Seattle with us and enjoy a hassle-free experience.

What to do and see in Seattle

Seattle is a vibrant city with plenty to offer visitors. If you're flying in from London, be sure to book your cheap flights to Seattle from London with Opodo to get the best deals. Once you've arrived and settled in, check out our recommendations for things to do in Seattle.

Here are 3 must-do activities in Seattle:

Space Needle: Visit this iconic tower for breathtaking views of the city. Tickets cost around £25 ($30).
Pike Place Market: Explore this historic market and sample fresh seafood, local produce, and unique crafts.
Museum of Pop Culture (MoPOP): Immerse yourself in music, science fiction, and pop culture at this interactive museum.

Discover our TOP discounts for your flight from London to Seattle

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Frequently asked questions about flights from London to Seattle

Is it possible to purchase a flexible ticket for my flight from London to Seattle?

At Opodo we want to make sure that your travel plans are not affected by any cancelation as well as any possible restrictions United States may apply when travelling from London. Is your flight cancelled? We've got your back! With our flexible ticket guarantee you can decide if you want to book another flight - free of rebooking fee - or get a full refund!

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

The cheapest price for a flight from London to Seattle is 292 £. 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.

Is Seattle expensive to visit compared to London?

If you compare transportation prices, the taxi ride in Seattle costs an average of 1.94 GBP, 54% cheaper than London, with a fare of 4.20 GBP,

While train tickets costs 36% less in Seattle: 2.24 GBP against 3.50 GBP in London.

If you compare the price of a lunch meal, however, you can find it from 18.70 GBP in Seattle, 6% less than the 20.00 GBP in London.

The price of the coffee is around 14% more expensive in Seattle, with an average of 4.63 GBP , while in London the coffee costs 4.05 GBP.

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

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

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

The best time of the year to go to Seattle when flying from London depends on several preference factors like climate, seasonality and, of course, price. When it comes to popularity, July is the top 1º month to fly to Seattle from London in terms of searches from our customer, followed by August and September. 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 London - Seattle.

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

The total flight time between London and Seattle is of around 10:35 hours on average, considering an average distance of 8,089 km, for both direct and indirect flights for the route (which may have 1 or more stops in other cities in between).

How is the weather in Seattle compared to London?

While in London the temperatures can reach an average of 29.01 ºC in summer, with precipitation levels up to 9 mm ,Seattle's temperatures can go up to 31.31 ºC during the hot season, with 9 mm average of rain rate . In winter, however, weather indicators show around -3.71 ºC in Seattle, compared to the -3.09 ºC average degrees reported in London. During the winter period, London can register 6 mm precipitation, while Seattle have an average of 12 mm rain level.

Which airports have flights between London and Seattle?

The main airport route flying between London and Seattle is: Heathrow (LHR) to Seattle All Airports (SEA). This route is covered by the following airline(s):

British Airways.

Air Canada.

Aer Lingus.

Alternatively, you can find London - Seattle flights between Gatwick (LGW) to Seattle All Airports (SEA) with the following airline(s) flying the route: Icelandair.

Which are the airlines with flights from London to Seattle?

Airlines with direct flights departing from London to Seattle are:

Marabu Airlines.
Virgin Atlantic.
British Airways.

Lufthansa, stopping in Frankfurt for 90 minutes minimum.

Virgin Atlantic, with 70 minutes scale in Salt Lake City.
Icelandair, with 95 minutes scale in Reykjavik.

Plan your trip

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