Question 1

How long does a flight from London to Seattle take?

Accepted Answer

Direct flights take on average 9h 45m to travel the 12,406 km between London and Seattle. Visit our flight page for the latest deals!>/a>

Question 2

How many flights are there between London and Seattle per day?

Accepted Answer

Each day, there are 4 direct flights that take off from London and land in Seattle, with an average flight time of 10h 03m. The most common departure time is 16:00 and most flights take off in the afternoon. Each week, there are 28 flights and there are the same number of flights each day (4). Visit our flight page for the latest deals!>/a>

Question 3

What is the cheapest flight from London to Seattle?

Accepted Answer

In the last 3 days, the lowest price for a flight from London to Seattle was €297 for a one-way ticket and €543 for a return. <a href='/flight-routes/London-LON/Seattle-Tacoma-Intl-SEA'>Visit our flight page for the latest deals!>/a>

Question 4

Which airlines fly most frequently between London and Seattle?

Accepted Answer

British Airways connects London to Seattle with 14 flights per week. Delta also offers 7 flights per week, while Virgin Atlantic follows with 7 flights per week. Visit our flight page for the latest deals!>/a>

Question 5

What’s the earliest departure time from London to Seattle?

Accepted Answer

Early birds can take the earliest flight from London at 09:25 and will be landing in Seattle at 11:10.

Question 6

What’s the latest departure time from London to Seattle?

Accepted Answer

If you prefer to fly at night, the latest flight from London to Seattle jets off at 18:30 and lands at 20:50.

Question 7

Which airlines offer Wi-Fi service onboard planes from London to Seattle?

Accepted Answer

KLM, Air France, Virgin Atlantic, and Delta offer inflight Wi-Fi service on the London to Seattle flight route.

Question 8

Which aircraft models fly most regularly from London to Seattle?

Accepted Answer

The Airbus A330-900neo is the aircraft model that flies most regularly on the London to Seattle flight route.

Question 9

Which airline alliances offer flights from London to Seattle?

Accepted Answer

oneworld, and SkyTeam are the airline alliances operating flights between London and Seattle, with SkyTeam being the most commonly used for this route.

Question 10

On which days can I fly direct from London to Seattle?

Accepted Answer

There are direct flights from London to Seattle on a daily basis.

Question 11

Are there any passenger lounges at Stansted Airport?

Accepted Answer

Those flying from London’s Stansted Airport (STN) can relax in style at the Escape Lounge. You can find this lounge in the main departure area once you have passed through security and the duty-free area. You can pre-book your entry into the lounge for £25 per person, however infants younger than 2 years can enter free of charge. The lounge is open from 4:00 – 22:30 daily.

Question 12

How do I travel from Seattle Airport into the city?

Accepted Answer

If you would like to use public transport to travel into the city from Seattle Airport, you can catch the Red Line of the Link Light Rail train system from the airport station to Pioneer Square Station in downtown Seattle. The trip takes about 40min. There are also a number of bus services that can take you throughout the greater Seattle area, including the 574 line to Tacoma, taking approximately 30min.

Question 13

How do I get to Gatwick Airport?

Accepted Answer

The fastest way to get to London’s Gatwick Airport (LGW) using public transport from Central London is to take the Gatwick Express train. You can catch this train from Victoria Station every day from 5:00 – midnight. This train runs every 15min, stopping at Gatwick Airport’s South Terminal and taking 30min. Alternatively, the Thameslink also runs to Gatwick Airport in 30min from London Bridge Station every 20min.

Question 14

What restaurants are there at Heathrow Airport?

Accepted Answer

If you have time before you fly from Heathrow Airport (LHR), you can enjoy a wide range of restaurants and dining options throughout the airport, depending on which terminal you are flying from. If you’re looking for a sit-down meal, you can find the Gorgeous Kitchen in Terminal 2, The Curator or The Cavier House & Prunier in Terminal 3, The Prince of Wales or Comptoir Libanais in Terminal 4 or the Crown Rivers Bar & Food at Terminal 5.

Question 15

What is the cheapest month to fly from London to Seattle?

Accepted Answer

The cheapest month for flights from London to Seattle is January, where tickets cost €539 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is €864 and €853 respectively.

Question 16

How does KAYAK find such low prices on flights from London to Seattle?

Accepted Answer

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Seattle. <a href='/flight-routes/London-LON/Seattle-Tacoma-Intl-SEA'>Visit our flight page for the latest deals!>/a>

Question 17

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Seattle?

Accepted Answer

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from London is likely to change within 7 days, so travelers know whether to wait or book now. <a href='/flight-routes/London-LON/Seattle-Tacoma-Intl-SEA'>Visit our flight page for the latest deals!>/a>

Question 18

What is the Hacker Fare option on flights from London to Seattle?

Accepted Answer

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Seattle with an airline and back to London with another airline. <a href='/flight-routes/London-LON/Seattle-Tacoma-Intl-SEA'>Visit our flight page for the latest deals!>/a>

Question 19

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Seattle?

Accepted Answer

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. <a href='/flight-routes/London-LON/Seattle-Tacoma-Intl-SEA'>Visit our flight page for the latest deals!>/a>

Question 20

Which cabin class options are there for flights between London and Seattle?

Accepted Answer

There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 21

Which airlines provide the cheapest flights from London to Seattle?

Accepted Answer

In the past 3 days, the cheapest return tickets from London to Seattle were found on Scandinavian Airlines (€517) and Delta (€538).

Question 22

What is the cheapest London to Seattle flight route?

Accepted Answer

Our data shows that the cheapest route for a return flight from London to Seattle cost €622 and was between London Heathrow Airport (LHR) and Seattle (SEA). On average, the best prices are found if you fly this route. The average price for a return flight for this route is €622.

Question 23

How far in advance should I book a flight from London to Seattle?

Accepted Answer

To get a below average price on the flight from London to Seattle, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Low season	January
High season	July

LON - SEA

€257 Find Cheap Flights from London to Seattle

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

Cheap Flights from London to Seattle (LON-SEA)

Recent return flight deals from London to Seattle

Recent one-way flight deals from London to Seattle

Recent last minute flight deals from London to Seattle

Recent direct flight deals from London to Seattle

KAYAK's insights & trends for London to Seattle flights

Get data-powered insights and trends into flights from London to Seattle to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest London to Seattle flight route?

Our data shows that the cheapest route for a return flight from London to Seattle cost €622 and was between London Heathrow Airport (LHR) and Seattle (SEA). On average, the best prices are found if you fly this route. The average price for a return flight for this route is €622.

What is the cheapest month to fly from London to Seattle?

The cheapest month for flights from London to Seattle is January, where tickets cost €539 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is €864 and €853 respectively.

How far in advance should I book a flight from London to Seattle?

To get a below average price on the flight from London to Seattle, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Which airlines provide the cheapest flights from London to Seattle?

In the past 3 days, the cheapest return tickets from London to Seattle were found on Scandinavian Airlines (€517) and Delta (€538).

Which airlines fly most frequently between London and Seattle?

British Airways connects London to Seattle with 14 flights per week. Delta also offers 7 flights per week, while Virgin Atlantic follows with 7 flights per week.

Which cabin class options are there for flights between London and Seattle?

There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How many flights are there between London and Seattle per day?

Each day, there are 4 direct flights that take off from London and land in Seattle, with an average flight time of 10h 03m. The most common departure time is 16:00 and most flights take off in the afternoon. Each week, there are 28 flights and there are the same number of flights each day (4).

How long does a flight from London to Seattle take?

Direct flights take on average 9h 45m to travel the 12,406 km between London and Seattle.

What’s the earliest departure time from London to Seattle?

Early birds can take the earliest flight from London at 09:25 and will be landing in Seattle at 11:10.

What’s the latest departure time from London to Seattle?

If you prefer to fly at night, the latest flight from London to Seattle jets off at 18:30 and lands at 20:50.

Good to know

When to book flights from London to Seattle

FAQs for booking flights from London to Seattle

Are there any passenger lounges at Stansted Airport?

How do I travel from Seattle Airport into the city?

How do I get to Gatwick Airport?

What restaurants are there at Heathrow Airport?

What is the cheapest flight from London to Seattle?

In the last 3 days, the lowest price for a flight from London to Seattle was €297 for a one-way ticket and €543 for a return.

Which airlines offer Wi-Fi service onboard planes from London to Seattle?

KLM, Air France, Virgin Atlantic, and Delta offer inflight Wi-Fi service on the London to Seattle flight route.

Which aircraft models fly most regularly from London to Seattle?

The Airbus A330-900neo is the aircraft model that flies most regularly on the London to Seattle flight route.

Which airline alliances offer flights from London to Seattle?

oneworld, and SkyTeam are the airline alliances operating flights between London and Seattle, with SkyTeam being the most commonly used for this route.

On which days can I fly direct from London to Seattle?

There are direct flights from London to Seattle on a daily basis.

How does KAYAK find such low prices on flights from London to Seattle?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Seattle.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Seattle?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from London is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from London to Seattle?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Seattle with an airline and back to London with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Seattle?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London to Seattle

Prefer to fly direct from London to Seattle/Tacoma Intl?

Everything you need to know for your flight from London to Seattle

Information on your arrival and departure airports

Cabin class types available on flights from London to Seattle

Complete your trip to Seattle with a hotel stay or car hire

Flights to other popular destinations

Flights from domestic origins to Seattle

Choose which airport to fly into in Seattle