£357 Cheap Flights to Washington

View £357 flight on Sat, 19 Sept 2026Opens in a new window

Popular airlines to Washington

  • Alaska Airlines

  • Delta

  • American Airlines

  • United

  • Southwest Airlines

  • Frontier Airlines

  • JetBlue Airways

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Cheap round-trip flights to Washington

Prices were available within the past 7 days and start at £357 for one-way flights and £404 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Fri, 5 Mar - Fri, 12 Mar
LGW
London
SEA
Seattle
£404 Return, found 1 day ago
£404
Return
found 1 day ago
Select Icelandair flight, departing Fri, 5 Mar from London to Seattle, returning Fri, 12 Mar, priced at £404 found 1 day ago
Icelandair
Thu, 22 Oct - Sat, 31 Oct
LHR
London
SEA
Seattle
£408 Return, found 3 days ago
£408
Return
found 3 days ago
Select Icelandair flight, departing Thu, 22 Oct from London to Seattle, returning Sat, 31 Oct, priced at £408 found 3 days ago
Aer Lingus
Wed, 11 Nov - Mon, 16 Nov
LHR
London
SEA
Seattle
£412 Return, found 2 days ago
£412
Return
found 2 days ago
Select Aer Lingus flight, departing Wed, 11 Nov from London to Seattle, returning Mon, 16 Nov, priced at £412 found 2 days ago
Delta
Sat, 17 Oct - Fri, 30 Oct
LHR
London
SEA
Seattle
£441 Return, found 3 days ago
£441
Return
found 3 days ago
Select Delta flight, departing Sat, 17 Oct from London to Seattle, returning Fri, 30 Oct, priced at £441 found 3 days ago
American Airlines
Fri, 18 Sept - Mon, 21 Sept
LHR
London
SEA
Seattle
£457 Return, found 13 hours ago
£457
Return
found 13 hours ago
Select American Airlines flight, departing Fri, 18 Sept from London to Seattle, returning Mon, 21 Sept, priced at £457 found 13 hours ago
British Airways
Wed, 4 Nov - Wed, 11 Nov
LHR
London
SEA
Seattle
£459 Return, found 16 hours ago
£459
Return
found 16 hours ago
Select British Airways flight, departing Wed, 4 Nov from London to Seattle, returning Wed, 11 Nov, priced at £459 found 16 hours ago
KLM
Fri, 23 Oct - Fri, 6 Nov
LGW
London
SEA
Seattle
£461 Return, found 2 days ago
£461
Return
found 2 days ago
Select KLM flight, departing Fri, 23 Oct from London to Seattle, returning Fri, 6 Nov, priced at £461 found 2 days ago
Swiss International Air Lines
Thu, 15 Oct - Wed, 21 Oct
LGW
London
SEA
Seattle
£470 Return, found 6 days ago
£470
Return
found 6 days ago
Select Swiss International Air Lines flight, departing Thu, 15 Oct from London to Seattle, returning Wed, 21 Oct, priced at £470 found 6 days ago
Finnair
Fri, 25 Sept - Wed, 14 Oct
LHR
London
SEA
Seattle
£474 Return, found 8 hours ago
£474
Return
found 8 hours ago
Select Finnair flight, departing Fri, 25 Sept from London to Seattle, returning Wed, 14 Oct, priced at £474 found 8 hours ago
Lufthansa
Tue, 1 Sept - Thu, 10 Sept
LHR
London
SEA
Seattle
£474 Return, found 1 day ago
£474
Return
found 1 day ago
Select Lufthansa flight, departing Tue, 1 Sept from London to Seattle, returning Thu, 10 Sept, priced at £474 found 1 day ago

Airports in Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Flights from £386
SEA
Seattle - Tacoma Intl.
Cheapest
Flights from £386

Trending flights to Washington

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Fri, 5 Mar - Fri, 12 Mar
LGW
London
SEA
Seattle
£404 Return, found 1 day ago
£404
Return
found 1 day ago
Select Icelandair flight, departing Fri, 5 Mar from London to Seattle, returning Fri, 12 Mar, priced at £404 found 1 day ago

Frequently asked questions

How do I find cheap flights to Washington that have flexible change policies?
At Expedia, we've been channeling our inner acrobat to give you the most flexible fares available. Simply mark the "No change fee" box right under the "Flexible change policies" filter to find the best flights to Washington.
Which airlines fly to Washington?
Book your seat with any of these airlines and buckle up for new adventures in Washington:

  • Alaska Airlines - 9,739 flights to or near Washington each month, including 8,781 flights to Seattle - Tacoma Intl. Airport (SEA) and 676 flights to Spokane Intl. Airport (GEG) per month.
  • American Airlines - 8,039 flights to or near Washington each month, including 7,284 flights to Ronald Reagan Washington National Airport (DCA) and 663 flights to Seattle - Tacoma Intl. Airport (SEA) per month.
  • Delta Air Lines - 6,417 flights to or near Washington each month, including 4,186 flights to Seattle - Tacoma Intl. Airport (SEA) and 1,516 flights to Ronald Reagan Washington National Airport (DCA) per month.

How can I find cheap tickets to Washington?
Start searching as early as possible, fly in or out of nearby airports, avoid peak travel periods — you're not short of ways! One more is to make the most of Expedia's "flexible dates" feature. Search for your Washington flight, then check out the cheapest prices for nearby dates. In the last seven days, the lowest price for a flight to Washington was £404.
How much is a flight to Washington?
You could have purchased a return flight to Washington from anywhere between £404 and £474 in the last seven days. For one-way journeys from London (LGW), the lowest amount paid during this time was £357.
What are the most popular airports to fly into in Washington?
Your budget, departure point and your chosen airline will help decide which of these major Washington airports you'll touch down at:

  • Seattle - Tacoma Intl. Airport (SEA) - 15,456 flights per month.
  • Ronald Reagan Washington National Airport (DCA) - 11,555 flights per month.
  • Spokane Intl. Airport (GEG) - 1,742 flights per month.

When is the cheapest time to fly to Washington?
If you're not fixed on what date you jet off to Washington, fly out early in the week. The cheapest day to take off is usually Tuesday, followed closely by Monday. Saturday is typically the priciest day, with many holiday makers preferring to fly on the weekend.
How much is a plane ticket to Washington?
In the last seven days, plane tickets to Washington varied from £404 to £474.
What is the best time to go to Washington?
Summer begins June 20 in the Northern Hemisphere, and these warmer months are a lovely time to travel to the exciting Washington city of Seattle. Average temperatures range between 13ºC and 24ºC across the season. The biggest crowds can be found here in March, May and June.
What months are the cheapest to book a flight to Washington?
The top month to purchase budget fares to Washington is February. It's worth noting that in the USA, the most expensive time to purchase a ticket is the festive month of December.

Book with confidence

Top tips for booking flights to Washington from UK

Get ready to fly to Washington

Prepare your luggage and book your flights to Washington with Expedia. We offer a seamless flight booking experience, with a wide range of Washington plane tickets to choose from. If you need help finding some of the best deals for cheap flights to Washington in 2026, we are always available to assist you. Book your flights to Washington today and let the adventure begin!

Find the best tickets to Washington

To find some of the best tickets to Washington in 2026, use Expedia's powerful search engine to compare dates and the different departure and arrival airports for your trip. Whether you're after direct flights to Washington or last-minute flights to Washington, you can filter and sort your search results, making it easy to find the ideal flight to Washington.

Airlines fly to Washington

There are 20 different airlines that fly to Washington including some of the most trusted names in the business. To book flights to Washington with your favourite airline, take a look at Expedia's flight listings and try out different dates to find some of the best Washington plane tickets.

Find the cheapest flights to Washington

By booking early you may find some of the best deals for Washington flights from the UK, including Washington direct flights. You can usually find affordable and cheap flights to Washington, whether one-way from £357 or round-trip from £404, with Expedia if you book your trip far enough in advance.

Find the best airports for cheap flights to Washington

Try searching for different Washington airports with Expedia to find some of the cheapest flights to Washington. Flights from London (LGW) to Seattle (SEA) usually have the lowest price from £357.

Why book your flights to Washington with Expedia

Expedia offers great deals on Washington air fares from £357 to cater to every budget. Not only is Expedia one of the top platforms to book flights to Washington from the UK, it is also your one-stop shop for booking hotels, car rentals, and more.

 

*Prices and availability are subject to change. Additional terms apply.

Top tips for booking flights to Washington from UK

Travel information

Washington Flights Information

Airlines serving
American Airlines, British Airways, Aer Lingus, JetBlue Airways, Icelandair, Alaska Airlines, Delta, KLM, Swiss International Air Lines, Finnair, Lufthansa
Roundtrip price
from £404
Washington Flights Information

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