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£387+ Cheap flights to Washington

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/8. Fares are subject to change and may not be available on all flights or dates of travel.
— SEA
1 Jul — 8 Jul1
1 adult

Flights to Washington in 2025

Find the latest flights to Washington in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 26 June 2025.

Return from

£473

One-way from

£387

Popular in

August

Cheapest in

January

Average price

£555

Good round-trip deal

£506 or less

Good one-way deal

£421 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 28/8-31/8
  • 3 total stops
  • 42h 45m total
  • London to Seattle
27/8
  • 27/8
  • 3 total stops
  • 21h 10m total
  • London to Washington
Highest demand for flights based on searches. 15% potential increase in price (£74 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).
Average for return flights in June 2025
Price to beat on a round-trip flight from London to Washington.
Price to beat on a one-way flight from London to Washington.

Find flights to Washington

Browse one-way and return flights deals to Washington on Cheapflights. Flight deals are based on user searches and were last updated on 26 June 2025
Explore Washington

Find flight deals to Washington

Cheapest flights to Washington
Explore the most affordable flight options available to Washington. Find the lowest fares based on data from user searches, with prices last updated on 26 June 2025.

Thu 4/1206:00LHR - SEA
2 stops25h 14mSWISS
Wed 10/1213:18SEA - LHR
2 stops20h 32mSWISS
Deal found 26/6£472
Thu 28/819:30LHR - SEA
1 stop26h 20mScandinavian Airlines
Sun 31/816:00SEA - LHR
2 stops16h 25mScandinavian Airlines
Deal found 25/6£473
Sat 27/910:50LHR - SEA
2 stops19h 26mMultiple Airlines
Sat 4/1007:15SEA - LHR
1 stop18h 20mMultiple Airlines
Deal found 25/6£474
Thu 18/918:40LGW - SEA
2 stops34h 42mSWISS
Thu 25/915:28SEA - LGW
2 stops18h 22mSWISS
Deal found 24/6£475
Sat 25/1021:25LHR - SEA
1 stop28h 15mIcelandair
Mon 3/1114:35SEA - LHR
1 stop20h 55mIcelandair
Deal found 24/6£476
Sat 6/906:30LHR - SEA
1 stop13h 25mLufthansa
Sat 4/1010:00SEA - LHR
2 stops15h 35mLufthansa
Deal found 25/6£478
Mon 18/809:30LHR - SEA
1 stop19h 11mAir Canada
Tue 2/907:15SEA - LHR
1 stop18h 20mAir Canada
Deal found 23/6£480
Tue 26/810:00LGW - SEA
1 stop20h 05mMultiple Airlines
Wed 27/819:00SEA - LGW
1 stop11h 40mMultiple Airlines
Deal found 25/6£481
Mon 18/806:30LHR - SEA
1 stop17h 25mKLM
Tue 2/920:25SEA - LHR
Nonstop9h 50mKLM
Deal found 25/6£481
Wed 20/816:30LHR - SEA
Nonstop9h 50mBritish Airways
Tue 11/1113:35SEA - LHR
Nonstop9h 25mBritish Airways
Deal found 23/6£482
Mon 8/915:40LGW - SEA
1 stop13h 00mIcelandair
Fri 26/919:00SEA - LGW
1 stop11h 40mIcelandair
Deal found 24/6£483
Wed 10/913:25LHR - SEA
Nonstop10h 05mVirgin Atlantic
Mon 15/917:35SEA - LHR
Nonstop9h 45mVirgin Atlantic
Deal found 25/6£483

Cheapflights Fare Finder

Locate flights to Washington that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 26 June 2025.
Use the filters below to find and compare flights to Washington that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 4/12

06:00-23:14

2 stops25h 14m

Seattle/Tacoma Intl

Wed 10/12

13:18-17:50

2 stops20h 32m

£472

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 28/8

19:30-13:50

1 stop26h 20m

Seattle/Tacoma Intl

Sun 31/8

16:00-16:25

2 stops16h 25m

£473

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sat 27/9

10:50-22:16

2 stops19h 26m

Seattle/Tacoma Intl

Sat 4/10

07:15-09:35

1 stop18h 20m

£474

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Thu 18/9

18:40-21:22

2 stops34h 42m

Seattle/Tacoma Intl

Thu 25/9

15:28-17:50

2 stops18h 22m

£475

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sat 25/10

21:25-17:40

1 stop28h 15m

Seattle/Tacoma Intl

Mon 3/11

14:35-19:30

1 stop20h 55m

£476

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sat 6/9

06:30-11:55

1 stop13h 25m

Seattle/Tacoma Intl

Sat 4/10

10:00-09:35

2 stops15h 35m

£478

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 18/8

09:30-20:41

1 stop19h 11m

Seattle/Tacoma Intl

Tue 2/9

07:15-09:35

1 stop18h 20m

£480

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 26/8

10:00-22:05

1 stop20h 05m

Seattle/Tacoma Intl

Wed 27/8

19:00-14:40

1 stop11h 40m

£481

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 18/8

06:30-15:55

1 stop17h 25m

Seattle/Tacoma Intl

Tue 2/9

20:25-14:15

Nonstop9h 50m

£481

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 20/8

16:30-18:20

Nonstop9h 50m

Seattle/Tacoma Intl

Tue 11/11

13:35-07:00

Nonstop9h 25m

£482

Flights are sorted by cheapest return flights first.

Deals found on 24/6

Showing 1-10 of 60 results
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Best time to book a flight to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight to Washington

How long is the flight to Washington?

On average, a flight from London to Washington takes 15 hours 44 minutes. Flights to Washington from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to Washington?

Use this chart to determine the cheapest time to fly return from London to Washington. Price data was last updated on 16 December 2024.

Users looking for the lowest fares to Washington should consider flying on Wednesday mornings, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday afternoons, when prices are usually at their highest.

Weekly flight availability to Washington

The most flights from London to Washington are scheduled on a Wednesday (22 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (1 on average).

What are the cheapest airlines that fly to Washington?

The cheapest airlines flying from London to Washington are Aer Lingus, Icelandair and Air France.

Rainfall in Washington by month

Plan your trip to Washington by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Washington when rainfall is around 18.0 mm.

Temperature in Washington by month

Plan your trip to Washington by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

What are the most popular places to fly to in Washington?

Destination popularity is based on the amount of flight searches to Washington in the last few years. This data was updated on 26 June 2025.
The most popular places in Washington to fly to are Seattle and Spokane.

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated 26 June 2025.
Read through reviews of airlines serving the United States, such as Delta, KLM, andFinnair. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very Good

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

FAQs about flying to Washington

Washington climate

Washington has two main climates: west and east of the Cascades. The west is typically mild and wet, the east cool and dry. Seattle temperatures generally range from the very low single digits in January to about 20 degrees (Celsius) in July; Spokane from about minus six in January to about 20 in July.Most rain falls October through March. The western side of the Olympic Peninsula receives up to 406cm (160 inches) of rain annually, and the western slopes of the Cascades over 500cm (200 inches) of snow. Eastern Washington has only about 15cm (six inches) of precipitation, with more closer to the Rocky Mountains.

Getting around Washington

With several regional airports, flying within Washington is easy and discount fares are available. There is train service north and south of Seattle and bus service to Spokane and beyond. Washington has the most extensive ferry service in the country, and it includes transport to the San Juan Islands, Bainbridge Island, Whidbey Island, Vashon Island, and Kitsap Peninsula. A car or RV is a great way to see the state and the only way to get to some of the more remote locations. Make sure to fill the gas tank first — Washington is a large state, and gas stations are few and far between in some areas.

Seattle is fun to explore on foot and is well served by the Metro system. The Downtown Ride Free Area has free bus service from 6am to 7pm. To travel across the sound, choose from ferries, speedboats, water taxis, and jet catamarans. Seattle is a difficult city for driving, with bad traffic congestion, one-way streets, and scarce and expensive parking.

Hiking is the best mode of transport in Olympic National Park. A great state for hiking, Washington’s popular trails include the Pacific Crest Trail, Hoh River Trail, and Wonderland Trail.

Airports

The main airport for flights to Washington State is Seattle-Tacoma International Airport (SEA)

What is good to know if travelling to Washington?

  • The small town of Starbuck in Columbia County is not the home of Starbucks, the global coffee company. That’s Pike Place, a downtown Seattle market. Other “liquid” attractions are microbreweries Red Hook Brewery in Woodinville (there are tours) and Yakima Brewing and Malting Co.
  • Leavenworth is a Bavarian village in the foothills of the Cascade Mountains. In the 1960s, the town decided to go Bavarian to stave off economic meltdown. Stores were remodelled and festivals launched including the Autumn Leaf Festival, the Christmas Lighting and the Maifest. Enjoy the Germanic fare such as wiener schnitzel and sauerbraten or pick up a cuckoo clock.
  • Tatoosh Island, about a half mile off Cape Flattery (the most north-westerly point in the continental US) on the Olympic Peninsula is part of the Makah Indian Reservation. Nobody lives on the island, but has a very nice lighthouse, which looks over the entrance to the Strait of Juan de Fuca and lots and lots of birds.
  • Olympic National Park has glacier-capped mountains, almost 96km (60 miles) of wild Pacific coast and old-growth rain forest. The star of the park is Mount Olympus which stands at 2,427 metres (7,962 feet). There are three national parks in Washington State: Olympic National Park, Mount Rainier National ParkNorth Cascades National Park.
  • The four main San Juan Islands – served by Washington State Ferries – are Lopez, Orcas, San Juan and Shaw, although hundreds of islands and islets make up the archipelago. San Juan boasts the Whale Museum and there are the ruins of the British and American forts in San Juan Island National Historic Park.
  • Can I find cheaper flights to Washington if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Washington on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Washington?

    Based on reviews from Cheapflights users, Aer Lingus is rated the highest out of the airlines that fly to Washington.

  • What is the cheapest airport to fly to in Washington?

    Seattle/Tacoma Intl is currently the cheapest airport to fly to in Washington. One-way flights to Seattle/Tacoma Intl typically cost £46, while return flights cost around £51.

  • How much is a return flight to Washington?

    A return flight to Washington will typically cost around £545, however they can be found for as little as £69.

  • Where does the fastest flight to Washington depart from?

    For those looking to save time traveling to Washington, London offers the quickest one-way flight (9 hours 45 minutes).

  • Does Seattle/Tacoma Intl have car hire?

    Yes. Those touching down at Seattle/Tacoma Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Seattle/Tacoma Intl?

    Yes. Seattle/Tacoma Intl has hotels nearby for those requiring accommodations. Seatac Inn is the closest property to Seattle/Tacoma Intl (0.0 mi away from Seattle/Tacoma Intl).

See more FAQs

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