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£417+ 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 23/8. Fares are subject to change and may not be available on all flights or dates of travel.
— SEA
19 May — 26 May1
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 14 May 2025.

Return from

£472

One-way from

£418

Popular in

August

Cheapest in

January

Average price

£541

Good round-trip deal

£546 or less

Good one-way deal

£671 or less
Virgin Atlantic
  • Virgin Atlantic
  • 22/5-4/6
  • 1 total stop
  • 22h 45m total
  • London to Seattle
WestJet
  • WestJet
  • 1/6
  • 2 total stops
  • 41h 43m total
  • London to Washington
Highest demand for flights based on searches. 16% potential increase in price (£84 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Average for return flights in May 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 14 May 2025
Explore Washington

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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 14 May 2025.

Thu 22/509:50LHR - SEA
Nonstop9h 45mBritish Airways
Mon 2/613:30SEA - LHR
Nonstop9h 20mBritish Airways
Deal found 14/5£472
Mon 15/912:15LHR - SEA
1 stop16h 27mLufthansa
Sat 18/1014:55SEA - LHR
1 stop14h 25mLufthansa
Deal found 13/5£473
Thu 18/908:45LCY - SEA
2 stops19h 57mMultiple Airlines
Thu 16/1013:09SEA - LCY
2 stops19h 16mMultiple Airlines
Deal found 13/5£474
Thu 28/808:30LHR - SEA
2 stops18h 06mAir Canada
Tue 9/910:00SEA - LHR
2 stops15h 35mAir Canada
Deal found 13/5£474
Tue 26/809:05LCY - SEA
1 stop16h 45mBritish Airways
Tue 16/919:35SEA - LCY
1 stop17h 15mBritish Airways
Deal found 14/5£475
Thu 22/517:25LHR - SEA
Nonstop10h 20mVirgin Atlantic
Mon 2/617:35SEA - LHR
Nonstop9h 45mVirgin Atlantic
Deal found 13/5£476
Fri 20/615:40LGW - SEA
1 stop13h 00mIcelandair
Sun 29/623:30SEA - LGW
1 stop28h 15mIcelandair
Deal found 14/5£477
Tue 12/806:30LHR - SEA
2 stops15h 46mUnited Airlines
Thu 11/909:05SEA - LHR
2 stops16h 35mUnited Airlines
Deal found 14/5£477
Fri 6/611:10LHR - SEA
2 stops19h 45mAmerican Airlines
Sun 15/617:40SEA - LHR
1 stop13h 30mAmerican Airlines
Deal found 13/5£477
Sat 31/515:05LGW - SEA
2 stops58h 23mAmerican Airlines
Sun 15/623:55SEA - LGW
2 stops48h 15mAmerican Airlines
Deal found 13/5£478
Thu 22/506:30LHR - SEA
1 stop13h 55mMultiple Airlines
Wed 4/608:00SEA - LHR
1 stop14h 55mMultiple Airlines
Deal found 14/5£478
Fri 5/909:20LCY - SEA
1 stop14h 45mVirgin Atlantic
Mon 8/922:00SEA - LCY
2 stops25h 15mVirgin Atlantic
Deal found 14/5£479

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 14 May 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 5/6

06:15-11:15

1 stop13h 00m

Seattle/Tacoma Intl

Mon 9/6

17:35-11:20

Nonstop9h 45m

£472

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 15/9

12:15-20:42

1 stop16h 27m

Seattle/Tacoma Intl

Sat 18/10

14:55-13:20

1 stop14h 25m

£473

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 28/8

08:30-18:36

2 stops18h 06m

Seattle/Tacoma Intl

Tue 9/9

10:00-09:35

2 stops15h 35m

£474

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 10/6

13:25-17:50

1 stop12h 25m

Seattle/Tacoma Intl

Tue 17/6

07:50-06:25

1 stop14h 35m

£475

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Fri 20/6

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Sun 29/6

23:30-11:45

1 stop28h 15m

£477

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 12/8

06:30-14:16

2 stops15h 46m

Seattle/Tacoma Intl

Thu 11/9

09:05-09:40

2 stops16h 35m

£477

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 6/6

11:10-22:55

2 stops19h 45m

Seattle/Tacoma Intl

Sun 15/6

17:40-15:10

1 stop13h 30m

£477

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 31/5

15:05-17:28

2 stops58h 23m

Seattle/Tacoma Intl

Sun 15/6

23:55-08:10

2 stops48h 15m

£478

LondonSeattle

LCY - SEA

LCYSEA

London City

Fri 6/6

17:50-14:50

1 stop29h 00m

Seattle/Tacoma Intl

Sat 14/6

16:20-18:45

1 stop18h 25m

£482

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 16/9

06:30-16:05

1 stop17h 35m

Seattle/Tacoma Intl

Thu 16/10

17:35-11:20

Nonstop9h 45m

£482

Flights are sorted by cheapest return flights first.

Deals found on 14/5

Showing 1-10 of 60 results
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6

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 17 hours 24 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 Monday (22 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (21 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 14 May 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 14 May 2025.
Get a feel of what it's like to fly with Delta, KLM and Finnair to Washington by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

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

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

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!

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

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!

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

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!

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

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!

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

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 £41, while return flights cost around £52.

  • 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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