£342+ 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 22/10. Fares are subject to change and may not be available on all flights or dates of travel.
— SEA
6 Nov — 13 Nov1
1 adult
1 adult, Economy

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 7 October 2025.

Return from

£440

One-way from

£306

Popular in

July

Cheapest in

January

Average price

£532

Good round-trip deal

£495 or less

Good one-way deal

£564 or less
Icelandair
  • Icelandair
  • 14/12-6/1
  • 2 total stops
  • 25h 25m total
  • London to Seattle
14/12
  • 14/12
  • 2 total stops
  • 37h 40m total
  • London to Washington
Highest demand for flights based on searches. 12% potential increase in price (£59 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Average for return flights in October 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 7 October 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 7 October 2025.

Sun 14/1211:55LGW - SEA
1 stop13h 05mIcelandair
Tue 6/114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 7/10£440
Sun 14/1212:15LHR - SEA
1 stop12h 45mIcelandair
Tue 6/114:35SEA - LHR
1 stop12h 15mIcelandair
Deal found 7/10£443
Fri 21/1106:30STN - SEA
2 stops18h 30mMultiple Airlines
Fri 28/1114:35SEA - STN
2 stops22h 45mMultiple Airlines
Deal found 7/10£444
Fri 12/1212:15LHR - SEA
1 stop12h 45mIcelandair
Mon 9/315:35SEA - LHR
1 stop12h 15mIcelandair
Deal found 6/10£444
Thu 20/1109:00LTN - SEA
2 stops16h 00mMultiple Airlines
Thu 27/1114:35SEA - LTN
2 stops17h 25mMultiple Airlines
Deal found 6/10£444
Wed 5/1112:15LHR - SEA
1 stop12h 45mIcelandair
Fri 3/415:45SEA - LHR
1 stop12h 10mIcelandair
Deal found 6/10£444
Sun 14/1212:15LHR - SEA
1 stop12h 45mIcelandair
Tue 30/1214:35SEA - LHR
1 stop12h 15mIcelandair
Deal found 6/10£447
Thu 20/1108:50LGW - SEA
2 stops16h 10mMultiple Airlines
Thu 27/1114:35SEA - LGW
2 stops19h 55mMultiple Airlines
Deal found 6/10£447
Wed 17/1212:15LHR - SEA
1 stop12h 45mIcelandair
Tue 30/1214:35SEA - LHR
1 stop12h 15mIcelandair
Deal found 6/10£447
Wed 29/1011:55LGW - SEA
1 stop13h 05mIcelandair
Tue 4/1114:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 6/10£452
Fri 12/1212:15LHR - SEA
1 stop12h 45mIcelandair
Fri 13/315:35SEA - LHR
1 stop12h 15mIcelandair
Deal found 6/10£453
Wed 17/1212:15LHR - SEA
1 stop12h 45mIcelandair
Mon 29/1214:35SEA - LHR
1 stop12h 15mIcelandair
Deal found 5/10£455

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 7 October 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

LGW - SEA

LGWSEA

London Gatwick

Mon 15/12

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Tue 6/1

14:35-10:55

1 stop12h 20m

£440

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sun 14/12

12:15-17:00

1 stop12h 45m

Seattle/Tacoma Intl

Tue 6/1

14:35-10:50

1 stop12h 15m

£443

LondonSeattle

STN - SEA

STNSEA

London Stansted

Fri 21/11

06:30-17:00

2 stops18h 30m

Seattle/Tacoma Intl

Fri 28/11

14:35-21:20

2 stops22h 45m

£444

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Thu 20/11

09:00-17:00

2 stops16h 00m

Seattle/Tacoma Intl

Thu 27/11

14:35-16:00

2 stops17h 25m

£444

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Wed 29/10

11:55-18:00

1 stop13h 05m

Seattle/Tacoma Intl

Fri 7/11

14:35-10:55

1 stop12h 20m

£452

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Wed 29/10

11:55-18:00

1 stop13h 05m

Seattle/Tacoma Intl

Tue 4/11

14:35-10:55

1 stop12h 20m

£452

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Mon 15/12

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Mon 5/1

14:35-10:55

1 stop12h 20m

£468

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Mon 15/12

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Wed 31/12

14:35-10:55

1 stop12h 20m

£468

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 24/11

08:30-18:20

1 stop17h 50m

Seattle/Tacoma Intl

Sun 30/11

20:05-16:35

1 stop12h 30m

£481

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 19/11

08:30-18:20

1 stop17h 50m

Seattle/Tacoma Intl

Wed 26/11

20:05-17:50

1 stop13h 45m

£483

Flights are sorted by cheapest return flights first.

Deals found on 5/10

Showing 1-10 of 32 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 16 hours 52 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 Friday 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 (21 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (10 on average).

What are the cheapest airlines that fly to Washington?

The cheapest airlines flying from London to Washington are Air China and Turkish Airlines.

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 7 October 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 7 October 2025.
Read through reviews of airlines serving the United States, such as KLM, Air France, andVirgin Atlantic. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.1

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Entertainment

7.1

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Entertainment

7.1

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Entertainment

7.1

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Entertainment

7.1

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Entertainment

7.1

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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, Icelandair 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 £64, while return flights cost around £119.

  • How much is a return flight to Washington?

    A return flight to Washington will typically cost around £2,272, however they can be found for as little as £183.

  • 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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