United Kingdom

$253+ Cheap flights from Washington to the United Kingdom

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 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LHR
Jun 17 — Jun 241
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Cheap flight deals from Washington to United Kingdom

Keep the following information in mind while searching for Washington to United Kingdom flight deals. Data was last updated June 12, 2025.

Round-trip from

$613
(Cheapflightsfares)

One-way from

$253
(Trip.com)

Popular in

June

Cheapest in

January

Average price

$1,028

Good round-trip deal

$665 or less

Good one-way deal

$445 or less
From Washington to United Kingdom
One-way flight from Washington to United Kingdom
Highest demand for flights based on searches. 15% potential increase in price ($147 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
Average for round-trip flights in June 2025
Price to beat on a round-trip flight from Washington to United Kingdom.
Price to beat on a one-way flight from Washington to United Kingdom.

Find flight deals from Washington to United Kingdom

Cheapest flights from Washington to United Kingdom
Explore the most affordable flight options available from Washington to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/204:00 pmSEA - EDI
1 stop13h 05mScandinavian Airlines
Sat 9/67:55 pmEDI - SEA
2 stops25h 55mScandinavian Airlines
Deal found 6/11$613
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/227:35 pmSEA - EDI
1 stop19h 25mMultiple Airlines
Tue 8/57:40 amEDI - SEA
1 stop18h 10mMultiple Airlines
Deal found 6/10$618
This Lucky2Go deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lucky2Go is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/47:35 pmSEA - EDI
1 stop16h 15mAer Lingus
Wed 8/2011:55 amEDI - SEA
1 stop13h 55mAer Lingus
Deal found 6/10$633
This Mytrip deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/47:20 amSEA - EDI
1 stop17h 45mAir Canada
Wed 8/209:00 amEDI - SEA
2 stops32h 21mAir Canada
Deal found 6/10$637
This Cheapflightsfares deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/28:20 pmSEA - EDI
1 stop13h 35mBritish Airways
Tue 9/235:50 amEDI - SEA
1 stop13h 20mBritish Airways
Deal found 6/11$642
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/121:00 pmSEA - EDI
1 stop13h 35mUnited Airlines
Tue 8/199:00 amEDI - SEA
2 stops38h 51mUnited Airlines
Deal found 6/9$651
This CrystalTravel deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/83:45 pmSEA - GLA
1 stop13h 40mIcelandair
Wed 10/2912:35 pmGLA - SEA
1 stop12h 25mIcelandair
Deal found 6/11$657
This FlightHub deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/273:35 pmSEA - EDI
1 stop11h 45mIcelandair
Fri 11/712:20 pmEDI - SEA
1 stop12h 40mIcelandair
Deal found 6/11$661
This Gotogate deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/411:30 pmSEA - LGW
1 stop31h 10mIcelandair
Fri 9/193:40 pmLGW - SEA
1 stop13h 00mIcelandair
Deal found 6/10$665
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/65:10 pmSEA - LHR
1 stop14h 30mDelta
Tue 10/215:25 pmLHR - SEA
Nonstop10h 25mDelta
Deal found 6/11$665
This Icelandair deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/243:45 pmSEA - LHR
1 stop12h 10mIcelandair
Mon 9/159:25 pmLHR - SEA
1 stop28h 25mIcelandair
Deal found 6/10$666
This SWISS deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2010:55 amSEA - LGW
2 stops23h 00mSWISS
Tue 9/236:35 pmLGW - SEA
2 stops32h 01mSWISS
Deal found 6/10$667

Cheapflights Fare Finder

Customize your flight search to find flights from Washington to United Kingdom that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Washington to the United Kingdom that are best for you.

Fly from

Washington

Fly to

United Kingdom

Route

Depart

Return

Price

SeattleEdinburgh

SEA - EDI

SEAEDI

Seattle/Tacoma Intl

Wed 8/20

4:00 pm-1:05 pm

1 stop13h 05m

Edinburgh Turnhouse

Sat 9/6

7:55 pm-1:50 pm

2 stops25h 55m

$613

SeattleEdinburgh

SEA - EDI

SEAEDI

Seattle/Tacoma Intl

Tue 7/22

7:35 pm-11:00 pm

1 stop19h 25m

Edinburgh Turnhouse

Tue 8/5

7:40 am-5:50 pm

1 stop18h 10m

$618

SeattleEdinburgh

SEA - EDI

SEAEDI

Seattle/Tacoma Intl

Mon 8/4

7:35 pm-7:50 pm

1 stop16h 15m

Edinburgh Turnhouse

Wed 8/20

11:55 am-5:50 pm

1 stop13h 55m

$633

SeattleEdinburgh

SEA - EDI

SEAEDI

Seattle/Tacoma Intl

Mon 8/4

7:20 am-9:05 am

1 stop17h 45m

Edinburgh Turnhouse

Wed 8/20

9:00 am-9:21 am

2 stops32h 21m

$637

SeattleEdinburgh

SEA - EDI

SEAEDI

Seattle/Tacoma Intl

Tue 9/2

8:20 pm-5:55 pm

1 stop13h 35m

Edinburgh Turnhouse

Tue 9/23

5:50 am-11:10 am

1 stop13h 20m

$642

SeattleEdinburgh

SEA - EDI

SEAEDI

Seattle/Tacoma Intl

Tue 8/12

1:00 pm-10:35 am

1 stop13h 35m

Edinburgh Turnhouse

Tue 8/19

9:00 am-3:51 pm

2 stops38h 51m

$651

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Wed 8/20

11:30 pm-1:25 pm

1 stop29h 55m

Glasgow Intl

Thu 8/28

2:20 pm-11:25 am

1 stop29h 05m

$661

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Mon 10/6

5:10 pm-3:40 pm

1 stop14h 30m

London Heathrow

Tue 10/21

5:25 pm-7:50 pm

Nonstop10h 25m

$665

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Thu 9/4

11:30 pm-2:40 pm

1 stop31h 10m

London Gatwick

Fri 9/19

3:40 pm-8:40 pm

1 stop13h 00m

$665

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Wed 8/20

10:55 am-5:55 pm

2 stops23h 00m

London Gatwick

Tue 9/23

6:35 pm-6:36 pm

2 stops32h 01m

$667

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Washington with our price prediction graph.
Estimated round-trip 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 from Washington to the United Kingdom

What is the cheapest month to book a flight from State of Washington to United Kingdom?

Currently, November is the cheapest month in which you can book a flight from State of Washington to United Kingdom (average of $661). Flying from State of Washington to United Kingdom in June is currently the most expensive (average of $1,108). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WA to GB?

Find hourly flight availability from Washington to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

When flying from State of Washington to United Kingdom, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from State of Washington to United Kingdom

Explore weekly flight availability from Washington to United Kingdom. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from USWA to GB0 are scheduled on a Monday (22 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 on average).

Rainfall in United Kingdom by month

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

In terms of precipitation, rainfall in United Kingdom ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit United Kingdom when rainfall is around 1.6 in.

Temperature in United Kingdom by month

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

If weather is an important factor for your trip to United Kingdom, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated June 12, 2025.
Read reviews from past customers who have flown Delta, Alaska Airlines and KLM from Washington to United Kingdom. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

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
8.0
Very good

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

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

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

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

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

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

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

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

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

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!

Related info for your journey

Find useful and relevant information for your journey from Washington to United Kingdom. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines to fly from State of Washington to United Kingdom one-way?

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at $254. WestJet flights start at $284 while deals on JetBlue start at $365 one-way.

  • Can I find deals for flights from Washington to United Kingdom that include hotel bookings?

    Yes. In addition to deals on Washington to United Kingdom flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to United Kingdom?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to United Kingdom.

  • Can I find deals for business class flights from Washington to United Kingdom?

    Yes. Cheapflights offers flight deals from Washington to United Kingdom by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from State of Washington to United Kingdom?

    Currently, November is the cheapest month in which you can book a flight from State of Washington to United Kingdom (average of $661). Flying from State of Washington to United Kingdom in June is currently the most expensive (average of $1,108). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Washington to United Kingdom

Discover the top 10 airlines that operate flights from Washington to United Kingdom. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$378Average$895FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$500Average$809FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$532Average$741FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$550Average$950FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$568Average$872FlexibilityNo cancel feeOn-time71%
IberiaCheapest$579Average$734FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$583Average$938FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$584Average$969FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$585Average$885FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$595Average$946FlexibilityNo cancel feeOn-time72%

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