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$182+ Cheap flights from Washington, D.C. (WAS) 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 3/26. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LHR
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Washington, D.C. to United Kingdom

Keep the following information in mind while searching for Washington, D.C. to United Kingdom flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$482
(Mytrip)

One-way from

$183
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$663

Good round-trip deal

$661 or less

Good one-way deal

$439 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-London (LON) flights.
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From Washington, D.C. (WAS) to United Kingdom
Search Deals
One-way flight from Washington, D.C. (WAS) to United Kingdom
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($139 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Washington, D.C. (WAS) to United Kingdom.
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Price to beat on a one-way flight from Washington, D.C. (WAS) to United Kingdom.
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Find flight deals from Washington, D.C. to United Kingdom

Cheapest flights from Washington, D.C. to United Kingdom
Explore the most affordable flight options available from Washington, D.C. to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This PLAY deal was found by Cheapflights users on 2/20. 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 PLAY is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/66:50 pmBWI - STN
1 stop10h 50mPLAY
Sat 9/1311:40 amSTN - BWI
1 stop11h 00mPLAY
Deal found 2/20$478
This Mytrip deal was found by Cheapflights users on 2/19. 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.
Wed 3/195:30 amBWI - STN
2 stops24h 30mMultiple Airlines
Wed 3/2611:00 amSTN - BWI
2 stops16h 58mMultiple Airlines
Deal found 2/19$480
This Norse deal was found by Cheapflights users on 2/19. 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 Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/23:13 pmBWI - LGW
1 stop13h 47mMultiple Airlines
Sun 4/2710:00 amLGW - BWI
1 stop27h 20mMultiple Airlines
Deal found 2/19$487
This Mytrip deal was found by Cheapflights users on 2/19. 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.
Sat 4/58:30 pmBWI - LGW
1 stop10h 15mIcelandair
Sat 4/123:40 pmLGW - BWI
1 stop32h 45mIcelandair
Deal found 2/19$493
This Booking.com deal was found by Cheapflights users on 2/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/108:30 pmBWI - LHR
1 stop10h 20mIcelandair
Wed 3/1912:15 pmLHR - BWI
1 stop11h 15mIcelandair
Deal found 2/19$502
This Mytrip deal was found by Cheapflights users on 2/20. 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.
Tue 3/117:10 pmBWI - LHR
1 stop20h 20mMultiple Airlines
Tue 3/188:40 pmLHR - BWI
1 stop25h 20mMultiple Airlines
Deal found 2/20$506
This eDestinos deal was found by Cheapflights users on 2/19. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/58:30 pmBWI - LHR
Nonstop7h 10mIberia
Wed 3/123:25 pmLHR - BWI
Nonstop8h 20mIberia
Deal found 2/19$533
This Gotogate deal was found by Cheapflights users on 2/18. 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.
Fri 5/28:30 pmIAD - LGW
1 stop10h 15mIcelandair
Fri 5/93:40 pmLGW - IAD
1 stop32h 40mIcelandair
Deal found 2/18$549
This JetBlue deal was found by Cheapflights users on 2/19. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/237:00 pmDCA - LGW
1 stop9h 35mJetBlue
Thu 10/912:10 pmLGW - DCA
1 stop12h 42mJetBlue
Deal found 2/19$549
This Mytrip deal was found by Cheapflights users on 2/18. 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.
Wed 3/198:40 pmIAD - STN
2 stops21h 35mMultiple Airlines
Wed 3/263:15 pmSTN - IAD
2 stops32h 10mMultiple Airlines
Deal found 2/18$550
This FlightHub deal was found by Cheapflights users on 2/20. 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.
Sat 10/411:15 pmIAD - LHR
1 stop31h 40mIcelandair
Sat 10/119:25 pmLHR - IAD
1 stop29h 45mIcelandair
Deal found 2/20$556
This Booking.com deal was found by Cheapflights users on 2/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/209:45 pmIAD - LHR
1 stop33h 30mMultiple Airlines
Sun 3/236:00 amLHR - IAD
1 stop13h 35mMultiple Airlines
Deal found 2/20$558

Find flights from Washington, D.C. to United Kingdom within your budget

Customize your flight search to find flights from Washington, D.C. 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 February 20, 2025.

Fly from

Washington, D.C.

Fly to

United Kingdom

Route

Depart

Return

Price

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Sun 3/2

6:10 pm-10:00 am

1 stop10h 50m

London Stansted

Wed 3/5

11:00 am-5:00 pm

1 stop11h 00m

$479

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Wed 3/19

5:30 am-10:00 am

2 stops24h 30m

London Stansted

Wed 3/26

11:00 am-11:58 pm

2 stops16h 58m

$480

BaltimoreLondon

BWI - LGW

BWILGW

Baltimore/Washington

Wed 4/2

3:13 pm-10:00 am

1 stop13h 47m

London Gatwick

Sun 4/27

10:00 am-8:20 am

1 stop27h 20m

$487

BaltimoreLondon

BWI - LGW

BWILGW

Baltimore/Washington

Sat 4/5

8:30 pm-11:45 am

1 stop10h 15m

London Gatwick

Sat 4/12

3:40 pm-7:25 pm

1 stop32h 45m

$493

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Mon 3/10

8:30 pm-10:50 am

1 stop10h 20m

London Heathrow

Wed 3/19

12:15 pm-7:30 pm

1 stop11h 15m

$502

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Tue 3/11

7:10 pm-7:30 pm

1 stop20h 20m

London Heathrow

Tue 3/18

8:40 pm-6:00 pm

1 stop25h 20m

$506

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Wed 3/5

8:30 pm-8:40 am

Nonstop7h 10m

London Heathrow

Wed 3/12

3:25 pm-7:45 pm

Nonstop8h 20m

$533

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Fri 5/2

8:30 pm-11:45 am

1 stop10h 15m

London Gatwick

Fri 5/9

3:40 pm-7:20 pm

1 stop32h 40m

$549

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 3/3

5:10 pm-9:20 am

1 stop11h 10m

London Heathrow

Wed 3/12

5:00 pm-4:40 pm

1 stop27h 40m

$559

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Tue 3/11

6:30 pm-9:50 am

1 stop11h 20m

London Gatwick

Tue 3/18

9:20 pm-10:00 pm

2 stops28h 40m

$561

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

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

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Washington, D.C. 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.

Travel insights for flights from Washington, D.C. to United Kingdom

Get recent, data-driven insights about flights from Washington, D.C. to United Kingdom including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Washington, D.C. to United Kingdom?

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to United Kingdom (average of $661). Flying from Washington, D.C. to United Kingdom in June is currently the most expensive (average of $1,136). 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 WAS to GB?

Find hourly flight availability from Washington, D.C. 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 February 20, 2025.

When flying from Washington, D.C. 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 Washington, D.C. to United Kingdom

Explore weekly flight availability from Washington, D.C. 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 February 20, 2025.

The most flights from WAS to GB0 are scheduled on a Thursday (23 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (12 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 February 20, 2025.
See what other customers who have flown with Delta, Porter Airlines and KLM from Washington, D.C. to United Kingdom have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,220 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Porter Airlines
7.9
Good
276 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,273 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.5
Good
1,568 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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 Washington, D.C. to United Kingdom one-way?

    To fly one-way, consider booking your trip with PLAY, which is currently one of the cheapest options available, starting at $183. Icelandair flights start at $239 while deals on TAP AIR PORTUGAL start at $287 one-way.

  • What are the most popular routes from Washington, D.C. to United Kingdom?

    When deciding which route to take from Washington, D.C. to United Kingdom consider Washington, D.C. Dulles Intl - London Heathrow, Baltimore/Washington - London Heathrow or Washington, D.C. Reagan-National - London Heathrow as they are the most popular.

  • What are the most reliable airlines from Washington, D.C. to United Kingdom?

    Consider Air France (93%), KLM (91%) or Delta (91%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. to United Kingdom.

  • What are the cheapest flights from Washington, D.C. to United Kingdom?

    On average you can expect to pay $1,410 for a flight from Washington, D.C. to United Kingdom. The cheapest flight overall is $379 while the most popular route, (Washington, D.C. Dulles Intl - London Heathrow) is currently priced at $498.

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

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

  • How can I find direct flights from Washington, D.C. 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, D.C. to United Kingdom.

  • Can I find deals for business class flights from Washington, D.C. to United Kingdom?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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 Washington, D.C. to United Kingdom?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to United Kingdom (average of $661). Flying from Washington, D.C. to United Kingdom in June is currently the most expensive (average of $1,136). 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

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Alternative routes for Washington, D.C. to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Washington, D.C. to United Kingdom

Discover the top 10 airlines that operate flights from Washington, D.C. 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$354Average$905FlexibilityNo cancel feeOn-time75%
PLAYCheapest$363Average$510FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$370Average$660FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$398Average$686FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$474Average$682FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$494Average$818FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$533Average$862FlexibilityNo cancel feeOn-time72%
IberiaCheapest$542Average$813FlexibilityNo cancel feeOn-time77%
DeltaCheapest$548Average$864FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$551Average$766FlexibilityNo cancel feeOn-time76%
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