Cheap flights from London (LON) to Washington, D.C. (WAS) from $250

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 9/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
LON — WAS
Jun 12 — Jun 191

The best prices from London to Washington, D.C. are usually found in November or September, booked 59 days in advance, depart on a Wednesday or Saturday and return on a Wednesday

Cheap flight deals from London to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 7, 2024.

Popular in

July

Cheapest in

November

Average price

$755

Round-trip from

$234
High demand for flights, 17% potential price rise
Best time to find cheap flights, 18% potential price drop
Average for round-trip flights in June 2024
From London (LON) to Washington, D.C. (WAS)

What is the cheapest day to fly round-trip from London to Washington, D.C.?

It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from London to Washington, D.C.?

Find a great deal and save up to 24% by booking at least 60 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from London to Washington, D.C. within the next two weeks, with the cheapest ticket starting at $690.

What is the cheapest month to fly from London to Washington, D.C.?

November is one of the best times of the year to fly to Washington, D.C. from London. Prices for November average $648 per person but you can even find prices for as low as $355. The most expensive prices can be found in the month of July. Opting for a November flight can save you 20% on your journey compared to booking in July

What is the cheapest time of day to fly from LON to WAS?

A simple way to save on the total cost of your ticket is to fly from London to Washington, D.C. in the morning. If you’re flexible enough to do this you can expect to save up to 26% on your trip compared to booking a flight in the evening.

Cheap London to Washington, D.C. flights in June & July 2024

Find cheap flight options from London to Washington, D.C. specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on June 7, 2024.
Listed are some of the best fares we've found on flights departing from London to Washington, D.C. in 2024. For more flight deals, be sure to check back very soon.
Wed 6/1211:40 amSTN - BWI
1 stop11h 00mPLAY
Sun 7/216:50 pmBWI - STN
1 stop10h 50mPLAY
Deal found 6/6$475
Wed 6/2611:40 amSTN - BWI
1 stop11h 00mPLAY
Sun 7/146:50 pmBWI - STN
1 stop10h 50mPLAY
Deal found 6/6$494
Wed 6/127:55 amSTN - BWI
2 stops14h 45mMultiple Airlines
Sun 7/216:50 pmBWI - STN
1 stop10h 50mMultiple Airlines
Deal found 6/5$520
Wed 6/1911:40 amSTN - IAD
1 stop11h 00mPLAY
Sat 7/206:50 pmIAD - STN
1 stop10h 50mPLAY
Deal found 6/6$537
Wed 6/2611:40 amSTN - IAD
1 stop11h 00mPLAY
Sun 7/146:50 pmIAD - STN
1 stop10h 50mPLAY
Deal found 6/6$545
Wed 7/177:55 amLHR - IAD
1 stop14h 45mMultiple Airlines
Sun 10/136:50 pmIAD - LHR
1 stop15h 05mMultiple Airlines
Deal found 6/6$551
Wed 7/1711:40 amSTN - IAD
1 stop11h 00mPLAY
Mon 10/146:50 pmIAD - STN
1 stop10h 50mPLAY
Deal found 6/6$554
Wed 6/1911:40 amSTN - BWI
1 stop11h 00mPLAY
Sat 7/206:50 pmBWI - STN
1 stop10h 50mPLAY
Deal found 6/6$557
Wed 7/177:55 amLHR - IAD
1 stop14h 45mMultiple Airlines
Fri 10/116:50 pmIAD - LHR
1 stop14h 25mMultiple Airlines
Deal found 6/6$560

London to Washington, D.C. 2024 flight deals

Discover exclusive flight deals for travel between London and Washington, D.C. in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 7, 2024.
Listed are some of the best fares we've found on flights departing from London to Washington, D.C. in 2024. For more flight deals, be sure to check back very soon.
Mon 9/2311:40 amSTN - IAD
1 stop11h 00mPLAY
Mon 9/306:50 pmIAD - STN
1 stop10h 50mPLAY
Deal found 6/6$367
Thu 9/1211:40 amSTN - IAD
1 stop11h 00mPLAY
Fri 9/206:50 pmIAD - STN
1 stop10h 50mPLAY
Deal found 6/6$369
Sat 9/1411:40 amSTN - IAD
1 stop11h 00mPLAY
Tue 9/176:50 pmIAD - STN
1 stop10h 50mPLAY
Deal found 6/6$371
Mon 9/911:40 amSTN - IAD
1 stop11h 00mPLAY
Sat 9/216:50 pmIAD - STN
1 stop10h 50mPLAY
Deal found 6/6$372
Thu 9/1211:40 amSTN - BWI
1 stop11h 00mPLAY
Fri 9/206:50 pmBWI - STN
1 stop10h 50mPLAY
Deal found 6/6$376
Fri 9/1311:40 amSTN - BWI
1 stop11h 00mPLAY
Mon 9/236:50 pmBWI - STN
1 stop10h 50mPLAY
Deal found 6/6$379
Wed 9/411:40 amSTN - BWI
1 stop11h 00mPLAY
Wed 9/256:50 pmBWI - STN
1 stop10h 50mPLAY
Deal found 6/6$380
Mon 9/2311:40 amSTN - IAD
1 stop11h 00mPLAY
Mon 9/306:50 pmIAD - STN
1 stop10h 50mPLAY
Deal found 6/7$382
Sat 9/2111:40 amSTN - IAD
1 stop11h 00mPLAY
Sun 9/296:50 pmIAD - STN
1 stop10h 50mPLAY
Deal found 6/5$383

London to Washington, D.C. flights leaving soon

Find last-minute flight options from London to Washington, D.C. for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 7, 2024.
Have a look at some of the flights available from London to Washington, D.C. departing last-minute. Users should examine the flight details to ensure there are no surprises.
Wed 6/1211:40 amSTN - BWI
1 stop11h 00mPLAY
Sun 7/216:50 pmBWI - STN
1 stop10h 50mPLAY
Deal found 6/6$475
Wed 6/127:55 amSTN - BWI
2 stops14h 45mMultiple Airlines
Sun 7/216:50 pmBWI - STN
1 stop10h 50mMultiple Airlines
Deal found 6/5$520
Thu 6/1311:40 amSTN - BWI
1 stop11h 00mPLAY
Fri 7/126:50 pmBWI - STN
1 stop10h 50mPLAY
Deal found 6/6$573
Thu 6/1311:40 amSTN - IAD
1 stop11h 00mPLAY
Fri 7/126:50 pmIAD - STN
1 stop10h 50mPLAY
Deal found 6/6$573
Thu 6/1311:40 amSTN - BWI
1 stop11h 00mPLAY
Mon 8/266:50 pmBWI - STN
1 stop10h 50mPLAY
Deal found 6/6$576
Sun 6/1611:40 amSTN - BWI
1 stop11h 00mPLAY
Tue 6/186:50 pmBWI - STN
1 stop10h 50mPLAY
Deal found 6/6$614
Thu 6/1311:40 amSTN - BWI
1 stop11h 00mPLAY
Tue 6/256:50 pmBWI - STN
1 stop10h 50mPLAY
Deal found 6/6$622
Thu 6/1311:40 amSTN - IAD
1 stop11h 00mPLAY
Tue 6/256:50 pmIAD - STN
1 stop10h 50mPLAY
Deal found 6/6$640
Fri 6/1411:40 amSTN - BWI
1 stop11h 00mPLAY
Mon 8/266:50 pmBWI - STN
1 stop10h 50mPLAY
Deal found 6/7$657

One-way flights to Washington, D.C. from London

Search for one-way flight options from London to Washington, D.C.. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 7, 2024.
Take a look at some of the best available options we've come across on one-way flights from London to Washington, D.C.. Those needing a return flight from London to Washington, D.C. can use the search form above.
Sat 9/146:35 amLGW - IAD
1 stop16h 05mMultiple Airlines
Deal found 6/6$250
Sat 9/146:35 amLGW - BWI
1 stop16h 05mMultiple Airlines
Deal found 6/6$274
Mon 9/97:25 pmLGW - BWI
2 stops51h 15mMultiple Airlines
Deal found 6/6$288
Sat 9/146:15 pmSTN - BWI
2 stops28h 25mMultiple Airlines
Deal found 6/6$289
Sat 10/129:05 pmLGW - IAD
3 stops47h 35mMultiple Airlines
Deal found 6/6$291
Wed 9/256:00 amLGW - BWI
1 stop16h 40mMultiple Airlines
Deal found 6/5$292
Wed 6/196:00 amLGW - IAD
1 stop16h 40mMultiple Airlines
Deal found 6/6$293
Thu 9/122:50 pmSTN - BWI
2 stops31h 50mMultiple Airlines
Deal found 6/6$298
Tue 10/296:50 pmSTN - BWI
3 stops27h 05mMultiple Airlines
Deal found 6/6$305

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

Customize your flight search to find flights from London to Washington, D.C. 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 3,050,429 searches. Data last updated June 7, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$367 - $719

Route

Depart

Return

Price

London StanstedWashington, D.C. Dulles Intl

STN - IAD

STNIAD

London Stansted

Mon 9/23

1 stop11h 00m

Washington, D.C. Dulles Intl

Mon 9/30

1 stop10h 50m

$367

London GatwickWashington, D.C. Dulles Intl

LGW - IAD

LGWIAD

London Gatwick

Sat 9/14

1 stop16h 05m

Washington, D.C. Dulles Intl

Tue 9/17

1 stop13h 25m

$413

London GatwickWashington, D.C. Reagan-National

LGW - DCA

LGWDCA

London Gatwick

Tue 9/17

1 stop13h 36m

Washington, D.C. Reagan-National

Tue 9/24

1 stop10h 35m

$512

London GatwickWashington, D.C. Dulles Intl

LGW - IAD

LGWIAD

London Gatwick

Thu 10/24

1 stop14h 45m

Washington, D.C. Dulles Intl

Tue 11/5

1 stop11h 20m

$533

London GatwickWashington, D.C. Reagan-National

LGW - DCA

LGWDCA

London Gatwick

Fri 9/13

1 stop24h 31m

Washington, D.C. Reagan-National

Mon 9/23

1 stop9h 00m

$570

London HeathrowWashington, D.C. Dulles Intl

LHR - IAD

LHRIAD

London Heathrow

Thu 10/3

1 stop23h 55m

Washington, D.C. Dulles Intl

Thu 10/24

1 stop19h 25m

$624

London GatwickWashington, D.C. Dulles Intl

LGW - IAD

LGWIAD

London Gatwick

Sun 11/24

1 stop31h 45m

Washington, D.C. Dulles Intl

Sun 12/1

1 stop13h 15m

$655

London HeathrowWashington, D.C. Dulles Intl

LHR - IAD

LHRIAD

London Heathrow

Thu 10/31

Nonstop8h 50m

Washington, D.C. Dulles Intl

Sat 11/9

1 stop32h 55m

$705

London HeathrowWashington, D.C. Dulles Intl

LHR - IAD

LHRIAD

London Heathrow

Wed 10/2

2 stops24h 08m

Washington, D.C. Dulles Intl

Wed 10/16

1 stop22h 15m

$719

Flights are sorted by cheapest first

Deals found on 6/6

How far ahead should I book a flight from London to Washington, D.C.?

Use this chart to determine the optimal time to book a round-trip flight from London to Washington, D.C.. Price data was last updated on May 31, 2024.
To ensure you get the cheapest price possible for a flight from London to Washington, D.C., you should look to book at least 59 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

What is the cheapest day to fly from London to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from London to Washington, D.C.. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their London to Washington, D.C. flight should consider departing on Friday evenings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from London to Washington, D.C.

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

Temperature and rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature and rainfall totals by month.

WAS

Temperature

35.6 - 80.6 °F

If weather is an important factor for your trip to Washington, D.C., 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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, D.C.. Reviews last updated June 7, 2024.
Peruse reviews from past customers who have flown with TAP AIR PORTUGAL, PLAY and Virgin Atlantic from London to Washington, D.C. to help guide your decision. 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
10,363 reviews

Entertainment

8.0

Overall

8.0

Boarding

8.2

Food

7.4

Crew

8.6

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

8.0
Very good
10,363 reviews
8.0
Very good
10,363 reviews

Entertainment

8.0

Overall

8.0

Boarding

8.2

Food

7.4

Crew

8.6

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.9
Good
1,483 reviews
8.0
Very good
10,363 reviews

Entertainment

8.0

Overall

8.0

Boarding

8.2

Food

7.4

Crew

8.6

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.8
Good
1,927 reviews
8.0
Very good
10,363 reviews

Entertainment

8.0

Overall

8.0

Boarding

8.2

Food

7.4

Crew

8.6

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.8
Good
1,362 reviews
8.0
Very good
10,363 reviews

Entertainment

8.0

Overall

8.0

Boarding

8.2

Food

7.4

Crew

8.6

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.7
Good
999 reviews
8.0
Very good
10,363 reviews

Entertainment

8.0

Overall

8.0

Boarding

8.2

Food

7.4

Crew

8.6

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from London to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find flights from London to Washington, D.C. for under $400 on Cheapflights?

    Yes, there are multiple flights from London to Washington, D.C. for under $400. The cheapest flight booked recently is on PLAY for just $367, but on average you can expect to pay $384.

  • Are there nonstop flights from London to Washington, D.C. for under $800 on Cheapflights?

    Cheapflights has at least 20 direct flights from London to Washington, D.C. under $800. A good price for a nonstop flight from London to Washington, D.C. is less than $751.

  • Are there last-minute flights available from London to Washington, D.C. for under $500?

    There are currently 20+ open flights from London to Washington, D.C. within the next 7 days for less than $500.

  • What is the cheapest airline to fly from London to Washington, D.C. round-trip?

    Flying on PLAY is currently your cheapest option to Washington, D.C., with prices starting at $367. This flight start at 43% lower than the current average price 3 months from now.

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

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

    Before booking your flight to Washington, D.C. from London, check out the most reliable airlines to get you to your destination on time: Air Canada (79%), Austrian Airlines (79%), Copa Airlines( 79%).

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

    Looking at all options, your cheapest flight can be booked for $661. While the most popular route (London Heathrow - Washington, D.C. Dulles Intl) can be booked for $493 on average our data indicates $1,771 when flying from London to Washington, D.C..

  • What does LHR to IAD mean?

    Great question - LHR to IAD just means London Heathrow Airport to Washington, D.C. Dulles Intl Airport. Now you’ll know what these unique codes when you look for flights! Ready for more IATA code knowledge? These are related airports for your current travel destination: Baltimore/Washington Airport (BWI), Washington, D.C. Reagan-National Airport (DCA).

  • Can I find deals for flights from London to Washington, D.C. that include extra baggage allowance?

    The amount of baggage you can bring on your London to Washington, D.C. flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from London to Washington, D.C. with specific airlines?

    Yes, Cheapflights allows you to browse and filter London to Washington, D.C. flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

  • How can I find direct flights from London to Washington, D.C.?

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

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

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

  • Can I find deals for flights from London to Washington, D.C. that allow pets onboard?

    Many airlines flying from London to Washington, D.C. offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from London to Washington, D.C.?

    Yes, you can often find last-minute deals on London to Washington, D.C. flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the London to Washington, D.C. flight deals updated?

    The London to Washington, D.C. flight deals you see on this page were last updated on 6/7.

  • What are the most popular airlines that fly from London to Washington, D.C.?

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

    Currently, September is the cheapest month in which you can book a flight from London to Washington, D.C. (average of $278). Flying from London to Washington, D.C. in June is currently the most expensive (average of $382). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 10 airlines flying from London to Washington, D.C.

Discover the top 10 airlines that operate flights from London to Washington, D.C.. 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 3,050,429 searches. Data last updated June 7, 2024.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$362Average$471FlexibilityNo cancel feeOn-timeN/A
Norse Atlantic UKCheapest$448Average$695FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$525Average$647FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$528Average$635FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$531Average$826FlexibilityNo cancel feeOn-time72%
Aer LingusCheapest$533Average$739FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$578Average$799FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$582Average$861FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$587Average$875FlexibilityNo cancel feeOn-time69%
DeltaCheapest$599Average$934FlexibilityNo cancel feeOn-timeN/A

Search flights from London to Washington, D.C. by cabin class

Find flights from London to Washington, D.C., based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from London to Washington, D.C.

Find hourly flight availability from London to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 7, 2024.
0%of flight departuresEarly morningMidnight to 6 am
35%of flight departuresMorning6 am to noon
65%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from London to Washington, D.C.

Explore weekly flight availability from London to Washington, D.C.. 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 7, 2024.
Sunday30daily flights
Monday30daily flights
Tuesday30daily flights
Wednesday30daily flights
Thursday30daily flights
Friday30daily flights
Saturday30daily flights
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