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$267+ Cheap flights from District of Columbia to Heathrow (LHR)

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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LHR
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from District of Columbia to Heathrow

Keep the following information in mind while searching for District of Columbia to Heathrow flight deals. Data was last updated September 17, 2025.

Round-trip from

$488
(FlightHub)

One-way from

$267

Popular in

June

Cheapest in

September

Average price

$636

Good round-trip deal

$648 or less

Good one-way deal

$384 or less
From District of Columbia to London Heathrow
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One-way flight from District of Columbia to London Heathrow
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Highest demand for flights based on searches. 11% potential increase in price ($98 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from District of Columbia to London Heathrow.
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Price to beat on a one-way flight from District of Columbia to London Heathrow.
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Find flight deals from District of Columbia to Heathrow

Cheapest flights from District of Columbia to Heathrow
Explore the most affordable flight options available from District of Columbia to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This FlightHub deal was found by Cheapflights users on 9/16. 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.
Wed 11/128:30 pmIAD - LHR
2 stops35h 25mScandinavian Airlines
Sat 11/156:40 amLHR - IAD
2 stops17h 10mScandinavian Airlines
Deal found 9/16$488
This Mytrip deal was found by Cheapflights users on 9/16. 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.
Sun 9/2811:15 pmIAD - LHR
1 stop31h 40mIcelandair
Tue 10/71:05 pmLHR - IAD
1 stop11h 15mIcelandair
Deal found 9/16$489
This Gotogate deal was found by Cheapflights users on 9/15. 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.
Wed 10/18:30 pmIAD - LHR
1 stop10h 25mIcelandair
Wed 10/89:25 pmLHR - IAD
1 stop26h 55mIcelandair
Deal found 9/15$491
This Mytrip deal was found by Cheapflights users on 9/15. 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 10/48:30 pmIAD - LHR
1 stop10h 25mIcelandair
Tue 10/149:25 pmLHR - IAD
1 stop26h 55mIcelandair
Deal found 9/15$495
This Gotogate deal was found by Cheapflights users on 9/16. 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.
Tue 9/238:30 pmIAD - LHR
1 stop10h 25mIcelandair
Tue 10/79:25 pmLHR - IAD
1 stop26h 55mIcelandair
Deal found 9/16$496
This oojo deal was found by Cheapflights users on 9/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/111:15 pmIAD - LHR
1 stop16h 05mIcelandair
Wed 10/151:05 pmLHR - IAD
1 stop14h 05mIcelandair
Deal found 9/14$497
This oojo deal was found by Cheapflights users on 9/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/308:30 pmIAD - LHR
1 stop10h 25mIcelandair
Wed 10/89:25 pmLHR - IAD
1 stop26h 55mIcelandair
Deal found 9/14$498
This oojo deal was found by Cheapflights users on 9/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:40 pmIAD - LHR
1 stop10h 10mIcelandair
Sun 11/168:35 pmLHR - IAD
1 stop26h 55mIcelandair
Deal found 9/14$499
This FlightHub deal was found by Cheapflights users on 9/14. 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 11/37:40 pmIAD - LHR
1 stop10h 10mIcelandair
Tue 3/312:15 pmLHR - IAD
1 stop11h 15mIcelandair
Deal found 9/14$500
This Mytrip deal was found by Cheapflights users on 9/14. 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 10/299:40 amDCA - LHR
2 stops17h 30mAir Canada
Wed 11/59:00 amLHR - DCA
2 stops17h 56mAir Canada
Deal found 9/14$537
This Ticket deal was found by Cheapflights users on 9/16. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/288:40 pmDCA - LHR
1 stop11h 50mVirgin Atlantic
Tue 10/712:45 pmLHR - DCA
1 stop11h 55mVirgin Atlantic
Deal found 9/16$538
This Ticket deal was found by Cheapflights users on 9/16. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/289:40 amDCA - LHR
1 stop15h 50mAir Canada
Tue 10/73:50 pmLHR - DCA
1 stop11h 44mAir Canada
Deal found 9/16$541

Cheapflights Fare Finder

 
Customize your flight search to find flights from District of Columbia to Heathrow 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 September 17, 2025.
Use the filters below to find and compare flights from District of Columbia to London Heathrow Airport that are best for you.

Fly from

District of Columbia

Fly to

Heathrow

Route

Depart

Return

Price

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Thu 11/13

7:40 pm-10:50 am

1 stop10h 10m

London Heathrow

Fri 11/21

12:15 pm-6:30 pm

1 stop11h 15m

$522

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 10/14

12:09 pm-9:35 am

2 stops16h 26m

London Heathrow

Tue 10/21

6:40 am-7:59 pm

1 stop18h 19m

$553

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 10/12

10:25 pm-10:40 am

Nonstop7h 15m

London Heathrow

Tue 10/21

12:10 pm-4:15 pm

1 stop33h 05m

$569

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 12/2

10:15 pm-10:50 am

Nonstop7h 35m

London Heathrow

Tue 12/9

9:00 am-4:40 pm

1 stop12h 40m

$569

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 11/5

8:45 am-7:10 am

2 stops17h 25m

London Heathrow

Thu 11/13

9:00 am-4:40 pm

1 stop12h 40m

$574

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 9/24

10:25 pm-10:40 am

Nonstop7h 15m

London Heathrow

Wed 10/8

7:45 am-2:25 pm

1 stop11h 40m

$577

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 10/6

10:25 pm-10:40 am

Nonstop7h 15m

London Heathrow

Wed 10/15

6:50 am-2:25 pm

1 stop12h 35m

$577

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 10/1

5:50 pm-6:20 am

Nonstop7h 30m

London Heathrow

Wed 10/15

11:30 am-7:15 pm

1 stop12h 45m

$580

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 9/24

5:50 pm-6:20 am

Nonstop7h 30m

London Heathrow

Fri 10/3

6:15 am-4:20 pm

1 stop15h 05m

$580

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 9/22

5:50 pm-6:20 am

Nonstop7h 30m

London Heathrow

Fri 10/10

9:00 am-7:15 pm

1 stop15h 15m

$580

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 46 results
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Best time to book a flight from District of Columbia to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from District of Columbia 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 District of Columbia to London Heathrow Airport

What is the cheapest month to book a flight from District of Columbia to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from District of Columbia to London Heathrow Airport (average of $661). Flying from District of Columbia to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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 DC to LHR?

Find hourly flight availability from District of Columbia to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

When flying from District of Columbia to London Heathrow Airport, 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 District of Columbia to London Heathrow Airport

Explore weekly flight availability from District of Columbia to Heathrow. 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 September 17, 2025.

The most flights from USDC to LHR are scheduled on a Monday (28 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (19 on average).

How much does it cost to fly round-trip from District of Columbia to London Heathrow Airport?

Related info for your journey

Find useful and relevant information for your journey from District of Columbia to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from District of Columbia to London Heathrow Airport?

    Departing from District of Columbia to London Heathrow Airport will take you 7h 15m. The distance between District of Columbia and London Heathrow Airport is about 3664 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from District of Columbia to London Heathrow Airport one-way?

    For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as $290. Users have also found prices from $294 and $295 on Scandinavian Airlines and JetBlue, respectively.

  • What are the most reliable airlines from District of Columbia to London Heathrow Airport?

    Before booking your flight to London Heathrow Airport from District of Columbia, check out the most reliable airlines to get you to your destination on time: Aeromexico (100%), KLM (80%), Air France( 80%).

  • What are the cheapest flights from District of Columbia to London Heathrow Airport?

    Looking for the cheapest flight from District of Columbia to London Heathrow Airport? While on average our users pay $1,998, our data indicates the cheapest price to be $347. The most popular route (Washington, D.C. Dulles Intl - London Heathrow), is priced around $424.

  • Can I find deals for flights from District of Columbia to Heathrow that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Heathrow.

  • Can I find deals for business class flights from District of Columbia to Heathrow?

    Yes. Cheapflights offers flight deals from District of Columbia to Heathrow 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 District of Columbia to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from District of Columbia to London Heathrow Airport (average of $661). Flying from District of Columbia to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Hayes
Southend-on-Sea
Harrow
Canterbury
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Wembley
Folkestone
Chichester

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for District of Columbia to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
Boston to Heathrow flights
LaGuardia to Heathrow flights
Dulles Intl to Heathrow flights
John F Kennedy Intl to London City flights
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John F Kennedy Intl to Gatwick flights
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Baltimore to Heathrow flights
LaGuardia to Gatwick flights
Newark to London City flights
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Atlanta to Heathrow flights
John F Kennedy Intl to Luton flights
John F Kennedy Intl to Stansted flights
Denver to Heathrow flights
Philadelphia to Heathrow flights
Miami to Heathrow flights
Reagan-National to Heathrow flights
Hobby to Heathrow flights
Boston to Gatwick flights
Boston to London City flights
Dulles Intl to Gatwick flights
Newark to Stansted flights
Newark to Luton flights
Dulles Intl to London City flights
Los Angeles to London City flights
Orlando to Heathrow flights
Baltimore to Gatwick flights
George Bush Intcntl to Heathrow flights
O'Hare Intl to Gatwick flights
Minneapolis to Heathrow flights
Reagan-National to Gatwick flights
O'Hare Intl to London City flights
Los Angeles to Gatwick flights
Dallas/Fort Worth to Gatwick flights
Raleigh to Heathrow flights
San Francisco to Gatwick flights
Tampa to Heathrow flights
Charlotte to Heathrow flights
Boston to Stansted flights
Sky Harbor Intl to Heathrow flights
LaGuardia to London City flights
Austin to Heathrow flights
San Diego to Heathrow flights
Boston to Luton flights

Top 10 airlines flying from District of Columbia to Heathrow

Discover the top 10 airlines that operate flights from District of Columbia to Heathrow. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$31Average$806FlexibilityNo cancel feeOn-time62%
PLAYCheapest$372Average$471FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$421Average$797FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$424Average$597FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$433Average$573FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$441Average$601FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$447Average$812FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$497Average$851FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$497Average$854FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$506Average$858FlexibilityNo cancel feeOn-time69%

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