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Heathrow

$250+ 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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LHR
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
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 November 3, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$561
(CrystalTravel)

One-way from

$250
(Mytrip)

Popular in

June

Cheapest in

September

Average price

$744

Good round-trip deal

$703 or less

Good one-way deal

$442 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 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 ($93 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 November 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 November 3, 2025.

This Booking.com deal was found by Cheapflights users on 11/2. 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.
Sun 11/910:20 pmIAD - LHR
Nonstop7h 30mVirgin Atlantic
Tue 11/184:50 pmLHR - IAD
Nonstop8h 40mVirgin Atlantic
Deal found 11/2$562
This Booking.com deal was found by Cheapflights users on 11/2. 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.
Sun 11/3010:20 pmIAD - LHR
Nonstop7h 30mVirgin Atlantic
Sun 12/78:40 amLHR - IAD
1 stop12h 25mVirgin Atlantic
Deal found 11/2$564
This oojo deal was found by Cheapflights users on 11/2. 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.
Thu 12/115:30 pmIAD - LHR
1 stop19h 00mTAP AIR PORTUGAL
Tue 12/166:00 amLHR - IAD
1 stop13h 35mTAP AIR PORTUGAL
Deal found 11/2$565
This CrystalTravel deal was found by Cheapflights users on 11/3. 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.
Sat 11/157:40 pmIAD - LHR
1 stop10h 10mIcelandair
Sat 11/2212:15 pmLHR - IAD
1 stop11h 15mIcelandair
Deal found 11/3$567
This KAYAK deal was found by Cheapflights users on 11/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:40 pmIAD - LHR
1 stop18h 50mIcelandair
Sun 11/238:35 pmLHR - IAD
1 stop26h 55mIcelandair
Deal found 11/1$568
This lastminute.com deal was found by Cheapflights users on 11/2. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:03 pmDCA - LHR
1 stop10h 02mVirgin Atlantic
Tue 11/184:35 pmLHR - DCA
1 stop11h 21mVirgin Atlantic
Deal found 11/2$569
This Icelandair deal was found by Cheapflights users on 11/2. 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.
Tue 12/97:40 pmIAD - LHR
1 stop10h 10mIcelandair
Wed 12/178:35 pmLHR - IAD
1 stop26h 55mIcelandair
Deal found 11/2$569
This CrystalTravel deal was found by Cheapflights users on 11/2. 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.
Tue 12/212:19 pmIAD - LHR
2 stops22h 41mScandinavian Airlines
Fri 12/57:50 pmLHR - IAD
2 stops28h 00mScandinavian Airlines
Deal found 11/2$570
This FlightHub deal was found by Cheapflights users on 11/3. 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 12/107:40 pmIAD - LHR
1 stop18h 50mIcelandair
Tue 1/68:35 pmLHR - IAD
1 stop26h 55mIcelandair
Deal found 11/3$571
This Scandinavian Airlines deal was found by Cheapflights users on 11/3. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1812:11 pmIAD - LHR
2 stops22h 49mScandinavian Airlines
Wed 12/37:05 amLHR - IAD
2 stops15h 10mScandinavian Airlines
Deal found 11/3$573
This Gotogate deal was found by Cheapflights users on 11/2. 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.
Sun 11/167:40 pmIAD - LHR
1 stop18h 50mIcelandair
Sat 11/228:35 pmLHR - IAD
1 stop26h 55mIcelandair
Deal found 11/2$574
This Delta deal was found by Cheapflights users on 11/3. 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.
Tue 12/210:20 pmIAD - LHR
Nonstop7h 30mDelta
Tue 12/98:55 amLHR - IAD
1 stop15h 20mDelta
Deal found 11/3$575

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 November 3, 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

Wed 11/12

10:20 pm-10:50 am

Nonstop7h 30m

London Heathrow

Tue 11/25

6:20 am-4:35 pm

1 stop15h 15m

$575

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 12/7

10:20 pm-10:50 am

Nonstop7h 30m

London Heathrow

Sun 12/14

6:30 am-4:05 pm

1 stop14h 35m

$579

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 11/10

10:20 pm-10:50 am

Nonstop7h 30m

London Heathrow

Fri 11/28

4:50 pm-8:30 pm

Nonstop8h 40m

$582

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 11/12

10:20 pm-10:50 am

Nonstop7h 30m

London Heathrow

Fri 11/28

4:50 pm-8:30 pm

Nonstop8h 40m

$582

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 11/26

5:59 pm-11:40 am

1 stop12h 41m

London Heathrow

Tue 12/2

4:50 pm-8:30 pm

Nonstop8h 40m

$587

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 1/21

10:20 pm-10:50 am

Nonstop7h 30m

London Heathrow

Sun 1/25

8:40 am-4:05 pm

1 stop12h 25m

$587

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 1/19

9:45 pm-10:00 am

Nonstop7h 15m

London Heathrow

Tue 1/27

4:25 pm-7:55 pm

Nonstop8h 30m

$590

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 11/19

6:50 pm-1:45 pm

1 stop13h 55m

London Heathrow

Fri 11/28

8:55 am-4:35 pm

1 stop12h 40m

$595

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Tue 11/18

5:03 pm-8:05 am

1 stop10h 02m

London Heathrow

Tue 11/25

4:35 pm-10:56 pm

1 stop11h 21m

$597

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Wed 12/10

2:55 pm-6:50 am

1 stop10h 55m

London Heathrow

Tue 12/16

10:10 am-5:59 pm

1 stop12h 49m

$597

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 45 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, March is the cheapest month in which you can book a flight from District of Columbia to London Heathrow Airport (average of $31). Flying from District of Columbia to London Heathrow Airport in June is currently the most expensive (average of $748). 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 November 3, 2025.

It’s typically best to fly out from District of Columbia to London Heathrow Airport in the morning. Doing so could potentially save you 26% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from District of Columbia to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from District of Columbia to Heathrow. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their District of Columbia to London Heathrow Airport flight should consider departing on Wednesday mornings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 3, 2025.

The most flights from USDC to LHR are scheduled on a Sunday (30 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (19 on average).

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 30m. 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 JetBlue. According to our data, you can fly for as low as $277. Users have also found prices from $341 and $373 on TAP AIR PORTUGAL and Icelandair, 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: KLM (88%), Aer Lingus (85%), American Airlines( 84%).

  • 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 $2,159, our data indicates the cheapest price to be $380. The most popular route (Washington, D.C. Dulles Intl - London Heathrow), is priced around $420.

  • 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, March is the cheapest month in which you can book a flight from District of Columbia to London Heathrow Airport (average of $31). Flying from District of Columbia to London Heathrow Airport in June is currently the most expensive (average of $748). 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
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone

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.
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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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$31Average$799FlexibilityNo cancel feeOn-time62%
TAP AIR PORTUGALCheapest$395Average$580FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$397Average$900FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$424Average$596FlexibilityNo cancel feeOn-time77%
PLAYCheapest$429Average$521FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$432Average$576FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$497Average$851FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$497Average$850FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$506Average$837FlexibilityNo cancel feeOn-time69%
KLMCheapest$520Average$654FlexibilityNo cancel feeOn-time75%

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