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Heathrow

$379+ 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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LHR
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheap 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 December 23, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/22. 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 12/307:40 pmIAD - LHR
1 stop10h 10mIcelandair
Tue 1/1312:15 pmLHR - IAD
1 stop11h 15mIcelandair
Deal found 12/22$582
This CrystalTravel deal was found by Cheapflights users on 12/21. 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.
Mon 12/297:40 pmIAD - LHR
1 stop18h 50mIcelandair
Thu 1/2212:15 pmLHR - IAD
1 stop11h 15mIcelandair
Deal found 12/21$614
This Priceline deal was found by Cheapflights users on 12/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:15 pmDCA - LHR
1 stop31h 40mJetBlue
Sat 1/109:20 amLHR - DCA
1 stop30h 49mJetBlue
Deal found 12/21$639
This TAP AIR PORTUGAL deal was found by Cheapflights users on 12/21. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:30 pmIAD - LHR
1 stop12h 00mTAP AIR PORTUGAL
Wed 1/141:40 pmLHR - IAD
1 stop30h 35mTAP AIR PORTUGAL
Deal found 12/21$640
This CheapOair deal was found by Cheapflights users on 12/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:15 amDCA - LHR
1 stop22h 15mJetBlue
Fri 1/912:20 pmLHR - DCA
1 stop15h 39mJetBlue
Deal found 12/21$645
This oojo deal was found by Cheapflights users on 12/21. 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.
Mon 12/297:40 pmIAD - LHR
1 stop18h 50mIcelandair
Sun 1/118:35 pmLHR - IAD
1 stop26h 55mIcelandair
Deal found 12/21$658
This CheapOair deal was found by Cheapflights users on 12/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:15 amDCA - LHR
1 stop22h 15mJetBlue
Sun 1/117:45 amLHR - DCA
1 stop20h 14mJetBlue
Deal found 12/21$660
This Cheapflightsfares deal was found by Cheapflights users on 12/21. 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.
Mon 12/296:20 pmIAD - LHR
Nonstop7h 20mMultiple Airlines
Thu 1/229:00 amLHR - IAD
1 stop12h 40mMultiple Airlines
Deal found 12/21$685
This Cheapflightsfares deal was found by Cheapflights users on 12/21. 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 12/316:20 pmIAD - LHR
Nonstop7h 20mLufthansa
Wed 1/147:40 amLHR - IAD
1 stop12h 55mLufthansa
Deal found 12/21$690
This Cheapflightsfares deal was found by Cheapflights users on 12/22. 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 12/316:20 pmIAD - LHR
Nonstop7h 20mMultiple Airlines
Wed 1/146:00 amLHR - IAD
1 stop13h 40mMultiple Airlines
Deal found 12/22$698
This Cheapflightsfares deal was found by Cheapflights users on 12/21. 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.
Thu 12/257:40 pmIAD - LHR
1 stop10h 10mIcelandair
Fri 1/1612:15 pmLHR - IAD
1 stop11h 15mIcelandair
Deal found 12/21$701
This CheapOair deal was found by Cheapflights users on 12/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:15 amDCA - LHR
1 stop22h 15mJetBlue
Wed 1/149:20 amLHR - DCA
1 stop13h 14mJetBlue
Deal found 12/22$708

Find 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 December 23, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$574
(Mytrip)

One-way from

$379
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$986

Good round-trip deal

$674 or less

Good one-way deal

$435 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-London (LON) flights.
Search Deals
From District of Columbia to London Heathrow
Search Deals
One-way flight from District of Columbia to London Heathrow
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($54 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from District of Columbia to London Heathrow.
Search Deals
Price to beat on a one-way flight from District of Columbia to London Heathrow.
Search Deals

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 December 23, 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 2/26

8:30 pm-4:25 pm

2 stops14h 55m

London Heathrow

Thu 3/5

10:20 am-5:15 pm

1 stop11h 55m

$576

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sat 1/24

8:30 pm-6:50 pm

2 stops17h 20m

London Heathrow

Tue 2/3

9:05 pm-5:15 pm

2 stops25h 10m

$583

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sat 2/14

10:15 pm-10:50 am

Nonstop7h 35m

London Heathrow

Sun 3/1

6:50 am-2:35 pm

1 stop12h 45m

$614

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Thu 1/29

6:20 pm-6:40 am

Nonstop7h 20m

London Heathrow

Tue 2/3

6:50 am-2:35 pm

1 stop12h 45m

$614

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Thu 2/12

10:15 pm-10:50 am

Nonstop7h 35m

London Heathrow

Tue 2/17

6:50 am-2:35 pm

1 stop12h 45m

$614

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 1/20

10:15 pm-10:50 am

Nonstop7h 35m

London Heathrow

Tue 1/27

9:00 am-4:40 pm

1 stop12h 40m

$614

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 1/14

10:15 pm-10:50 am

Nonstop7h 35m

London Heathrow

Fri 1/23

9:00 am-4:40 pm

1 stop12h 40m

$614

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 1/11

10:15 pm-10:50 am

Nonstop7h 35m

London Heathrow

Wed 2/25

6:35 am-3:35 pm

1 stop14h 00m

$614

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 2/15

6:20 pm-6:40 am

Nonstop7h 20m

London Heathrow

Mon 2/23

6:50 am-2:35 pm

1 stop12h 45m

$614

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sat 1/24

6:05 pm-6:40 am

Nonstop7h 35m

London Heathrow

Sat 1/31

6:35 am-3:35 pm

1 stop14h 00m

$614

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

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, 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 $728). 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 December 23, 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 December 23, 2025.

The most flights from USDC to LHR are scheduled on a Monday (26 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (22 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 35m. 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 Icelandair. According to our data, you can fly for as low as $191. Users have also found prices from $213 and $222 on Scandinavian Airlines and TAP AIR PORTUGAL, 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 (95%), Air France (92%), Delta( 92%).

  • 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 $2,116, our data indicates the cheapest price to be $350. The most popular route (Washington, D.C. Dulles Intl - London Heathrow), is priced around $417.

  • 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 $728). 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
Ilford
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Croydon
Hayes
Orpington
Northampton
Watford
Borehamwood
Broadway
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
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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Newark to London City flights
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Boston to London City flights
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Hobby to Heathrow flights
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Newark to Stansted flights
Denver to Heathrow flights
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Minneapolis to Heathrow flights
Dulles Intl to London City flights
Los Angeles to Gatwick flights
Tampa to Heathrow flights
Baltimore to Gatwick flights
O'Hare Intl to Gatwick flights
Los Angeles to London City flights
San Francisco to Gatwick flights
Dulles Intl to Stansted flights
Reagan-National to Gatwick flights
George Bush Intcntl to Heathrow flights
O'Hare Intl to London City flights
Seattle to Gatwick flights
Boston to Stansted flights
Detroit to Heathrow flights
Raleigh to Heathrow flights
Charlotte to Heathrow flights
Austin to Heathrow flights
San Francisco to London City flights
Dallas/Fort Worth to Gatwick 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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$31Average$811FlexibilityNo cancel feeOn-time62%
TAP AIR PORTUGALCheapest$395Average$566FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$429Average$588FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$429Average$593FlexibilityNo cancel feeOn-time77%
PLAYCheapest$429Average$521FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$447Average$1,061FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$497Average$842FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$497Average$846FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$506Average$834FlexibilityNo cancel feeOn-time69%
KLMCheapest$520Average$615FlexibilityNo cancel feeOn-time75%

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