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$245+ 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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LHR
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$591
(oojo)

One-way from

$245
(Cheapflightsfares)

Popular in

June

Cheapest in

January

Average price

$673

Good round-trip deal

$697 or less

Good one-way deal

$447 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. 14% potential increase in price ($128 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 28, 2025.

This Gotogate deal was found by Cheapflights users on 3/27. 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.
Mon 5/128:30 pmIAD - LHR
1 stop18h 50mIcelandair
Mon 5/199:25 pmLHR - IAD
1 stop26h 55mIcelandair
Deal found 3/27$591
This Booking.com deal was found by Cheapflights users on 3/27. 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.
Sat 8/3010:05 pmIAD - LHR
1 stop30h 15mScandinavian Airlines
Sun 9/79:05 pmLHR - IAD
2 stops27h 54mScandinavian Airlines
Deal found 3/27$592
This JetBlue deal was found by Cheapflights users on 3/26. 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.
Mon 9/226:30 amDCA - LHR
1 stop9h 15mJetBlue
Thu 10/911:55 amLHR - DCA
1 stop16h 04mJetBlue
Deal found 3/26$593
This eDestinos deal was found by Cheapflights users on 3/27. 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 4/2310:40 pmIAD - LHR
Nonstop7h 25mIberia
Wed 4/306:15 amLHR - IAD
1 stop13h 45mIberia
Deal found 3/27$604
This eDestinos deal was found by Cheapflights users on 3/27. 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 4/239:00 pmIAD - LHR
1 stop11h 25mAer Lingus
Wed 4/301:25 pmLHR - IAD
1 stop11h 05mAer Lingus
Deal found 3/27$618
This Booking.com deal was found by Cheapflights users on 3/27. 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 4/215:50 pmIAD - LHR
Nonstop7h 30mVirgin Atlantic
Tue 4/299:00 amLHR - IAD
1 stop12h 20mVirgin Atlantic
Deal found 3/27$643
This Gotogate deal was found by Cheapflights users on 3/27. 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.
Mon 4/2112:55 pmDCA - LHR
1 stop12h 35mAir Canada
Tue 4/293:50 pmLHR - DCA
1 stop11h 38mAir Canada
Deal found 3/27$644
This oojo deal was found by Cheapflights users on 3/27. 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.
Sun 4/2010:40 pmIAD - LHR
Nonstop7h 25mBritish Airways
Thu 5/86:15 amLHR - IAD
2 stops22h 47mBritish Airways
Deal found 3/27$647
This TAP AIR PORTUGAL deal was found by Cheapflights users on 3/27. 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.
Tue 11/115:30 pmIAD - LHR
1 stop24h 10mTAP AIR PORTUGAL
Wed 11/196:30 pmLHR - IAD
1 stop25h 45mTAP AIR PORTUGAL
Deal found 3/27$648
This United deal was found by Cheapflights users on 3/27. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/163:55 pmIAD - LHR
1 stop13h 05mUnited Airlines
Tue 4/221:45 pmLHR - IAD
1 stop31h 30mUnited Airlines
Deal found 3/27$650
This The Travel House deal was found by Cheapflights users on 3/27. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/66:09 amDCA - LHR
2 stops19h 21mIcelandair
Fri 5/168:15 amLHR - DCA
1 stop19h 43mIcelandair
Deal found 3/27$655
This Finnair deal was found by Cheapflights users on 3/27. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2110:40 pmIAD - LHR
Nonstop7h 25mFinnair
Tue 4/295:00 pmLHR - IAD
Nonstop8h 10mFinnair
Deal found 3/27$657

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 March 28, 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

Sun 5/4

10:05 pm-9:40 pm

1 stop18h 35m

London Heathrow

Sun 5/11

10:20 am-7:59 pm

1 stop14h 39m

$591

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Thu 4/3

10:39 am-6:30 am

1 stop14h 51m

London Heathrow

Thu 4/10

8:25 am-4:59 pm

1 stop13h 34m

$593

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Thu 5/1

8:30 pm-11:55 am

1 stop10h 25m

London Heathrow

Sun 5/11

9:25 pm-7:20 pm

1 stop26h 55m

$599

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 4/23

10:40 pm-11:05 am

Nonstop7h 25m

London Heathrow

Wed 4/30

6:15 am-3:00 pm

1 stop13h 45m

$604

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 4/21

5:50 pm-6:20 am

Nonstop7h 30m

London Heathrow

Tue 4/29

11:45 am-3:35 pm

1 stop32h 50m

$619

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 4/23

5:20 pm-9:05 am

1 stop10h 45m

London Heathrow

Thu 4/24

12:00 pm-6:55 pm

1 stop11h 55m

$624

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 5/21

10:15 pm-10:40 am

Nonstop7h 25m

London Heathrow

Fri 5/23

8:40 am-4:15 pm

1 stop12h 35m

$630

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 4/15

3:55 pm-6:30 am

1 stop9h 35m

London Heathrow

Wed 4/23

7:30 pm-2:35 pm

1 stop24h 05m

$636

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Mon 4/21

12:55 pm-6:30 am

1 stop12h 35m

London Heathrow

Tue 4/29

3:50 pm-10:28 pm

1 stop11h 38m

$644

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 4/20

10:40 pm-11:05 am

Nonstop7h 25m

London Heathrow

Thu 5/8

6:15 am-12:02 am

2 stops22h 47m

$647

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 50 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 $1,115). 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 March 28, 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.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport 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 London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, 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 Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated March 28, 2025.
Read through reviews of airlines operating flights from District of Columbia to London, such as Delta, KLM and Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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
7,896 reviews
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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
1,321 reviews
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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
1,267 reviews
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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
1,570 reviews
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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.
Air France
7.4
Good
1,424 reviews
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

8.0

Boarding

8.2

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 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.

  • 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 $245. Users have also found prices from $247 and $319 on Icelandair 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: KLM (94%), Delta (94%), Air France( 93%).

  • 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 $2,637, our data indicates the cheapest price to be $380. The most popular route (Washington, D.C. Dulles Intl - London Heathrow), is priced around $398.

  • 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 $1,115). 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 District of Columbia?

Book flights to District of Columbia if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Luton
Wembley
Harrow
Horley
Canterbury
Gatwick
Dover
Orpington
Watford
Milton Keynes
Northampton
Stratford-upon-Avon
Croydon
Borehamwood
Bromley
Folkestone
Ilford

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
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Newark to London City flights
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Dulles Intl to Gatwick flights
Reagan-National to Heathrow flights
Dulles Intl to London City flights
LaGuardia to Gatwick flights
John F Kennedy Intl to Stansted flights
Hobby to Heathrow flights
Los Angeles to London City flights
Denver to Heathrow flights
Baltimore to Gatwick flights
Boston to London City flights
Orlando to Heathrow flights
Reagan-National to Gatwick flights
San Francisco to Gatwick flights
George Bush Intcntl to Heathrow flights
San Francisco to London City flights
Philadelphia to Heathrow flights
Sky Harbor Intl to Heathrow flights
O'Hare Intl to Gatwick flights
Austin to Heathrow flights
Boston to Stansted flights
O'Hare Intl to London City flights
Baltimore to Stansted flights
John F Kennedy Intl to Luton flights
Tampa to Heathrow flights
Los Angeles to Gatwick flights
Seattle to Gatwick flights
Minneapolis to Heathrow flights
Orlando to Gatwick flights
Charlotte to Heathrow flights
Dallas/Fort Worth to Gatwick flights
Raleigh to Heathrow 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$370Average$598FlexibilityNo cancel feeOn-time77%
PLAYCheapest$384Average$528FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$474Average$617FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$486Average$758FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$498Average$680FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$549Average$750FlexibilityNo cancel feeOn-time67%
DeltaCheapest$560Average$888FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$562Average$755FlexibilityNo cancel feeOn-time77%
FinnairCheapest$571Average$764FlexibilityNo cancel feeOn-time76%
SWISSCheapest$572Average$806FlexibilityNo cancel feeOn-time79%
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