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

A quick flight from District of Columbia to London Heathrow Airport can take about 7h 20m. United Airlines provides one of the quickest options available for as low as £546. 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 £163. Users have also found prices from £214 and £243 on Virgin Atlantic and JetBlue, respectively.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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

The cheapest flight price from District of Columbia to London Heathrow Airport is £243. On average you can expect to pay £583. The most popular route, (Washington, D.C. Dulles Intl - London Heathrow), can usually be booked for £260.

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: Aer Lingus (73%), Iberia (73%), KLM( 68%).

What are the most popular airlines that fly from District of Columbia to London Heathrow Airport?

The most popular airlines flying from District of Columbia to London Heathrow Airport are British Airways, United Airlines and Virgin Atlantic. Something to consider prior to booking your flight.

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 holiday 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.

£246+ Cheap Flights from District of Columbia to London Heathrow Airport

Cheap flight deals from District of Columbia to Heathrow

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 20 September 2026.

Wed 18/1118:05 -

Nonstop7h 10m

Wed 25/1107:35 -

1 stop13h 45m

Deal found 16/9£521

Sat 7/1119:40 -

2 stops17h 50m

Thu 12/1106:40 -

2 stops16h 50m

Deal found 16/9£522

Wed 21/1022:25 -

Nonstop7h 25m

Wed 4/1107:35 -

1 stop13h 45m

Deal found 19/9£522

Wed 7/1020:55 -

1 stop11h 35m

Fri 16/1009:50 -

1 stop10h 55m

Deal found 16/9£523

Mon 9/1112:55 -

1 stop12h 35m

Tue 24/1113:00 -

1 stop13h 59m

Deal found 18/9£524

Wed 14/1022:25 -

Nonstop7h 25m

Thu 10/1207:30 -

1 stop13h 50m

Deal found 16/9£524

Tue 3/1111:05 -

1 stop15h 05m

Tue 10/1113:00 -

1 stop13h 59m

Deal found 19/9£525

Mon 28/918:15 -

1 stop10h 10m

Wed 7/1007:50 -

1 stop12h 40m

Deal found 18/9£525

Tue 10/1109:40 -

2 stops28h 50m

Wed 18/1120:35 -

2 stops31h 03m

Deal found 15/9£525

Tue 24/1120:10 -

1 stop11h 50m

Tue 1/1206:00 -

1 stop16h 00m

Deal found 19/9£525

Tue 13/1020:20 -

1 stop16h 30m

Tue 1/1206:00 -

1 stop16h 00m

Deal found 16/9£526

Mon 16/1112:55 -

1 stop12h 35m

Wed 25/1113:00 -

1 stop26h 29m

Deal found 19/9£527

Best flights from District of Columbia to Heathrow
Discover carefully curated flight deals from District of Columbia to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 September 2026.

Tue 27/1019:20 -

Nonstop7h 20m

Tue 3/1116:20 -

Nonstop8h 55m

Deal found 15/9£546

Mon 9/1117:02 -

1 stop10h 03m

Thu 15/416:20 -

1 stop11h 44m

Deal found 18/9£563

Mon 26/1021:30 -

2 stops14h 55m

Tue 3/1117:30 -

2 stops28h 45m

Deal found 17/9£566

Sun 13/1219:39 -

1 stop11h 01m

Fri 15/108:55 -

1 stop12h 35m

Deal found 16/9£567

Wed 11/1118:55 -

Nonstop7h 25m

Mon 16/1113:20 -

Nonstop8h 40m

Deal found 18/9£579

Wed 13/121:55 -

Nonstop7h 15m

Sat 23/112:15 -

Nonstop8h 25m

Deal found 19/9£592

Sun 17/106:00 -

1 stop9h 55m

Wed 20/112:20 -

1 stop15h 35m

Deal found 18/9£673

Fri 16/1018:35 -

Nonstop7h 20m

Fri 30/1009:00 -

1 stop13h 00m

Deal found 18/9£567

Tue 10/1118:55 -

Nonstop7h 25m

Sun 15/1108:55 -

1 stop12h 35m

Deal found 19/9£576

Wed 4/1118:55 -

Nonstop7h 25m

Sun 8/1113:05 -

Nonstop8h 40m

Deal found 17/9£581

Sat 28/1120:30 -

1 stop31h 50m

Sun 31/118:40 -

1 stop27h 35m

Deal found 15/9£583

Fri 4/1218:20 -

Nonstop7h 20m

Mon 7/1213:45 -

1 stop32h 15m

Deal found 18/9£567

Fri 13/1114:06 -

1 stop11h 49m

Wed 14/411:55 -

1 stop16h 04m

Deal found 15/9£673

Thu 1/1006:10 -

1 stop9h 00m

Sun 4/1012:50 -

1 stop15h 09m

Deal found 19/9£630

Tue 6/1011:05 -

2 stops17h 30m

Wed 14/1019:50 -

2 stops32h 05m

Deal found 18/9£643

Thu 1/1006:45 -

1 stop9h 35m

Thu 15/1012:15 -

Nonstop8h 15m

Deal found 19/9£584

Sat 28/1112:55 -

1 stop12h 35m

Thu 4/213:00 -

1 stop13h 59m

Deal found 15/9£586

Wed 21/1011:05 -

2 stops17h 30m

Sun 25/1017:00 -

2 stops32h 55m

Deal found 15/9£646

Sat 7/1106:10 -

1 stop10h 10m

Fri 13/1112:05 -

Nonstop8h 35m

Deal found 15/9£587

Sat 24/1006:00 -

1 stop10h 25m

Wed 28/1013:00 -

1 stop25h 29m

Deal found 15/9£589

Sat 24/1006:00 -

1 stop9h 40m

Fri 30/1013:00 -

2 stops31h 28m

Deal found 15/9£598

Sat 16/107:00 -

1 stop9h 20m

Thu 21/110:25 -

1 stop17h 23m

Deal found 19/9£602

Fri 2/1006:00 -

1 stop10h 25m

Mon 5/1014:05 -

1 stop25h 15m

Deal found 17/9£626

Find flight deals from District of Columbia to Heathrow

Round-trip from	£521
One-way from	£246
Popular in	June
Cheapest in	February
Average price	£691
Good round-trip deal	£653 or less
Good one-way deal	£352 or less

Iberia
18/11-25/11
1 total stop
20h 55m total
District of Columbia to London

Search Deals

JetBlue
4/10-31/12
1 total stop
9h 15m total
District of Columbia to London

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£104 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

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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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Cheapflights Fare Finder

Use the filters below to find and compare flights from District of Columbia to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.London

DCA Washington, D.C. Reagan-National - LHR London Heathrow

DCALHR

Washington, D.C. Reagan-National

Mon 30/11

11:00-06:55

1 stop14h 55m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£246

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LHR London Heathrow

IADLHR

Washington, D.C. Dulles Intl

Wed 17/3

16:00-10:30

2 stops14h 30m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£246

Washington, D.C.London

DCA Washington, D.C. Reagan-National - LHR London Heathrow

DCALHR

Washington, D.C. Reagan-National

Sat 14/11

06:15-21:40

1 stop10h 25m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£246

Washington, D.C.London

DCA Washington, D.C. Reagan-National - LHR London Heathrow

DCALHR

Washington, D.C. Reagan-National

Sun 29/11

06:00-20:55

1 stop9h 55m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£246

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LHR London Heathrow

IADLHR

Washington, D.C. Dulles Intl

Wed 16/12

09:55-07:10

1 stop16h 15m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£267

Washington, D.C.London

DCA Washington, D.C. Reagan-National - LHR London Heathrow

DCALHR

Washington, D.C. Reagan-National

Tue 15/12

11:25-07:10

2 stops14h 45m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£271

Fastest return journey

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LHR London Heathrow

IADLHR

Washington, D.C. Dulles Intl

Thu 18/3

23:35-10:50

Nonstop7h 15m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£280

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LHR London Heathrow

IADLHR

Washington, D.C. Dulles Intl

Fri 19/3

09:55-07:10

1 stop17h 15m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£282

Washington, D.C.London

DCA Washington, D.C. Reagan-National - LHR London Heathrow

DCALHR

Washington, D.C. Reagan-National

Sat 26/9

06:30-20:45

1 stop9h 15m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£298

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LHR London Heathrow

IADLHR

Washington, D.C. Dulles Intl

Fri 25/12

18:20-06:40

Nonstop7h 20m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£310

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 44 resultsSorted by cheapest first

...

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.

DCA-LHR

IAD-LHR

Estimated return 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

USDC-LHR

DCA-LHR

IAD-LHR

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

Currently, February is the cheapest month in which you can book a flight from District of Columbia to London Heathrow Airport (average of £515). Flying from District of Columbia to London Heathrow Airport in June is currently the most expensive (average of £976). 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?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from District of Columbia to London Heathrow Airport as you normally would.

Weekly flight availability from District of Columbia to London Heathrow Airport

The most flights from USDC to LHR are scheduled on a Friday (29 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (16 on average).

How much does it cost for a return flight from District of Columbia to London Heathrow Airport?

Airfare is below average for this route at the moment.

District of Columbia to London Heathrow Airport flights typically cost between £545 and £790 in November.
The cheapest return price found within the last 5 days was £521 on Iberia (18 Nov–25 Nov).

How far ahead should I book a flight from District of Columbia to London Heathrow Airport?

To ensure you get the cheapest price possible for a flight from District of Columbia to London Heathrow Airport, you should look to book at least 65 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.

Related info for your journey

How long is the flight from District of Columbia to London Heathrow Airport?
A quick flight from District of Columbia to London Heathrow Airport can take about 7h 20m. United Airlines provides one of the quickest options available for as low as £546. 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 £163. Users have also found prices from £214 and £243 on Virgin Atlantic 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: Aer Lingus (73%), Iberia (73%), KLM( 68%).
What are the cheapest flights from District of Columbia to London Heathrow Airport?
The cheapest flight price from District of Columbia to London Heathrow Airport is £243. On average you can expect to pay £583. The most popular route, (Washington, D.C. Dulles Intl - London Heathrow), can usually be booked for £260.
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 holiday 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, February is the cheapest month in which you can book a flight from District of Columbia to London Heathrow Airport (average of £515). Flying from District of Columbia to London Heathrow Airport in June is currently the most expensive (average of £976). 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.

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Top 5 airlines flying from District of Columbia to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£232	Average£630	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
British Airways	Cheapest£430	Average£650	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Virgin Atlantic	Cheapest£451	Average£593	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
United Airlines	Cheapest£494	Average£724	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Delta	Cheapest£595	Average£965	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights

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Cheap flights from District of Columbia to London Heathrow Airport from £246

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from District of Columbia to Heathrow

Cheapest flights from District of Columbia to HeathrowExplore 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 20 September 2026.

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 20 September 2026.

Best flights from District of Columbia to HeathrowDiscover carefully curated flight deals from District of Columbia to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 September 2026.

Discover carefully curated flight deals from District of Columbia to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 September 2026.

Direct flights from District of Columbia to HeathrowExplore direct flight options from District of Columbia to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 20 September 2026.

Explore direct flight options from District of Columbia to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 20 September 2026.

Last-minute flights from District of Columbia to HeathrowDiscover last-minute flight deals from District of Columbia to Heathrow. Data last updated 20 September 2026 and is based on user searches.

Discover last-minute flight deals from District of Columbia to Heathrow. Data last updated 20 September 2026 and is based on user searches.

One-way flights from District of Columbia to HeathrowSearch for one-way flight options from District of Columbia to Heathrow. Find affordable one-way fares based on user searches. Data last updated 20 September 2026.

Search for one-way flight options from District of Columbia to Heathrow. Find affordable one-way fares based on user searches. Data last updated 20 September 2026.

Find flight deals from District of Columbia to Heathrow

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Popular in

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Use the filters below to find and compare flights from District of Columbia to London Heathrow Airport that are best for you.

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.

Cheapflights Insights

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

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 20 September 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from District of Columbia to London Heathrow Airport as you normally would.

Weekly flight availability from District of Columbia to London Heathrow Airport

The most flights from USDC to LHR are scheduled on a Friday (29 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (16 on average).

How much does it cost for a return flight from District of Columbia to London Heathrow Airport?

Airfare is below average for this route at the moment.

District of Columbia to London Heathrow Airport flights typically cost between £545 and £790 in November.The cheapest return price found within the last 5 days was £521 on Iberia (18 Nov–25 Nov).

How far ahead should I book a flight from District of Columbia to London Heathrow Airport?

Related info for your journey

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

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

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

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

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

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

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

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

Travelling to a place near London Heathrow Airport?

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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.

Complete your trip

Complete your trip to Heathrow by adding a car hire and/or hotel booking to your travel itinerary.

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Search flights from District of Columbia to Heathrow by cabin class

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Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 20 September 2026.

District of Columbia and Heathrow flights

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Top 5 airlines flying from District of Columbia to Heathrow

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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 20 September 2026.

Best flights from District of Columbia to Heathrow
Discover carefully curated flight deals from District of Columbia to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 September 2026.

Direct flights from District of Columbia to Heathrow
Explore direct flight options from District of Columbia to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 20 September 2026.

Last-minute flights from District of Columbia to Heathrow
Discover last-minute flight deals from District of Columbia to Heathrow. Data last updated 20 September 2026 and is based on user searches.

One-way flights from District of Columbia to Heathrow
Search for one-way flight options from District of Columbia to Heathrow. Find affordable one-way fares based on user searches. Data last updated 20 September 2026.

District of Columbia to London Heathrow Airport flights typically cost between £545 and £790 in November.
The cheapest return price found within the last 5 days was £521 on Iberia (18 Nov–25 Nov).