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 $302. Users have also found prices from $304 and $319 on TAP AIR PORTUGAL and JetBlue, respectively.

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 $1,844, our data indicates the cheapest price to be $374. The most popular route (Washington, D.C. Dulles Intl - London Heathrow), is priced around $426.

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: American Airlines (50%), Aer Lingus (50%), Finnair( 50%).

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

Before booking your flight from District of Columbia to London Heathrow Airport check out the most popular airlines for this route: American Airlines, Finnair or British Airways.

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

Find a great deal and save up to 30% by booking at least 48 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from District of Columbia to London Heathrow Airport within the next two weeks, with the cheapest ticket starting at $802.

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

January is one of the best times of the year to fly to London Heathrow Airport from District of Columbia. Prices for January average $743 per person but you can even find prices for as low as $385. The most expensive prices can be found in the month of June. Opting for a January flight can save you 29% on your journey compared to booking in June

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.

$298+ Flights from District of Columbia to London Heathrow Airport

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from District of Columbia to Heathrow with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from District of Columbia to Heathrow

Round-trip from	$656 (United)
One-way from	$301 (Mytrip)
Popular in	June
Cheapest in	January
Average price	$962
Good round-trip deal	$687 or less
Good one-way deal	$446 or less

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. 12% potential increase in price ($111 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in June 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

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 junio 12, 2025.

mié. 7/306:35 pmIAD - LHR

Nonstop7h 20mUnited Airlines

lun. 8/412:10 pmLHR - IAD

1 stop33h 05mUnited Airlines

Deal found 6/10

$656

mar. 7/229:35 amIAD - LHR

1 stop15h 55mMultiple Airlines

lun. 7/288:05 pmLHR - IAD

1 stop25h 10mMultiple Airlines

Deal found 6/9

$657

mié. 7/164:51 pmDCA - LHR

1 stop10h 59mVirgin Atlantic

sáb. 8/24:50 pmLHR - DCA

1 stop11h 45mVirgin Atlantic

Deal found 6/10

$658

lun. 7/712:00 pmIAD - LHR

1 stop20h 10mDelta

lun. 7/218:10 pmLHR - IAD

1 stop20h 52mDelta

Deal found 6/9

$658

jue. 11/2011:00 amDCA - LHR

1 stop15h 10mMultiple Airlines

mar. 11/256:50 amLHR - DCA

2 stops13h 29mMultiple Airlines

Deal found 6/10

$659

dom. 8/2410:05 pmIAD - LHR

1 stop18h 35mScandinavian Airlines

dom. 10/1910:20 amLHR - IAD

1 stop14h 39mScandinavian Airlines

Deal found 6/10

$659

jue. 7/316:00 amDCA - LHR

1 stop23h 00mAir Canada

mié. 8/139:30 amLHR - DCA

1 stop17h 18mAir Canada

Deal found 6/10

$660

vie. 11/72:00 pmDCA - LHR

1 stop10h 55mJetBlue

sáb. 11/1512:20 pmLHR - DCA

1 stop15h 27mJetBlue

Deal found 6/10

$661

vie. 7/2510:40 pmIAD - LHR

Nonstop7h 25mAmerican Airlines

vie. 8/12:25 pmLHR - IAD

Nonstop8h 05mAmerican Airlines

Deal found 6/10

$661

vie. 8/296:00 amDCA - LHR

1 stop9h 40mUnited Airlines

vie. 9/512:40 pmLHR - DCA

2 stops26h 48mUnited Airlines

Deal found 6/10

$662

sáb. 7/52:54 pmDCA - LHR

1 stop25h 46mIberia

lun. 8/115:00 pmLHR - DCA

1 stop11h 18mIberia

Deal found 6/12

$663

lun. 7/1410:40 pmIAD - LHR

Nonstop7h 25mIberia

lun. 7/214:25 pmLHR - IAD

1 stop23h 34mIberia

Deal found 6/12

$663

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 layovers in mind to ensure you get the best travel experience. Data last updated junio 12, 2025.

mié. 7/306:35 pmIAD - LHR

Nonstop7h 20mMultiple Airlines

lun. 8/41:45 pmLHR - IAD

1 stop31h 30mMultiple Airlines

Deal found 6/10

$656

mié. 7/164:51 pmDCA - LHR

1 stop10h 59mVirgin Atlantic

sáb. 8/24:50 pmLHR - DCA

1 stop11h 45mVirgin Atlantic

Deal found 6/10

$658

lun. 7/712:00 pmIAD - LHR

1 stop20h 10mDelta

lun. 7/218:10 pmLHR - IAD

1 stop20h 52mDelta

Deal found 6/9

$658

dom. 8/2410:05 pmIAD - LHR

1 stop18h 35mScandinavian Airlines

dom. 10/1910:20 amLHR - IAD

1 stop14h 39mScandinavian Airlines

Deal found 6/10

$659

jue. 7/316:00 amDCA - LHR

1 stop23h 00mAir Canada

mié. 8/139:30 amLHR - DCA

1 stop17h 18mAir Canada

Deal found 6/10

$660

vie. 8/223:00 pmDCA - LHR

1 stop10h 30mJetBlue

sáb. 9/68:25 amLHR - DCA

1 stop14h 35mJetBlue

Deal found 6/10

$661

vie. 7/2510:40 pmIAD - LHR

Nonstop7h 25mAmerican Airlines

vie. 8/12:25 pmLHR - IAD

Nonstop8h 05mAmerican Airlines

Deal found 6/10

$661

vie. 8/296:00 amDCA - LHR

1 stop9h 40mUnited Airlines

vie. 9/512:40 pmLHR - DCA

2 stops26h 48mUnited Airlines

Deal found 6/10

$662

sáb. 7/122:54 pmDCA - LHR

1 stop25h 46mIberia

lun. 7/219:45 amLHR - DCA

1 stop18h 26mIberia

Deal found 6/10

$663

mar. 8/57:06 pmDCA - LHR

1 stop9h 34mBritish Airways

mié. 8/204:20 pmLHR - DCA

1 stop11h 58mBritish Airways

Deal found 6/10

$669

sáb. 8/308:45 pmIAD - LHR

1 stop30h 10mSWISS

lun. 9/86:40 pmLHR - IAD

1 stop26h 35mSWISS

Deal found 6/10

$671

jue. 7/105:35 pmIAD - LHR

1 stop22h 20mBrussels Airlines

mié. 7/2311:05 amLHR - IAD

1 stop31h 25mBrussels Airlines

Deal found 6/12

$672

Last-minute flights from District of Columbia to Heathrow
Discover last-minute flight deals from District of Columbia to Heathrow. Data last updated junio 12, 2025 and is based on user searches.

mar. 6/1710:20 amIAD - LHR

2 stops29h 40mAir Canada

vie. 6/202:05 pmLHR - IAD

3 stops35h 59mAir Canada

Deal found 6/12

$970

mar. 6/175:50 pmIAD - LHR

Nonstop7h 30mDelta

mar. 8/1212:35 pmLHR - IAD

Nonstop8h 25mDelta

Deal found 6/10

$1,105

mar. 6/175:00 pmDCA - LHR

1 stop9h 50mIberia

mar. 8/125:00 pmLHR - DCA

1 stop11h 18mIberia

Deal found 6/10

$1,120

mar. 6/175:20 pmIAD - LHR

1 stop9h 40mAer Lingus

mar. 8/129:10 pmLHR - IAD

1 stop23h 40mAer Lingus

Deal found 6/11

$1,168

mar. 6/179:05 pmIAD - LHR

1 stop15h 40mRoyal Air Maroc

jue. 6/196:10 pmLHR - IAD

1 stop29h 55mRoyal Air Maroc

Deal found 6/11

$1,203

mié. 6/186:30 amDCA - LHR

1 stop9h 15mIcelandair

sáb. 8/238:15 amLHR - DCA

1 stop19h 44mIcelandair

Deal found 6/12

$1,016

vie. 6/2010:05 pmIAD - LHR

1 stop12h 55mScandinavian Airlines

sáb. 8/165:00 pmLHR - IAD

1 stop31h 59mScandinavian Airlines

Deal found 6/10

$1,063

vie. 6/2010:40 pmIAD - LHR

Nonstop7h 25mBritish Airways

sáb. 8/1611:00 amLHR - IAD

1 stop13h 49mBritish Airways

Deal found 6/11

$1,167

dom. 6/226:30 amDCA - LHR

1 stop9h 15mJetBlue

vie. 7/48:25 amLHR - DCA

1 stop16h 38mJetBlue

Deal found 6/12

$946

dom. 6/226:00 amDCA - LHR

3 stops21h 35mAir Canada

vie. 6/279:30 amLHR - DCA

3 stops31h 33mAir Canada

Deal found 6/11

$956

dom. 6/228:30 pmIAD - LHR

1 stop10h 25mIcelandair

mié. 7/99:25 pmLHR - IAD

1 stop29h 45mIcelandair

Deal found 6/9

$1,058

dom. 6/228:45 pmIAD - LHR

1 stop14h 40mSWISS

dom. 7/68:05 pmLHR - IAD

1 stop25h 10mSWISS

Deal found 6/10

$1,201

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 junio 12, 2025.

dom. 8/1711:15 pmIAD - LHR

2 stops14h 35mMultiple Airlines

Deal found 6/12

$301

vie. 9/511:15 pmIAD - LHR

1 stop16h 05mIcelandair

Deal found 6/10

$302

lun. 7/1410:20 pmIAD - LHR

1 stop14h 25mTAP AIR PORTUGAL

Deal found 6/10

$304

jue. 7/3110:30 amDCA - LHR

1 stop15h 00mJetBlue

Deal found 6/11

$319

mié. 7/169:40 amDCA - LHR

1 stop15h 50mMultiple Airlines

Deal found 6/10

$323

mié. 9/106:05 amDCA - LHR

2 stops22h 30mScandinavian Airlines

Deal found 6/10

$348

mar. 7/225:50 pmIAD - LHR

Nonstop7h 30mVirgin Atlantic

Deal found 6/12

$362

mar. 9/910:05 pmIAD - LHR

1 stop12h 55mScandinavian Airlines

Deal found 6/11

$366

mar. 7/223:45 pmDCA - LHR

2 stops23h 35mIcelandair

Deal found 6/10

$371

mar. 9/25:50 pmIAD - LHR

Nonstop7h 25mBritish Airways

Deal found 6/11

$371

lun. 7/214:30 pmDCA - LHR

2 stops23h 30mAir Canada

Deal found 6/11

$375

dom. 7/206:35 pmIAD - LHR

Nonstop7h 20mUnited Airlines

Deal found 6/10

$384

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

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

mié. 7/30

6:35 pm-6:55 am

Nonstop7h 20m

London Heathrow

lun. 8/4

12:10 pm-4:15 pm

1 stop33h 05m

$656

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

mar. 7/22

9:35 am-6:30 am

1 stop15h 55m

London Heathrow

lun. 7/28

8:05 pm-4:15 pm

1 stop25h 10m

$657

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

mié. 7/16

4:51 pm-8:50 am

1 stop10h 59m

London Heathrow

sáb. 8/2

4:50 pm-11:35 pm

1 stop11h 45m

$658

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

lun. 7/7

12:00 pm-1:10 pm

1 stop20h 10m

London Heathrow

lun. 7/21

8:10 pm-12:02 pm

1 stop20h 52m

$658

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

dom. 8/24

10:05 pm-9:40 pm

1 stop18h 35m

London Heathrow

dom. 10/19

10:20 am-7:59 pm

1 stop14h 39m

$659

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

jue. 11/20

11:00 am-7:10 am

1 stop15h 10m

London Heathrow

mar. 11/25

6:50 am-3:19 pm

2 stops13h 29m

$659

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

jue. 7/31

6:00 am-10:00 am

1 stop23h 00m

London Heathrow

mié. 8/13

9:30 am-9:48 pm

1 stop17h 18m

$660

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

vie. 11/7

2:00 pm-5:55 am

1 stop10h 55m

London Heathrow

sáb. 11/15

12:20 pm-10:47 pm

1 stop15h 27m

$661

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

vie. 7/25

10:40 pm-11:05 am

Nonstop7h 25m

London Heathrow

vie. 8/1

2:25 pm-5:30 pm

Nonstop8h 05m

$661

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

vie. 8/29

6:00 am-8:40 pm

1 stop9h 40m

London Heathrow

vie. 9/5

12:40 pm-10:28 am

2 stops26h 48m

$662

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 50 results

...

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 $1,108). 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?

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

The most flights from USDC to LHR are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

Rainfall in Heathrow 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

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

Read through reviews of airlines operating flights from District of Columbia to London, such as Delta, KLM and Austrian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,946 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,358 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Austrian Airlines

7.6

Good

802 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Finnair

7.6

Good

1,290 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

SWISS

7.5

Good

1,623 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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 $302. Users have also found prices from $304 and $319 on TAP AIR PORTUGAL 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: American Airlines (50%), Aer Lingus (50%), Finnair( 50%).
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 $1,844, our data indicates the cheapest price to be $374. The most popular route (Washington, D.C. Dulles Intl - London Heathrow), is priced around $426.
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 $1,108). 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

Hayes

Hounslow

Thornton Heath

Luton

Canterbury

Harrow

Dover

Stratford-upon-Avon

Gatwick

Orpington

Watford

Northampton

Croydon

Folkestone

Borehamwood

Broadway

Sutton

Aylesbury

Chelmsford

Brentwood

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for District of Columbia to Heathrow

John F Kennedy Intl to Heathrow flights

Newark to Heathrow flights

John F Kennedy Intl to Gatwick flights

Los Angeles to Heathrow flights

Boston to Heathrow flights

LaGuardia to Heathrow flights

Dulles Intl to Heathrow flights

John F Kennedy Intl to London City flights

Newark to Gatwick flights

Seattle to Heathrow flights

San Francisco to Heathrow flights

O'Hare Intl to Heathrow flights

Dallas/Fort Worth to Heathrow flights

Baltimore to Heathrow flights

Boston to Gatwick flights

LaGuardia to Gatwick flights

John F Kennedy Intl to Stansted flights

Newark to London City flights

Atlanta to Heathrow flights

Miami to Heathrow flights

Dulles Intl to Gatwick flights

Reagan-National to Heathrow flights

Dulles Intl to London City flights

Denver to Heathrow flights

John F Kennedy Intl to Luton flights

Boston to London City flights

Los Angeles to London City flights

Orlando to Heathrow flights

Baltimore to Gatwick flights

Hobby to Heathrow flights

Los Angeles to Gatwick flights

Philadelphia to Heathrow flights

Reagan-National to Gatwick flights

Dallas/Fort Worth to Gatwick flights

Seattle to Gatwick flights

Minneapolis to Heathrow flights

O'Hare Intl to Gatwick flights

San Francisco to Gatwick flights

Detroit to Heathrow flights

O'Hare Intl to London City flights

Newark to Stansted flights

George Bush Intcntl to Heathrow flights

Sky Harbor Intl to Heathrow flights

San Francisco to London City flights

Boston to Stansted flights

Portland to Heathrow flights

Seattle to London City flights

Newark to Luton flights

Charlotte to Heathrow flights

Austin to Heathrow flights

Other flights to Heathrow

London Heathrow Airport to Paris Orly Airport flights

London Heathrow Airport to Newcastle upon Tyne flights

London Heathrow Airport to Glasgow Intl Airport flights

London Heathrow Airport to Edinburgh flights

London Heathrow Airport to Manchester flights

London Heathrow Airport to Toulouse flights

London Heathrow Airport to Inverness flights

London Heathrow Airport to Barcelona-El Prat Airport flights

London Heathrow Airport to Newcastle upon Tyne flights

London Heathrow Airport to Luxembourg flights

London Heathrow Airport to Amsterdam flights

London Heathrow Airport to Paris Charles de Gaulle Airport flights

London Heathrow Airport to Prague flights

London Heathrow Airport to Aberdeen flights

London Heathrow Airport to Duesseldorf Intl Airport flights

London Heathrow Airport to Brussels Bruxelles-National Airport flights

London Heathrow Airport to Venice Marco Polo Airport flights

London Heathrow Airport to Hamburg flights

Top 10 airlines flying from District of Columbia to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
PLAY	Cheapest$379	Average$523	FlexibilityNo cancel fee	On-timeN/A
Scandinavian Airlines	Cheapest$394	Average$597	FlexibilityNo cancel fee	On-time77%
Delta	Cheapest$421	Average$847	FlexibilityNo cancel fee	On-timeN/A
Icelandair	Cheapest$435	Average$572	FlexibilityNo cancel fee	On-time76%
TAP AIR PORTUGAL	Cheapest$486	Average$758	FlexibilityNo cancel fee	On-timeN/A
Air Canada	Cheapest$549	Average$750	FlexibilityNo cancel fee	On-time67%
Lufthansa	Cheapest$552	Average$868	FlexibilityNo cancel fee	On-time76%
Aer Lingus	Cheapest$555	Average$758	FlexibilityNo cancel fee	On-timeN/A
Iberia	Cheapest$562	Average$719	FlexibilityNo cancel fee	On-time77%
SWISS	Cheapest$572	Average$789	FlexibilityNo cancel fee	On-time79%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$298+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from District of Columbia to Heathrow with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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 junio 12, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find 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 junio 12, 2025.

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 junio 12, 2025.

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.

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

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?

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 junio 12, 2025.

Weekly flight availability from District of Columbia to London Heathrow Airport

Rainfall in Heathrow by month

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

Temperature in Heathrow by month

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

Reviews of airlines servicing Heathrow

Read through reviews of airlines operating flights from District of Columbia to London, such as Delta, KLM and Austrian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

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?

Traveling to a place near District of Columbia?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for District of Columbia to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from District of Columbia to Heathrow

100% Free

Book with Flexibility

Travel Smart

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 junio 12, 2025.