£401 Find Cheap Flights from London Heathrow Airport to District of Columbia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to District of Columbia departing on 4/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to District of Columbia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to District of Columbia.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to District of Columbia.
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Flight Deals

Book Cheap Heathrow to District of Columbia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to District of Columbia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to District of Columbia

Wed, 4 Nov - Sun, 8 Nov
TAP AIR PORTUGAL Logo
06:00 - 20:35
LHR
-
IAD
19h 35m
1 stop
TAP AIR PORTUGAL Logo
22:30 - 17:30
IAD
-
LHR
14h 00m
1 stop
£469TAP AIR PORTUGAL
Fri, 31 Jul - Mon, 17 Aug
British Airways Logo
14:00 - 17:25
LHR
-
IAD
8h 25mdirect
British Airways Logo
17:45 - 06:20
IAD
-
LHR
7h 35mdirect
£471British Airways
Wed, 2 Sep - Wed, 9 Sep
Icelandair Logo
13:05 - 19:20
LHR
-
IAD
11h 15m
1 stop
Icelandair Logo
20:30 - 11:55
IAD
-
LHR
10h 25m
1 stop
£473Icelandair
Thu, 27 Aug - Wed, 9 Sep
Icelandair Logo
13:05 - 19:20
LHR
-
IAD
11h 15m
1 stop
Icelandair Logo
20:30 - 11:55
IAD
-
LHR
10h 25m
1 stop
£474Icelandair
Sat, 3 Oct - Wed, 14 Oct
Icelandair Logo
13:05 - 19:20
LHR
-
IAD
11h 15m
1 stop
Icelandair Logo
23:20 - 20:20
IAD
-
LHR
16h 00m
1 stop
£475Icelandair
Sat, 1 Aug - Tue, 11 Aug
United Airlines Logo
11:05 - 21:10
LHR
-
DCA
15h 05m
1 stop
United Airlines Logo
17:55 - 09:20
DCA
-
LHR
10h 25m
1 stop
£485United Airlines
Tue, 21 Jul - Tue, 1 Sep
Virgin Atlantic Logo
13:25 - 22:48
LHR
-
DCA
14h 23m
1 stop
Virgin Atlantic Logo
11:00 - 06:45
DCA
-
LHR
14h 45m
1 stop
£503Virgin Atlantic
Wed, 5 Aug - Tue, 11 Aug
Virgin Atlantic Logo
16:20 - 22:59
LHR
-
DCA
11h 39m
1 stop
Virgin Atlantic Logo
06:02 - 20:10
DCA
-
LHR
9h 08m
1 stop
£505Virgin Atlantic
Sat, 1 Aug - Sun, 16 Aug
United Airlines Logo
08:00 - 20:09
LHR
-
DCA
17h 09m
1 stop
United Airlines Logo
13:01 - 07:15
DCA
-
LHR
13h 14m
1 stop
£508United Airlines
Wed, 19 Aug - Wed, 26 Aug
American Airlines Logo
13:15 - 12:44
LHR
-
DCA
28h 29m
1 stop
American Airlines Logo
17:35 - 07:50
DCA
-
LHR
9h 15m
1 stop
£514American Airlines
Booking Insights

KAYAK's insights & trends for Heathrow to District of Columbia flights

Get data-powered insights and trends into flights from Heathrow to District of Columbia to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from London Heathrow Airport to District of Columbia?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London Heathrow Airport to District of Columbia departing in November.

What is the cheapest London Heathrow Airport to District of Columbia flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to District of Columbia from London Heathrow Airport found in the last 72 hours was to Baltimore, at £463 return. The most popular route is from London Heathrow Airport (LHR) to Washington, D.C. Dulles Intl Airport (IAD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £487.

What is the cheapest time of day to fly to District of Columbia?

The average price for all round-trip flights from London Heathrow Airport to District of Columbia depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to District of Columbia is generally in the afternoon, when retur flights cost £563 on average. Morning departures are around 2% more expensive than evening flights, on average. The most expensive time of day to fly to District of Columbia is generally in the morning, which is peak travel time and where the average cost of a ticket is £590.

Can I save money by flying with a stopover from London Heathrow Airport to District of Columbia?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 2 stops stopover the cheapest option at £445 on average.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to District of Columbia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to District of Columbia is January, when tickets cost £265 (return) on average. On the other hand, the most expensive months are April and March, when the average cost of return tickets is £1,126 and £862 respectively.

What’s the cheapest day of the week to fly from London Heathrow Airport to District of Columbia?

The average price of all round-trip flights from London Heathrow Airport to District of Columbia clicked on KAYAK for each day over the last 12 months.

For London Heathrow Airport to District of Columbia, Wednesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from District of Columbia back to London Heathrow Airport, the best deals are generally found on Tuesday, with Friday being the most expensive.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to District of Columbia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from London Heathrow Airport to District of Columbia, you should book around 6 weeks before departure, which saves you about 35% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know - Cheap tickets from London Heathrow Airport to District of Columbia

Low seasonFebruary
Cheapest flight£401
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly (18% more expensive on average)
Flight from London Heathrow Airport to Washington Dulles Airport

FAQs - booking District of Columbia flights

  • How does KAYAK find such low prices on flights from London Heathrow Airport to District of Columbia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Heathrow Airport to District of Columbia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to District of Columbia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London Heathrow Airport to District of Columbia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to District of Columbia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from London Heathrow Airport to District of Columbia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to District of Columbia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from London Heathrow Airport to District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines flying from Heathrow to District of Columbia

 
See real verified KAYAK customer reviews for airlines flying from London to District of Columbia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Heathrow to District of Columbia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
Austrian AirlinesOverall score based on 915 reviews
6.8Entertainment
7.3Comfort
7.6Boarding
6.8Food
8.1Crew
Airline reviews

It was a great experience. The aircraft is a bit dated but other than that it was great.

8.0 ExcellentLeida, May 2026
EWR - VIE
Read more Austrian Airlines reviews

It was a great experience. The aircraft is a bit dated but other than that it was great.

Last few years I didn't not have great experience with United Airlines.

Booked economy. Seat felt like it was a bit more roomy than my last trans Atlantic flights. I had a nice person sitting next to me. Everything was as good as it could be considering you are 35,000 feet up in the air and in a metal container. Beers, wine, food were all readily available. Plenty of movies and shows to watch. Friendly flight staff

Short flight. Bare bones and kinda seeming like an older plane. But got me there on time and that's what counts. Perfectly fine flight all the way from start to finish.

We were delayed three hours from Montenegro to Vienna on our outbound flight and then rebooked an extra leg on our trip to the US. Our bags, which Austrian made us check in in Montenegro even though the flight was barely half full, didn't find us for ten days. Then, when we asked for compensation for the delay we were given the runaround that the flight originated outside of the EU. Next time we fly Turkish Air.

My Austrian Air flight from Montenegro to Vienna was delayed by three hours because their plane de-icer was broken and they had to wait for the sun to come up before the ice could melt. This meant we missed our United flight altogether. So I can't speak about United, but I was not impressed by Austrian Air. They made us check in two carry on bags for a 60% full flight, and the bags didn't find us in the US for ten days. The re-routing they arranged included an extra leg, a midnight taxi ride across New Jersey and New York, and a five hour sleep in a hotel. Not impressed.

Most of the crew members were rude, flight arrived late and we missed our connecting flight, they damaged my friends suitcase so badly that two wheels had been destroyed.

Excellent flight. The crew was exceptionally attentive and organized. Attention to details is unmatched.

Great! They got my vegetarian meal right, flight was comfortable, they helped store my heavy luggage. Pleasant crew and flight staff.

I did wish they would give us the entire little bottle Bailey's instead of just have 1/2 bottle at a time

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

Very friendly and helpful staff on board and United was excellent when I missed my onward flight due to the delay in London. Very well organised meant much less stress

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

My bags were misplaced!!! Im in a foreign country with no bags

First time flying with UA and it was a great experience. Thank you

I liked that it was on time, however, the food was not good.

Offered to check carry on to final destination. This is the most absurd thing in the world. I'm carrying on because I need what is in the carry-on. I'm okay with picking up at next stop but then I will be on much larger plane that can accommodate it. Also, if there is ever a change to your flight. Go to the airport and have the people there fix your ticket. Don't do it over the phone or online with United they screwed us up and ended up with flights for our last leg that took off before our first leg.

Seating and zone. The minor I went with didn’t even seat close to me

My seat 3G did not go down fully and the buttons were not working properly

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

Bulkhead seats should not be an extra charge. They are extremely uncomfortable. And we missed our connecting flight due to slow luggage retreaval.

Lufthansa flight LH04414 from Munich to Washington DC, was fine. Efficient and safe!

Bumpy ride, not Lufthansa‘s fault. Crew managed a situation over a back rest to far down well. It was two iles behind me. The person putting the seat down, against the other person’s knees, was quite rude and belligerent and needed to be told in a no nonsense matter to stopp. Male flight attendant did good job.

Had a few open seats and could use it for a great rest ful journey

It was very good. Service was friendly and efficient, and food was good.

Paid for exit row at the back of the plane. Window seat with lots of leg space. Food was inedible (as usual). Brought my own.

We left 1.5 hours late therefore missing my connection. The airline didn’t give vouchers.

Food could have something without dairy, I couldn't eat anything. Tv for both seats was malfunctioning. They have one bottle of ginger ale for entire plane.... and I paid extra for these seats...very disappointed

We took two long flights with Lufthansa, both were delayed making us miss our connecting flights. Lufthansa took care of the first one. The second was a switch to United and figuring out how to rebook was not a pleasant experience.

Long line with check in at the DIA British Airway counter.

The flights were on time. Cabin crew were nice. The food was terrible! Checking in was not easy using my phone.

Crew were fantastic and the aircraft was extremely comfortable, but outdated. Headphone jacks were worn out and sound normally only came out of one ear unless positioned just right.

A shout-out to the flight attendent, Lauren, who was the main person assisting me. She was amazing - perfect balance of bright, cheerful, engaging, yet formal

OK, except for a cabin attendant's lack of attention.

efficient. on time. cabin crew were very professional and very nice to deal with. would definately fly BA again.

It was great overall. A few slight improvements could be made on the onboarding process at the Gates with announcements and clarity of communications (both at the gate and in flight). The movies in the entertainment options could be improved for bollywood, hollywood.

I alrady responded to this request, and expllaned at length that this was the worst flying experience in my 77 years. I will NEVER fly BA again.

Airbus A350 is poorly designed for wheelchair users and reduced mobility passengers. The angle of the pods makes it awkward to transfer. I was able to but I have ab stability. It could be a real challenge for people with more severe mobility impairments. You'd think Airbus would have come up with a solution for this or thought more about us disabled folks more when designing this aircraft.

The crew has always been great on BA. They are very friendly and accommodating. I like that they have vegetarian options already in the menu. And the free wine is a nice perk.) I noticed (both directions of my trip) minor upgrades/ replacements needed on the plane itself (touch screen didn't work with touch; bathroom light didn't go on). However, this is one of my favorite airlines.

Everything you need to know for your flight from Heathrow to District of Columbia

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