Cheap flights from London Heathrow Airport to District of Columbia from $373
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to District of Columbia departing on 9/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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TAP AIR PORTUGAL flights from London Heathrow Airport to District of Columbia
Our best TAP AIR PORTUGAL deals on London Heathrow Airport to District of Columbia flight tickets
TAP AIR PORTUGAL![TAP AIR PORTUGAL]()
Sep 17![TAP AIR PORTUGAL]()
Oct 10
LHR6:45 pmLondon Heathrow
25h 35m
1 stop
IAD3:20 pmWashington, D.C. Dulles Intl
IAD5:00 pmWashington, D.C. Dulles Intl
19h 45m
1 stop
LHR5:45 pmLondon Heathrow
TAP AIR PORTUGAL![TAP AIR PORTUGAL]()
Sep 18![TAP AIR PORTUGAL]()
Oct 5
LHR6:00 amLondon Heathrow
19h 50m
1 stop
IAD8:50 pmWashington, D.C. Dulles Intl
IAD5:45 pmWashington, D.C. Dulles Intl
19h 00m
1 stop
LHR5:45 pmLondon Heathrow
Icelandair flights from London Heathrow Airport to District of Columbia
Our best Icelandair deals on London Heathrow Airport to District of Columbia flight tickets
Icelandair![Icelandair]()
Nov 17![Icelandair]()
Nov 24
LHR12:15 pmLondon Heathrow
11h 05m
1 stop
IAD6:20 pmWashington, D.C. Dulles Intl
IAD7:40 pmWashington, D.C. Dulles Intl
18h 50m
1 stop
LHR7:30 pmLondon Heathrow
Icelandair![Icelandair]()
Oct 30![Icelandair]()
Nov 3
LHR8:40 pmLondon Heathrow
26h 40m
1 stop
IAD7:20 pmWashington, D.C. Dulles Intl
IAD7:40 pmWashington, D.C. Dulles Intl
10h 10m
1 stop
LHR10:50 amLondon Heathrow
See travel insights to District of Columbia from
How to get the cheapest flight ticket from London Heathrow Airport to District of Columbia
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
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What is the cheapest month to fly to District of Columbia?
In general, February is the cheapest month to fly from London Heathrow Airport to District of Columbia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $698. If you don’t want to visit District of Columbia in February, then you should wait until January to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of $719.
What is the cheapest day to depart on your flight to District of Columbia?
The cheapest day to depart on your flight to District of Columbia is on a Tuesday when prices can be found for as low as $827. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $970.
What is the cheapest time of day to depart on your flight to District of Columbia?
Flying to District of Columbia from London Heathrow Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as $749 when looking at flights departing in the evening. Flights to District of Columbia are more costly in the afternoon, with an average ticket price of $893. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest London Heathrow to District of Columbia flight route?
Fly from London Heathrow to Washington, D.C. Dulles Intl for the best London Heathrow - District of Columbia flight prices
How far in advance should I book a flight to District of Columbia?
You are more likely to see cheaper flights to District of Columbia from London Heathrow Airport when booking 14 weeks ahead of your departure date. In general, you can expect to find flights to District of Columbia for around $829 when searching 14 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to District of Columbia from London Heathrow Airport for as low as $766 on momondo.
What cabin class options are available on London Heathrow to District of Columbia flights?
There are 4 cabin classes available to choose from on London Heathrow to District of Columbia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from London Heathrow to District of Columbia?
TAP AIR PORTUGAL, Aer Lingus, and Icelandair are the most popular carriers operating from London Heathrow to District of Columbia
What airlines fly to District of Columbia?
British Airways, United Airlines and Virgin Atlantic are the top three most popular airlines that fly to District of Columbia from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 57% of people opting to fly with this airline when traveling to District of Columbia. Keep in mind that there are 13 different airlines that fly to District of Columbia on a routine basis, so you have a few additional options to choose from.
How many flights depart from London Heathrow Airport to District of Columbia on average per day?
As of June 2025, there are 26 flights per day flying from London Heathrow Airport to District of Columbia. The most common time of day flights depart is 12:00PM, with 100% of flights taking off in the afternoon.
How many flights depart from London Heathrow Airport to District of Columbia on average per week?
As of June 2025, 186 flights take off from London Heathrow Airport and land in District of Columbia each week. The most common flight departure day for this route is Mon, with 15% of weekly flights taking off on this day.
Cheap London Heathrow Airport to District of Columbia flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to District of Columbia
Best Price Found | $373 |
|---|---|
Fastest flight time | 8h 05m |
Direct flights | Every day |
Airports in District of Columbia | 2 airports |
When did momondo last update prices for flights from London Heathrow Airport to District of Columbia?
Prices for flights from London Heathrow Airport to District of Columbia refresh daily.
How many operators does momondo search for flights from London Heathrow Airport to District of Columbia?
There are 12 operators available for flights from London Heathrow Airport to District of Columbia as of June 2025.
How old do you have to be to fly from London Heathrow Airport to District of Columbia?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to District of Columbia.
What documentation or ID do you need to fly to District of Columbia?
The required travel and health documents for your District of Columbia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at District of Columbia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from London Heathrow Airport to District of Columbia?
Based on momondo bookings for flights between London Heathrow Airport and District of Columbia, the leading plane model is Boeing 777, making up 27.82% of the total bookings. Other popular models include Airbus A380-800 with 15.96%, Airbus A330-900neo with 9.81%, and Boeing 777-300ER with 9.58%.
Best airlines flying from London Heathrow Airport to District of Columbia
Compare and see reviews for airlines that fly from London Heathrow Airport to District of Columbia with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $390 | Free Cancellation | Rating 7.3 1,388 reviews | |||
| PriceFrom $392 | Free Cancellation | Rating 7.0 102 reviews | |||
| PriceFrom $431 | Free Cancellation | Rating 7.6 804 reviews | |||
| PriceFrom $529 | Free Cancellation | Rating 7.0 499 reviews | |||
| PriceFrom $564 | Free Cancellation | Rating 7.1 1,890 reviews | |||
| PriceFrom $595 | Free Cancellation | Rating 6.6 7,019 reviews | |||
| PriceFrom $619 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $652 | Free Cancellation | Rating 7.1 1,118 reviews | |||
| PriceFrom $652 | Free Cancellation | Rating 8.0 7,963 reviews | |||
| PriceFrom $682 | Free Cancellation | Rating 7.4 8,801 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from London to District of Columbia?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to District of Columbia for you.
Can I find flights from London to District of Columbia with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to District of Columbia from London with this policy.
How can momondo help me find flights from London to District of Columbia?
momondo provides multiple filters to help you find the best flight to District of Columbia from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from London to District of Columbia right now. Can momondo alert me if prices change?
Yes. momondo can track prices for London to District of Columbia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.
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