Cheap flights from District of Columbia to London from £161
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to London departing on 11/8. 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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Cheap return flights
These are some of the best return flight deals from District of Columbia to London that have been recently found on momondo from popular airlines, departing in the coming months.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from District of Columbia to London.
Cheap last-minute flights
Planning a quick getaway from District of Columbia to London? These are the last-minute flight deals available now.
Cheap direct flights
If you prefer a non-stop journey, check out our latest direct flight deals to London, so you can enjoy a seamless trip without stopovers.
TAP AIR PORTUGAL flights from District of Columbia to London Heathrow Airport
Our best TAP AIR PORTUGAL deals on District of Columbia to London Heathrow Airport flight tickets
TAP AIR PORTUGAL![TAP AIR PORTUGAL]()
16 Oct![TAP AIR PORTUGAL]()
21 Oct
IAD22:20Washington, D.C. Dulles Intl
15h 30m
1 stop
LHR18:50London Heathrow
LHR18:45London Heathrow
25h 35m
1 stop
IAD15:20Washington, D.C. Dulles Intl
TAP AIR PORTUGAL![TAP AIR PORTUGAL]()
22 Sept![TAP AIR PORTUGAL]()
25 Sept
IAD22:20Washington, D.C. Dulles Intl
15h 30m
1 stop
LHR18:50London Heathrow
LHR08:00London Heathrow
12h 20m
1 stop
IAD15:20Washington, D.C. Dulles Intl
Icelandair flights from District of Columbia to London Heathrow Airport
Our best Icelandair deals on District of Columbia to London Heathrow Airport flight tickets
Icelandair![Icelandair]()
7 Oct![Icelandair]()
13 Oct
IAD20:30Washington, D.C. Dulles Intl
10h 25m
1 stop
LHR11:55London Heathrow
LHR21:25London Heathrow
26h 55m
1 stop
IAD19:20Washington, D.C. Dulles Intl
Icelandair![Icelandair]()
1 Oct![Icelandair]()
29 Oct
IAD20:30Washington, D.C. Dulles Intl
10h 25m
1 stop
LHR11:55London Heathrow
LHR12:15London Heathrow
11h 05m
1 stop
IAD19:20Washington, D.C. Dulles Intl
See travel insights to London from
How to get the cheapest flight ticket from District of Columbia to London Heathrow Airport
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
Prices
Airlines
Other information
What is the cheapest month to fly to London Heathrow Airport?
In general, October is the cheapest month to fly from District of Columbia to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £503. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from District of Columbia averaging around £513.
What is the cheapest day to depart on your flight to London Heathrow Airport?
On average, the least expensive day to fly to London Heathrow Airport from District of Columbia is on a Monday. momondo users have found tickets for Monday departures for as low as £554. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £660.
What is the cheapest time of day to depart on your flight to London Heathrow Airport?
According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from District of Columbia to London Heathrow Airport in the evening for as low as £618. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £636 on average. Flights to London Heathrow Airport from District of Columbia in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.
What is the cheapest District of Columbia to London Heathrow flight route?
Fly from Washington, D.C. Dulles Intl to London Heathrow for the best District of Columbia - London Heathrow flight prices
How far in advance should I book a flight to London Heathrow Airport?
You are more likely to see cheaper flights to London Heathrow Airport from District of Columbia when booking 14 weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £582 when searching 14 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from District of Columbia for as low as £547 on momondo.
What cabin class options are available on District of Columbia to London Heathrow flights?
There are 4 cabin classes available to choose from on District of Columbia to London Heathrow 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 District of Columbia to London Heathrow?
TAP AIR PORTUGAL, Icelandair, and JetBlue are the most popular carriers operating from District of Columbia to London Heathrow
Which airlines fly to London Heathrow Airport?
British Airways, Virgin Atlantic and Iberia are the top three most popular airlines that fly to London Heathrow Airport from District of Columbia according to our data. British Airways is the first choice among our users, with 41% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 8 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from District of Columbia to London Heathrow Airport on average per day?
27 flights are operational daily from District of Columbia to London Heathrow Airport as of May 2025. The most popular departure time for this route is 22:00, with 71% of flights per day taking off in the evening.
How many flights depart from District of Columbia to London Heathrow Airport on average per week?
As of May 2025, there are 191 flights per week flying from District of Columbia to London Heathrow Airport. The most common day of the week flights depart is Fri, with 16% of flights taking off on this day.
Cheap District of Columbia to London Heathrow Airport flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from District of Columbia to London Heathrow Airport
When did momondo last update prices for flights from District of Columbia to London Heathrow Airport?
Prices for flights from District of Columbia to London Heathrow Airport refresh daily.
How many operators does momondo search for flights from District of Columbia to London Heathrow Airport?
There are 8 operators available for flights from District of Columbia to London Heathrow Airport as of May 2025.
How old do you have to be to fly from District of Columbia to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from District of Columbia to London Heathrow Airport?
Based on momondo bookings for flights between District of Columbia and London Heathrow Airport, the leading plane model is Boeing 777, making up 37.03% of the total bookings. Other popular models include Airbus A380-800 with 18.23%, Boeing 787-8 Dreamliner with 7.92%, and Airbus A330-900neo with 7.84%.
Best airlines flying from District of Columbia to London Heathrow Airport
Compare and see reviews for airlines that fly from District of Columbia to London Heathrow Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £361 | Free Cancellation | Rating 7.0 488 reviews | |||
| PriceFrom £419 | Free Cancellation | Rating 7.0 2,706 reviews | |||
| PriceFrom £430 | Free Cancellation | Rating 7.4 1,448 reviews | |||
| PriceFrom £430 | Free Cancellation | Rating 6.6 6,863 reviews | |||
| PriceFrom £439 | Free Cancellation | Rating 7.4 643 reviews | |||
| PriceFrom £464 | Free Cancellation | Rating 7.8 1,337 reviews | |||
| PriceFrom £498 | Free Cancellation | Rating 6.7 7,055 reviews | |||
| PriceFrom £499 | Free Cancellation | Rating 7.4 8,702 reviews |
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Why use momondo?
Why should I use momondo to find a flight deal from District of Columbia to London?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from District of Columbia.
Can I find flights from District of Columbia to London with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for District of Columbia to London flights to just show those with flexible booking policies.
How can momondo help me find flights from District of Columbia to London?
momondo helps you find the best flight between District of Columbia and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from District of Columbia to London right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of District of Columbia to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.
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