Cheap flights from Washington, D.C. to the United Kingdom from £144
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to the United Kingdom departing on 17/7. 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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How to get the cheapest flight ticket from Washington, D.C. to United Kingdom
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
What is the cheapest month to fly to United Kingdom?
The cheapest month to fly to United Kingdom from Washington, D.C. is in January. Flight prices, which tend to average around £478, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of January, then departing from Washington, D.C. during the month October is also very affordable. Most momondo users find prices during this month for around £486.
What is the cheapest day to depart on your flight to United Kingdom?
The cheapest day to depart from Washington, D.C. to United Kingdom is on a Tuesday. Travellers who choose to depart for United Kingdom on a Tuesday will often find tickets for as low as £554. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. to United Kingdom for around £659.
What is the cheapest time of day to depart on your flight to United Kingdom?
The cheapest time of day to fly to United Kingdom is in the evening when flights can be purchased for as low as £582. Try not to purchase tickets in the afternoon because they tend to be around £617. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest Washington, D.C. to United Kingdom flight route?
Fly from Washington, D.C. Dulles Intl to London Heathrow for the best Washington, D.C. - United Kingdom flight prices
How far in advance should I book a flight to United Kingdom?
You are more likely to see cheaper flights to United Kingdom from Washington, D.C. when booking 15 weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £573 when searching 15 weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Washington, D.C. for as low as £517 on momondo.
What cabin class options are available on Washington, D.C. to United Kingdom flights?
There are 4 cabin classes available to choose from on Washington, D.C. to United Kingdom 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 Washington, D.C. to United Kingdom?
Icelandair, TAP AIR PORTUGAL, and PLAY are the most popular carriers operating from Washington, D.C. to United Kingdom
Which airlines fly to United Kingdom?
British Airways, Virgin Atlantic and Icelandair are the top three most popular airlines that fly to United Kingdom from Washington, D.C. according to our data. British Airways is the first choice among our users, with 43% of people opting to fly with this airline when travelling to United Kingdom. Keep in mind that there are 11 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.
How many flights depart from Washington, D.C. to United Kingdom on average per day?
The number of flights available between Washington, D.C. and United Kingdom is 33 per day as of June 2025. The most frequent departure time is 22:00, with 73% of daily flights leaving in the evening.
How many flights depart from Washington, D.C. to United Kingdom on average per week?
The number of flights available between Washington, D.C. and United Kingdom is 233 per week as of June 2025. The most frequent departure day is Tue, with 15% of weekly flights leaving on this day.
Cheap Washington, D.C. to United Kingdom flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to United Kingdom
Best price found | £144 |
|---|---|
Fastest flight time | 7h 10m |
Direct flights | Every day |
Airports in United Kingdom | 4 airports |
When did momondo last update prices for flights from Washington, D.C. to United Kingdom?
Prices for flights from Washington, D.C. to United Kingdom refresh daily.
How many operators does momondo search for flights from Washington, D.C. to United Kingdom?
There are 11 operators available for flights from Washington, D.C. to United Kingdom as of June 2025.
How old do you have to be to fly from Washington, D.C. to United Kingdom?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The travel and health documents required for your trip to United Kingdom can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Washington, D.C. to United Kingdom?
Based on momondo bookings for flights between Washington, D.C. and United Kingdom, the leading plane model is Boeing 777, making up 35.89% of the total bookings. Other popular models include Airbus A380-800 with 19.25%, Boeing 787-8 Dreamliner with 9.84%, and Airbus A380 with 6.65%.
Best airlines flying from Washington, D.C. to United Kingdom
Compare and see reviews for airlines that fly from Washington, D.C. to United Kingdom with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £305 | Free Cancellation | Rating 7.0 102 reviews | |||
| PriceFrom £311 | Free Cancellation | Rating 7.0 502 reviews | |||
| PriceFrom £414 | Free Cancellation | Rating 7.0 2,780 reviews | |||
| PriceFrom £424 | Free Cancellation | Rating 7.5 1,466 reviews | |||
| PriceFrom £425 | Free Cancellation | Rating 6.6 7,031 reviews | |||
| PriceFrom £433 | Free Cancellation | Rating 7.4 653 reviews | |||
| PriceFrom £449 | Free Cancellation | Rating 7.1 1,123 reviews | |||
| PriceFrom £459 | Free Cancellation | Rating 7.8 1,365 reviews | |||
| PriceFrom £475 | Free Cancellation | Rating 6.7 7,159 reviews | |||
| PriceFrom £493 | Free Cancellation | Rating 7.2 10,000 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Washington, D.C. to United Kingdom?
Finding the right flight to United Kingdom from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to United Kingdom quick and easy, saving you time and money.
Can I find flights from Washington, D.C. to United Kingdom with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to United Kingdom from Washington, D.C. with this policy.
How can momondo help me find flights from Washington, D.C. to United Kingdom?
Once you have performed a search for Washington, D.C. to United Kingdom flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Washington, D.C. to United Kingdom right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Washington, D.C. to United Kingdom flights. All you need is a valid email address and we will do the rest; it is that quick and easy.