£344 Cheap Flights from London (LHR) to Washington (DCA)

You can find cheap one-way flights from £344 and cheap return flights £472 LHR to DCA with Expedia. Return flights often range between £431 and £2021. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when LHR to DCA ticket fares go up or down.

The cheapest months to fly from LHR to DCA are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.

Enter LHR to DCA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.

To find a cheap flight from London (LHR) to Washington, DC (DCA), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.

The earliest flight from London Heathrow (LHR) to Washington, DC (DCA-Ronald Reagan Washington National) typically departs around 6:00 AM. This seasonal service is active in May and is operated by airlines such as Air Baltic, Swiss International Air Lines, and Air Canada. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

There are no nonstop flights from London Heathrow (LHR) to Washington, DC (DCA-Ronald Reagan Washington National). The distance between these two airports is approximately 5,882 kilometers. If you're flying with one stop, your journey will typically take around 12 hours 48 minutes. Flights with two or more stops usually take longer, averaging about 17 hours 18 minutes. Keep in mind that actual travel times can vary depending on your specific routing, layover duration, and factors like wind patterns.

Select the "Business class" and "First class" filters when looking for London (LHR) to Washington, DC (DCA) flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.

It's easy to earn miles on a London (LHR-Heathrow) to Washington, DC (DCA-Ronald Reagan Washington National) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

If you're planning to travel to Washington from Heathrow (LHR), you can fly directly into Ronald Reagan Washington National Airport (DCA). Some flights may connect through major hubs like Schiphol (AMS), Zürich (ZRH), or Roissy-Charles de Gaulle (CDG) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from London (LHR-Heathrow) to Washington, DC (DCA-Ronald Reagan Washington National) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a London (LHR-Heathrow) to Washington, DC (DCA-Ronald Reagan Washington National) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your London (LHR) to Washington, DC (DCA) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.