Cheap flights from the United Kingdom to District of Columbia from $362

In general, September is the cheapest month to fly from United Kingdom to District of Columbia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $664. If you don’t want to visit District of Columbia in September, then you should wait until February to fly from United Kingdom, when ticket prices are also cheap, with an average price of $665.

The cheapest day to depart on your flight to District of Columbia is on a Thursday when prices can be found for as low as $753. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from United Kingdom because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $858.

Flying to District of Columbia from United Kingdom at noon is the least expensive time of day to depart. momondo users have found prices as low as $792 when looking at flights departing at noon. Flights to District of Columbia are more costly in the morning, with an average ticket price of $814. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from London Heathrow to Washington, D.C. Dulles Intl for the best United Kingdom - District of Columbia flight prices

You are more likely to see cheaper flights to District of Columbia from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to District of Columbia for around $729 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to District of Columbia from United Kingdom for as low as $655 on momondo.

JetBlue, Lufthansa, and SWISS are the most popular carriers operating from United Kingdom to District of Columbia

British Airways, Aer Lingus and United Airlines are the top three most popular airlines that fly to District of Columbia from United Kingdom according to our data. British Airways is the first choice among our users, with 47% of people opting to fly with this airline when traveling to District of Columbia. Keep in mind that there are 12 different airlines that fly to District of Columbia on a routine basis, so you have a few additional options to choose from.

The number of flights available between United Kingdom and District of Columbia is 28 per day as of May 2026. The most frequent departure time is 12:00PM, with 100% of daily flights leaving in the afternoon.

As of May 2026, 197 flights take off from United Kingdom and land in District of Columbia each week. The most common flight departure day for this route is Fri, with 16% of weekly flights taking off on this day.