$174+ Cheap flights from Washington, D.C. (WAS) to London (LON)

Flying on PLAY is currently your cheapest option to London, with prices starting at $497. Additional round-trip tickets that might be worth considering are offered by Icelandair and Scandinavian Airlines, with the lowest prices starting at $505 and $549, respectively. PLAY is 32% cheaper than the average price of flights available within the next 90 days to this destination.

$194 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on PLAY and SWISS, with prices starting from $216 and $234, respectively.

When deciding which route to take from Washington, D.C. to London consider Washington, D.C. Dulles Intl - London Heathrow, Baltimore/Washington - London Heathrow or Washington, D.C. Reagan-National - London Heathrow as they are the most popular.

The top 3 most reliable airlines when flying from Washington, D.C. to London are Air France (83%), Virgin Atlantic (81%) and Singapore Airlines (81%).

While on average a flight from Washington, D.C. to London is generally $2,068, our data shows the cheapest flight currently is $379. When looking at the most popular route, (Washington, D.C. Dulles Intl - London Heathrow), you can expect to pay $359 for that flight.

Of the flights from Washington, D.C. to London that have layovers, most of them stop in Reykjavik. Dublin follows Reykjavik in terms of the most common layover location on Washington, D.C. to London flights.

The majority of Reykjavik visitors spend their time at Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool. Those on a layover in Reykjavik interested in visiting Hallgrímskirkja, Harpa, or Laugardalslaug Geothermal Pool can do so by traveling 23.2 mi, 23.3 mi, and 24.6 mi, respectively from Reykjavik Keflavik Intl. Travelers can book a car rental at Reykjavik Keflavik Intl for about $48 per day to make their sightseeing more efficient.

Molly Malone Statue, St. Patrick's Cathedral, and Dublin Castle are the most popular attractions in Dublin if you're in need of something to do during your layover. Travelers on a layover in Dublin can visit Molly Malone Statue, St. Patrick's Cathedral, and Dublin Castle, by traveling 5.8 mi, 6.1 mi, and 5.8 mi, respectively after landing at Dublin. Travelers can book a car rental at Dublin for about $17 per day to make their sightseeing more efficient.

Flights departing from Washington, D.C. and landing in London layover in Boston least frequently. New York sees the next fewest layovers on Washington, D.C. to London flights.

Yes. In addition to deals on Washington, D.C. to London flights, Cheapflights offers vacation packages that include both flights and hotel.

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to London.

Yes. Cheapflights offers flight deals from Washington, D.C. to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to London (average of $661). Flying from Washington, D.C. to London in June is currently the most expensive (average of $1,088). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.