$206+ Cheap flights from Washington, D.C. (WAS) to London (LON)

Flying on Icelandair is currently your cheapest option to London, with prices starting at $501. Additional round-trip tickets that might be worth considering are offered by Iberia and SWISS, with the lowest prices starting at $503 and $507, respectively. Icelandair is 31% cheaper than the average price of flights available within the next 90 days to this destination.

$231 is the cheapest one-way deal found within the past few days, from WorldTicket. You may also be able to find cheap deals on Icelandair and PLAY, with prices starting from $235 and $242, 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 American Airlines (53%), Aer Lingus (52%) and British Airways (52%).

While on average a flight from Washington, D.C. to London is generally $2,103, our data shows the cheapest flight currently is $298. When looking at the most popular route, (Washington, D.C. Dulles Intl - London Heathrow), you can expect to pay $421 for that flight.

Of the flights from Washington, D.C. to London that have layovers, most of them stop in Reykjavik. New York 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 Harpa, Hallgrímskirkja, and Laugardalslaug Geothermal Pool. Those on a layover in Reykjavik interested in visiting Harpa, Hallgrímskirkja, or Laugardalslaug Geothermal Pool can do so by traveling 23.3 mi, 23.2 mi, and 24.6 mi, respectively from Reykjavik Keflavik Intl. Travelers can book a car rental at Reykjavik Keflavik Intl for about $78 per day to make their sightseeing more efficient.

Times Square, New York City Center, and Madison Square Garden are the most popular attractions in New York if you're in need of something to do during your layover. Travelers on a layover in New York can visit Times Square, New York City Center, and Madison Square Garden, by traveling 13.6 mi, 13.6 mi, and 13.6 mi, respectively after landing at New York John F Kennedy Intl. Travelers can book a car rental at New York John F Kennedy Intl for about $84 per day to make their sightseeing more efficient.

Flights departing from Washington, D.C. and landing in London layover in Dublin least frequently. Boston 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 $1,097). 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.