$264 Find Cheap Flights from Washington to the United Kingdom - Compare and Save

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to the United Kingdom.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington to the United Kingdom is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Washington to the United Kingdom with an airline and back with another airline.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Washington to the United Kingdom up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Washington and United Kingdom are connected by different airlines. The airlines that fly that route the most regularly are Alaska Airlines (21 flights per week), Air France (18 flights per week), and American Airlines (14 flights per week).

There are 40 airports in the United Kingdom. The busiest airport is London Heathrow Airport (LHR), with 46% of all flights arriving there.

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in the United Kingdom is London Heathrow Airport (LHR), with an average flight price of $580.

Based on KAYAK data, the cheapest day to fly to the United Kingdom is Monday where round-trip tickets can be as cheap as $909. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $1,016 on average.

The cheapest time of day to fly to the United Kingdom is generally in the afternoon, when round-trip flights cost $946 on average. The most expensive time of day to fly to the United Kingdom is generally at night, which is peak travel time and where the average cost of a ticket is $984.

The cheapest ticket to the United Kingdom from Washington found in the last 5 days was to London Heathrow Airport, at $632 round-trip. The most popular route is Seattle (SEA) to London Heathrow Airport (LHR) and the cheapest round-trip airline ticket found on this route in the last 5 days was $632.

The cheapest month for flights from Washington to the United Kingdom is August, when tickets cost $430 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $635 and $550 respectively.

To get a below average price on the flight from Washington to the United Kingdom, you should book around 3 weeks before departure, which saves you about 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

From Washington, there are direct flights to the United Kingdom from 1 city. This city is Seattle and there are 172 direct flights each week.

There are around 25 direct flights from within Washington to the United Kingdom every day. Most flights (55%) depart in the evening.

Each week there are around 172 direct flights from within Washington to the United Kingdom. The most common day for departures is Tuesday, with 15% of flights taking off on this day.

An average nonstop flight from Washington to the United Kingdom takes 16h 01m, covering a distance of 4655 miles. The shortest route is Seattle (SEA) to London Heathrow Airport (LHR) with an average flight time of 9h 15m.

There are not any medium-haul (3-6 hour flight duration) or short-haul (up to 3 hour flight duration) flights to the United Kingdom. Instead, there are 172 long-haul flights (6-12 hour flight duration), with the most arriving from Seattle.

Based on KAYAK flight searches, the most popular destination is London (93% of total searches to the United Kingdom). The next most popular destinations are Edinburgh (4%) and Manchester (2%). Searches for flights to Belfast (1%), to Aberdeen (0%) and to Leeds (0%) are also popular.