Cheap Flights from Washington Dulles to London Heathrow in 2019

Flight information Washington Dulles to London Heathrow

Cheapest roundtrip price last month


Non-stop airlines


Flights per week


Average flight time, total distance 3671 miles

7h 0min

Most popular airline last month


London Heathrow

1 airport

Explore London

London Hotels

The Ritz London


The Soho Hotel


Charlotte Street Hotel


When you fly from Washington, D.C. to London, you are leaving a relatively small city for a major metropolitan area. London’s nearly 9 million people make it a bustling, busy place. You will also experience some sticker shock when paying for things.

Perhaps most importantly, you should get some details about each of the airports you will be using. Learn about Dulles Airport and Heathrow Airport, so your flight can go as smoothly as possible.

Departing Airport

Be prepared for the sheer size of the Dulles terminal. Concourse A has 35 commuter gates and 12 mainline gates, Concourse B has 29 mainline gates, Concourse C has 22 mainline gates, Concourse D has 22 mainline gates and Concourse Z has 4 mainline gates.

Passengers navigate the Terminal on the AeroTrain. There are also transports between Concourses C and D. A moving sidewalk transports passengers from the terminal to Concourse B.

Dulles Airport has parking rates that average $6.00 per hour. Day rates range from $10 to $30, depending on the lot you choose.

Arrive two-and-one-half hours before your flight departure time to allow for navigating the airport and going through security check.


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Dulles offers non-stop flights to London. Carriers that fly non-stop include American, Finnair, Iberia, British Airways, Austrian, United, Lufthansa, Delta and Virgin Atlantic.

Iceland Air and Aer Lingus offer connecting flights to London.

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Arrival Airport

Heathrow Terminals 2, 3, and 5 are the destinations for your flight from Washington, D.C., depending on which airline you choose. Because you will be arriving from a non-EU destination, you will go to the red customs point to declare anything.

Note that baggage trolleys are available, as well as assistance for the disabled and cellphone rental.

When you arrive, be sure to go to Café Nero, where you will hear live music. You may also visit the numerous lounges throughout the terminal.

Note that going through customs can add time to your arrival, so allow for it. Also, you will need time to travel through the terminal to your exit, which can be quite far away from your arrival gate.

Comparison of Washington, D.C. vs. London

London time is 5 hours ahead of Washington, D.C.

Meals are 28% more expensive in London, but general consumer prices are nearly 8% lower. You will find taxis 200% more expensive in London.

Despite London’s reputation for being foggy, it has fewer rainy days than Washington, D.C. It averages 106 rainy days vs. Washington’s 114.

London has a population of 8.6 million as opposed to the .62 million in Washington. In addition, London has 240 museums, while Washington has 73.

Heathrow handles nearly 1300 flights per day, compared to Dulles, which has 1,800 to 2,000 per day.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.