Cheap flights from London Heathrow to Washington Dulles

Flights tailored to your budget

Selected dates may not give results due to COVID-19. We suggest you change the dates.
Multi-city Round trip One way
Round trip
One way
Multi-city
From
No results match your search criteria
To
No results match your search criteria
{{ weekDay }}
Dates
{{ panel.label }}
Looking for a one-way flight?

Flexible dates can save you money

Explore nearby dates to find lower fares

{{ fromDate | dateToLongNamedDate }}
?
Flexible dates
Depart {{ flexibleFromDateLabel }}
{{ option.label }}
?
Return {{ flexibleToDateLabel }}
{{ option.label }}
Passengers / Class
Number of passengers
Adults
{{ adults }}
Children
{{ children }}
Infants
{{ infants }}
Class
Economy
Available for Economy only
New Multi-city experience

Discover a new Multi-city search experience from Jetcost, designed to handle more complex itineraries. By continuing, you’ll be taken to a dedicated page powered by Kiwi.com.
How do we get the info you see here? Please note that we offer an online comparison service and that all information and prices regarding services and/or products available on our website are provided by our third-party partners. We do our best to show you up-to-date information, but please note that we are not responsible for the completeness or accuracy of the information published, so please check all conditions carefully on the website of the partner before making a booking. Please check our Terms and Conditions for more details. Read more

What’s the cost of a flight from London Heathrow to Washington Dulles?

Prices vary based on date, airline, and availability. Compare several options if you're flying between London and Washington.

Choose a date to explore the best fares now.

If possible, avoid holiday periods: ticket prices tend to rise quickly and availability drops, especially on busy routes. Morning and evening flights are often in high demand too — book early to get a good fare.

Which airports near London or Washington offer flights?

In many cases, using a nearby airport can improve your chances of finding direct flights or better rates.

  • Airports in London: 6 airports are active - City Airport, Gatwick, Heathrow, Luton, Southend, Stansted.
  • Airports in Washington: 3 options available in Washington - Dulles international, Ronald Reagan, Washington International.

Secondary airports can offer faster travel thanks to shorter lines and quicker boarding times than major ones.

Flights from London - Heathrow to Washington - Dulles international

Adjust your flight filters for London Heathrow – Washington Dulles

Jetcost gives you tools to search smarter. Pick your ideal price range, airline, departure time, and flight type — then compare offers from the best travel agencies and carriers.

Other popular destinations

Planning a trip to United States? These cities are popular too: Atlanta, Los Angeles, Miami, New York City, Orlando.

Sorting options let you see the most affordable flights first. Some results may include extra fees shown only at checkout — always read carefully to see what’s included.
Frequently Asked Questions

Frequently asked questions about flights from London Heathrow to Washington Dulles.

How much does an airline ticket from London Heathrow to Washington Dulles cost?

Flight prices can vary a lot depending on the period and destination. At the moment, this information is not available for flights from London Heathrow to Washington Dulles.

How far is London from Washington?

London is about 5902 km from Washington.

What are the airports in Washington?

Washington has 3 airports: Dulles international, Ronald Reagan, Washington International.

What are the airports in London?

London has 6 airports: City Airport, Gatwick, Heathrow, Luton, Southend, Stansted.

What are the most popular cities in United States?

The most popular cities in United States according to our users' searches are: Atlanta, Los Angeles, Miami, New York City, Orlando.

When should I book a flight from London to Washington?

The best time to book a flight from London to Washington is 4 months in advance, while the worst time is 1 week in advance.

What is the cheapest month to fly from London to Washington?

This information is not available at the moment.

What is the most expensive month to fly from London to Washington?

This information is not available at the moment.

What is the best day of the week to fly from London to Washington?

This information is not available at the moment.