$374 Cheap Flights from Washington to London

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Find The Best Dates To Fly from Ronald Reagan Washington National to Heathrow

Amazing DCA to LHR Flight Deals

The cheapest flights to Heathrow found within the past 7 days were $601 round trip and $374 one way. Prices and availability subject to change. Additional terms may apply.

Frequently asked questions

Can I catch a flight from Ronald Reagan Washington National Airport (DCA) to Heathrow Airport (LHR) right now?
It’s prudent to know about any travel advice reports and quarantine requirements in place in your destination city. Make sure you go to the Covid-19 Travel Advisor for up-to-date info on flying to Heathrow Airport (LHR).
Are there direct flights from DCA to Heathrow Airport (LHR)?
If you need to travel quickly from DCA to Heathrow Airport, look into American Airlines, Delta and British Airways. No airlines have direct flights between the two locations, so you’ll have to make at least one stopover.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Heathrow Airport, please visit our Customer Service Portal.
How long is the flight from DCA to LHR?
The travel time between Ronald Reagan Washington National Airport (DCA) and London Heathrow is approximately 10 hours and 58 minutes — long enough to muddle anyone’s body clock. Consider the differences in time zones and make sure you get some sleep on the flight to prevent jet lag.
What is the flight distance from DCA to LHR?
From DCA to London Heathrow, the flight distance is 3,700 mi. It’s a long-haul journey, so make sure you pack your carry-on essentials. A pair of compression socks and an eye mask are smart items to begin with.
What airlines fly from DCA to Heathrow Airport (LHR)?
No direct flights are offered between DCA and Heathrow Airport. Start planning early to save time and find the best route with the least amount of connections.
What airlines have practices regarding COVID-19 in place and use social distancing?
From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with British Airways, Virgin Atlantic or SAS you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.


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Route Info

Flight path for flights from Ronald Reagan National Airport to London Heathrow Airport

3,674.00 miles

Airlines & Aircraft Used on DCA to LHR Flight Routes

Airline Carrier
Air Canada
Boeing 737-300 pax
Air Canada
Boeing 737-500 pax
Air Canada
Boeing 737-700 pax
American Airlines
Boeing 737-300 pax
Delta Air Lines
De Havilland Canada DHC-8-400 Dash 8Q
United Airlines
Boeing 737-300 pax
United Airlines
Boeing 737-500 pax
United Airlines
Boeing 737-700 pax
United Airlines
De Havilland Canada DHC-8 Dash 8 all models

Discover our best flights from Washington DCA to London LHR. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 


Find our best return flights from Washington DCA to London LHR at the right price  

Airfares to London LHR from Washington DCA currently cost between $601 and $633. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 


Book one-way flights from Washington DCA to London LHR 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Washington DCA to London LHR on Travelocity starting at $374. Prices and availability subject to change. Additional terms may apply. 


Get to London LHR from Washington DCA quicker with direct flights. 

Get to London faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to LHR from DCA to take around hour(s) min(s).  


Find our cheapest airfares for flights from Washington DCA to London LHR

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to LHR from DCA. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  


Get our best airfare deals for your flight from Washington DCA to London LHR today 

If you’re flexible about when you travel, November is usually the cheapest month to fly from Washington DCA to London LHR. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 


Book flexible airline tickets for flights to London LHR from Washington DCA 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to LHR from DCA have this option.  


Travel with confidence when you book flights to London LHR from Washington DCA with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.