S$1,205 Cheap Flights from London to Washington

View S$1,205 flight on Tue, 23 Sep, 2025Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Ronald Reagan Washington National Airport (DCA)

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Cheap Flights from London to Washington (LHR-DCA)

Prices were available within the past 7 days and start at S$1,205 for one-way flights and S$737 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Tue, 23 Sep - Tue, 30 Sep
LHR
London
DCA
Washington
S$737 Return, found 2 hours ago
S$737
Return
found 2 hours ago
Select Air Canada flight, departing Tue, 23 Sep from London to Washington, returning Tue, 30 Sep, priced at S$737 found 2 hours ago
Air Canada
Tue, 23 Sep - Tue, 30 Sep
LHR
London
DCA
Washington
S$759 Return, found 2 hours ago
S$759
Return
found 2 hours ago
Select Air Canada flight, departing Tue, 23 Sep from London to Washington, returning Tue, 30 Sep, priced at S$759 found 2 hours ago
Delta
Mon, 8 Sep - Mon, 22 Sep
LHR
London
DCA
Washington
S$764 Return, found 21 hours ago
S$764
Return
found 21 hours ago
Select Delta flight, departing Mon, 8 Sep from London to Washington, returning Mon, 22 Sep, priced at S$764 found 21 hours ago
American Airlines
Mon, 8 Sep - Mon, 22 Sep
LHR
London
DCA
Washington
S$764 Return, found 21 hours ago
S$764
Return
found 21 hours ago
Select American Airlines flight, departing Mon, 8 Sep from London to Washington, returning Mon, 22 Sep, priced at S$764 found 21 hours ago
American Airlines
Tue, 23 Sep - Tue, 30 Sep
LHR
London
DCA
Washington
S$766 Return, found 2 hours ago
S$766
Return
found 2 hours ago
Select American Airlines flight, departing Tue, 23 Sep from London to Washington, returning Tue, 30 Sep, priced at S$766 found 2 hours ago
Finnair
Mon, 8 Sep - Mon, 22 Sep
LHR
London
DCA
Washington
S$779 Return, found 21 hours ago
S$779
Return
found 21 hours ago
Select Finnair flight, departing Mon, 8 Sep from London to Washington, returning Mon, 22 Sep, priced at S$779 found 21 hours ago
Finnair
Tue, 23 Sep - Tue, 30 Sep
LHR
London
DCA
Washington
S$781 Return, found 2 hours ago
S$781
Return
found 2 hours ago
Select Finnair flight, departing Tue, 23 Sep from London to Washington, returning Tue, 30 Sep, priced at S$781 found 2 hours ago
American Airlines
Mon, 8 Sep - Mon, 22 Sep
LHR
London
DCA
Washington
S$787 Return, found 21 hours ago
S$787
Return
found 21 hours ago
Select American Airlines flight, departing Mon, 8 Sep from London to Washington, returning Mon, 22 Sep, priced at S$787 found 21 hours ago
British Airways
Tue, 23 Sep - Tue, 30 Sep
LHR
London
DCA
Washington
S$788 Return, found 2 hours ago
S$788
Return
found 2 hours ago
Select British Airways flight, departing Tue, 23 Sep from London to Washington, returning Tue, 30 Sep, priced at S$788 found 2 hours ago
Finnair
Mon, 8 Sep - Mon, 22 Sep
LHR
London
DCA
Washington
S$802 Return, found 21 hours ago
S$802
Return
found 21 hours ago
Select Finnair flight, departing Mon, 8 Sep from London to Washington, returning Mon, 22 Sep, priced at S$802 found 21 hours ago

Find the cheapest month to fly from London (LHR) to Washington (DCA)

January is typically the cheapest month to fly

From S$609 - S$1,368 per traveller.

Graph displaying average flight prices per month

London to Washington route information
Origin airport
Heathrow
Destination airport
Ronald Reagan Washington National
Airlines serving
Air Canada, American Airlines, British Airways, Delta
Return price
S$737
Distance
5847 km

Perfect flights from London to Washington

Your Journey from London to Washington

Start your unforgettable journey with Expedia. Our broad selection of flights from London to Washington caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Air Canada, Delta, American Airlines, Finnair, British Airways, Lufthansa, United. Our selection of flights from Heathrow to Ronald Reagan Washington National caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with London to Washington Flights

Experience the joy of finding cheap flights from Heathrow to Ronald Reagan Washington National that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$1,205 and roundtrip prices from S$737*.
 

Pre-Flight Essentials

Ensure a smooth journey from London to Washington with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Washington

Picture yourself stepping off the plane in Washington and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your London to Washington Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from London to Washington.
 

Beyond the Flight – Exploring Washington

With Expedia, your adventure extends beyond the flight. Explore Washington at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from London to Washington with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from London to Washington with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from Heathrow Airport (LHR) to National Airport?
Round-trip journeys between London Heathrow and Ronald Reagan Washington National Airport (DCA) start from S$737. This is based on fares available within the last 7 days on Expedia for flights departing within the next year — book today so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Heathrow Airport (LHR) to National Airport?
Most flights can be cancelled online, but every air carrier has its own set of terms and conditions. If you do need to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from Heathrow Airport (LHR) to Ronald Reagan Washington National Airport (DCA) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Heathrow Airport to DCA flights, you'll see a "no change fees" filter for you to select.
How far is the flight from LHR to National Airport?
With a flight distance of 5,900 kilometres between Hounslow and Arlington, this is a long flight. Ensure that you keep well hydrated and go for a short walk down the aisle every so often.
Which airlines fly direct from Heathrow Airport to DCA?
Direct flights aren't available, so you'll have to make at least one stop between Heathrow Airport and DCA. Use the layover time to stretch your legs and grab a bite to eat.
Are Heathrow Airport to Ronald Reagan Washington National Airport (DCA) flight tickets cheaper when they're purchased at the last minute?
Booking last minute from London Heathrow to DCA can be hit-or-miss. It is possible to score a bargain, but you could also miss out completely! If you'd prefer to start your travel planning ahead of time, Expedia compares flight deals up to a year in advance. Just remember that not all airlines release their prices that far in advance. Our advice? Check back often as updates are made regularly.

Explore a world of travel with Expedia

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