S$1,268 Cheap Flights from London to Washington

View S$1,268 flight on Mon, 29 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$1,268 for one-way flights and S$792 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Swiss International Air Lines
Wed, 24 Sep - Wed, 1 Oct
LHR
London
DCA
Washington
S$792 Return, found 6 days ago
S$792
Return
found 6 days ago
Select Swiss International Air Lines flight, departing Wed, 24 Sep from London to Washington, returning Wed, 1 Oct, priced at S$792 found 6 days ago
Swiss International Air Lines
Wed, 24 Sep - Wed, 1 Oct
LHR
London
DCA
Washington
S$800 Return, found 6 days ago
S$800
Return
found 6 days ago
Select Swiss International Air Lines flight, departing Wed, 24 Sep from London to Washington, returning Wed, 1 Oct, priced at S$800 found 6 days ago
United
Wed, 24 Sep - Wed, 1 Oct
LHR
London
DCA
Washington
S$817 Return, found 6 days ago
S$817
Return
found 6 days ago
Select United flight, departing Wed, 24 Sep from London to Washington, returning Wed, 1 Oct, priced at S$817 found 6 days ago
Swiss International Air Lines
Wed, 24 Sep - Wed, 1 Oct
LHR
London
DCA
Washington
S$825 Return, found 6 days ago
S$825
Return
found 6 days ago
Select Swiss International Air Lines flight, departing Wed, 24 Sep from London to Washington, returning Wed, 1 Oct, priced at S$825 found 6 days ago
United
Wed, 24 Sep - Wed, 1 Oct
LHR
London
DCA
Washington
S$826 Return, found 6 days ago
S$826
Return
found 6 days ago
Select United flight, departing Wed, 24 Sep from London to Washington, returning Wed, 1 Oct, priced at S$826 found 6 days ago
Air Canada
Mon, 8 Sep - Mon, 15 Sep
LHR
London
DCA
Washington
S$831 Return, found 6 days ago
S$831
Return
found 6 days ago
Select Air Canada flight, departing Mon, 8 Sep from London to Washington, returning Mon, 15 Sep, priced at S$831 found 6 days ago
Delta
Mon, 8 Sep - Mon, 15 Sep
LHR
London
DCA
Washington
S$838 Return, found 6 days ago
S$838
Return
found 6 days ago
Select Delta flight, departing Mon, 8 Sep from London to Washington, returning Mon, 15 Sep, priced at S$838 found 6 days ago
American Airlines
Tue, 23 Sep - Tue, 30 Sep
LHR
London
DCA
Washington
S$840 Return, found 12 hours ago
S$840
Return
found 12 hours ago
Select American Airlines flight, departing Tue, 23 Sep from London to Washington, returning Tue, 30 Sep, priced at S$840 found 12 hours ago
Air Canada
Tue, 23 Sep - Tue, 30 Sep
LHR
London
DCA
Washington
S$842 Return, found 12 hours ago
S$842
Return
found 12 hours ago
Select Air Canada flight, departing Tue, 23 Sep from London to Washington, returning Tue, 30 Sep, priced at S$842 found 12 hours ago
Air Canada
Wed, 24 Sep - Wed, 1 Oct
LHR
London
DCA
Washington
S$848 Return, found 6 days ago
S$848
Return
found 6 days ago
Select Air Canada flight, departing Wed, 24 Sep from London to Washington, returning Wed, 1 Oct, priced at S$848 found 6 days ago

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

January is typically the cheapest month to fly

From S$603 - S$1,400 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, Finnair, Iberia, United, Virgin Atlantic
Return price
S$791
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 Swiss International Air Lines, United, Air Canada, Delta, American Airlines, Lufthansa, Air France, British Airways, Virgin Atlantic, KLM. 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$1,268 and roundtrip prices from S$792*.
 

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$792. 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.

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