NZ$943 Cheap Flights London to Washington (LHR-IAD)

View NZ$943 flight on Tue, 17 Feb 2026Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Washington Dulles International Airport (IAD)

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Cheap Flights from London (LHR) to Washington (IAD)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Fri, 20 Feb - Fri, 27 Feb
LHR
London
IAD
Washington
NZ$833 Return, found 2 days ago
NZ$833
Return
found 2 days ago
Select Icelandair flight, departing Fri, 20 Feb from London to Washington, returning Fri, 27 Feb, priced at NZ$833 found 2 days ago
Scandinavian Airlines
Thu, 19 Nov - Wed, 25 Nov
LHR
London
IAD
Washington
NZ$1,030 Return, found 3 days ago
NZ$1,030
Return
found 3 days ago
Select Scandinavian Airlines flight, departing Thu, 19 Nov from London to Washington, returning Wed, 25 Nov, priced at NZ$1,030 found 3 days ago
United
Fri, 20 Feb - Fri, 27 Feb
LHR
London
IAD
Washington
NZ$1,034 Return, found 2 days ago
NZ$1,034
Return
found 2 days ago
Select United flight, departing Fri, 20 Feb from London to Washington, returning Fri, 27 Feb, priced at NZ$1,034 found 2 days ago
Austrian Airlines
Thu, 19 Nov - Wed, 25 Nov
LHR
London
IAD
Washington
NZ$1,040 Return, found 3 days ago
NZ$1,040
Return
found 3 days ago
Select Austrian Airlines flight, departing Thu, 19 Nov from London to Washington, returning Wed, 25 Nov, priced at NZ$1,040 found 3 days ago
American Airlines
Tue, 21 Apr - Tue, 28 Apr
LHR
London
IAD
Washington
NZ$1,062 Return, found 2 days ago
NZ$1,062
Return
found 2 days ago
Select American Airlines flight, departing Tue, 21 Apr from London to Washington, returning Tue, 28 Apr, priced at NZ$1,062 found 2 days ago
Lufthansa
Fri, 20 Feb - Fri, 27 Feb
LHR
London
IAD
Washington
NZ$1,071 Return, found 2 days ago
NZ$1,071
Return
found 2 days ago
Select Lufthansa flight, departing Fri, 20 Feb from London to Washington, returning Fri, 27 Feb, priced at NZ$1,071 found 2 days ago
Air Canada
Tue, 21 Apr - Tue, 28 Apr
LHR
London
IAD
Washington
NZ$1,073 Return, found 2 days ago
NZ$1,073
Return
found 2 days ago
Select Air Canada flight, departing Tue, 21 Apr from London to Washington, returning Tue, 28 Apr, priced at NZ$1,073 found 2 days ago
Virgin Atlantic
Tue, 21 Apr - Tue, 28 Apr
LHR
London
IAD
Washington
NZ$1,099 Return, found 2 days ago
NZ$1,099
Return
found 2 days ago
Select Virgin Atlantic flight, departing Tue, 21 Apr from London to Washington, returning Tue, 28 Apr, priced at NZ$1,099 found 2 days ago
Delta
Tue, 21 Apr - Tue, 28 Apr
LHR
London
IAD
Washington
NZ$1,099 Return, found 2 days ago
NZ$1,099
Return
found 2 days ago
Select Delta flight, departing Tue, 21 Apr from London to Washington, returning Tue, 28 Apr, priced at NZ$1,099 found 2 days ago
British Airways
Mon, 1 June - Wed, 10 June
LHR
London
IAD
Washington
NZ$1,112 Return, found 1 day ago
NZ$1,112
Return
found 1 day ago
Select British Airways flight, departing Mon, 1 June from London to Washington, returning Wed, 10 June, priced at NZ$1,112 found 1 day ago

Frequently asked questions

How much is a flight from Heathrow Airport (LHR) to Washington Dulles Intl. Airport (IAD)?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip journey between London Heathrow and Dulles Intl. Airport was NZ$833. Fares this cheap don't wait forever, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from LHR to Dulles Intl. Airport?
This can differ from airline to airline, as each has its own terms and conditions. Visit the Customer Service Portal, where you'll find easy instructions on how to cancel your flight online.
How do I find cheap flights from London Heathrow to IAD 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 Dulles Intl. Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Heathrow Airport (LHR) to Dulles Intl. Airport?
With around 5 900 kilometres separating Heathrow Airport and IAD, your flight will be a long one. Pack wisely to make your time on board comfortable. Simple things like warm clothes and some noise-cancelling headphones can make the biggest difference.
Which airlines fly direct from LHR to Dulles Intl. Airport?
United Airlines (UA) is a popular choice. It offers 60 flights between LHR and Washington Dulles Intl. Airport (IAD) each month. You could also have a look at the airfares with British Airways (BA). This airline operates 60 flights every month between Hounslow and Chantilly.
Are London Heathrow to IAD flight tickets cheaper when they're purchased at the last minute?
Flight prices fluctuate, so not always. While last-minute deals between LHR and Washington Dulles Intl. Airport (IAD) are of course possible, it's also a good idea to keep a close eye on prices well before you fly. In fact, some air carriers publish their prices up to a year ahead of the departure date. Expedia is constantly updating the best bargains around, so check back often and be ready to grab your seat when fare prices drop.

Travel information

Origin airport
Heathrow
Destination airport
Washington Dulles Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic, avianca
Return price
NZ$832
Distance
5866 km
Average flight time
3 hours 36 mins

Book with confidence

Perfect flights from London to Washington

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from London to Washington. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
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Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Washington.
Perfect flights from London to Washington

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