S$636 Cheap Flights from Washington to London

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Popular airlines from Washington Dulles Intl. Airport (IAD) to London

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Cheap Flights from Washington to London (IAD-LON)

Prices were available within the past 7 days and start at S$636 for one-way flights and S$970 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Sun, 19 Apr - Tue, 28 Apr
IAD
Washington
LHR
London
S$970 Return, found 5 hours ago
S$970
Return
found 5 hours ago
Select Scandinavian Airlines flight, departing Sun, 19 Apr from Washington to London, returning Tue, 28 Apr, priced at S$970 found 5 hours ago
Scandinavian Airlines
Sun, 19 Apr - Tue, 28 Apr
IAD
Washington
LHR
London
S$975 Return, found 5 hours ago
S$975
Return
found 5 hours ago
Select Scandinavian Airlines flight, departing Sun, 19 Apr from Washington to London, returning Tue, 28 Apr, priced at S$975 found 5 hours ago
Scandinavian Airlines
Sun, 19 Apr - Tue, 28 Apr
IAD
Washington
LHR
London
S$979 Return, found 5 hours ago
S$979
Return
found 5 hours ago
Select Scandinavian Airlines flight, departing Sun, 19 Apr from Washington to London, returning Tue, 28 Apr, priced at S$979 found 5 hours ago
Turkish Airlines
Fri, 20 Nov - Wed, 25 Nov
IAD
Washington
STN
London
S$1,011 Return, found 2 days ago
S$1,011
Return
found 2 days ago
Select Turkish Airlines flight, departing Fri, 20 Nov from Washington to London, returning Wed, 25 Nov, priced at S$1,011 found 2 days ago
Delta
Sun, 19 Apr - Tue, 28 Apr
IAD
Washington
LHR
London
S$1,129 Return, found 5 hours ago
S$1,129
Return
found 5 hours ago
Select Delta flight, departing Sun, 19 Apr from Washington to London, returning Tue, 28 Apr, priced at S$1,129 found 5 hours ago
Virgin Atlantic
Sun, 19 Apr - Tue, 28 Apr
IAD
Washington
LHR
London
S$1,129 Return, found 5 hours ago
S$1,129
Return
found 5 hours ago
Select Virgin Atlantic flight, departing Sun, 19 Apr from Washington to London, returning Tue, 28 Apr, priced at S$1,129 found 5 hours ago
United
Sun, 19 Apr - Tue, 28 Apr
IAD
Washington
LHR
London
S$1,129 Return, found 5 hours ago
S$1,129
Return
found 5 hours ago
Select United flight, departing Sun, 19 Apr from Washington to London, returning Tue, 28 Apr, priced at S$1,129 found 5 hours ago
British Airways
Sun, 19 Apr - Tue, 28 Apr
IAD
Washington
LHR
London
S$1,165 Return, found 5 hours ago
S$1,165
Return
found 5 hours ago
Select British Airways flight, departing Sun, 19 Apr from Washington to London, returning Tue, 28 Apr, priced at S$1,165 found 5 hours ago
Swiss International Air Lines
Mon, 3 Aug - Fri, 21 Aug
IAD
Washington
LCY
London
S$1,171 Return, found 6 days ago
S$1,171
Return
found 6 days ago
Select Swiss International Air Lines flight, departing Mon, 3 Aug from Washington to London, returning Fri, 21 Aug, priced at S$1,171 found 6 days ago
Brussels Airlines
Mon, 3 Aug - Fri, 21 Aug
IAD
Washington
LHR
London
S$1,183 Return, found 6 days ago
S$1,183
Return
found 6 days ago
Select Brussels Airlines flight, departing Mon, 3 Aug from Washington to London, returning Fri, 21 Aug, priced at S$1,183 found 6 days ago

Frequently asked questions

How much is a flight from IAD to London (LON-All Airports)?
If you're travelling from Washington Dulles Intl. Airport (IAD) to London (LON-All Airports), round-trip journeys start from S$970. This figure is based on fares listed within the last 7 days on Expedia for flights departing within the next year, so don't let a good deal slip through your fingers. Book today and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from IAD to London (LON-All Airports)?
This varies between airlines, as each has its own terms and conditions. Head to the Customer Service Portal, where there are easy-to-follow instructions on how to cancel your flight online.
How do I find cheap flights from Dulles Intl. Airport to London (LON-All Airports) 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 Dulles Intl. Airport to London (LON-All Airports) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from IAD to London (LON-All Airports)?
The distance is around 5,900 kilometres, so fill your carry-on luggage with whatever you need to make your journey comfortable. Wondering what to take on board your Chantilly to England flight? A travel pillow, earplugs and a sleep mask are among the essentials.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to London (LON-All Airports)?
United Airlines (UA) is the number one choice for many travellers. It offers 60 flights from Dulles Intl. Airport to London (LON-All Airports) each month. If you want more options, check out the fares from British Airways (BA). This airlines operates 60 monthly flights between these airports.
Are Dulles Intl. Airport to London (LON-All Airports) flight tickets cheaper when they're purchased at the last minute?
It is possible to pick up great last-minute deals from IAD to London (LON-All Airports), but it can also be hit-or-miss. As many airlines release seats up to a year in advance, it's worth keeping an eye on fares early and being ready to book when you spot a good bargain. Expedia compares carrier prices and updates flight deals regularly, so you can rest easy knowing you're always getting the latest offers.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Heathrow
Return price
S$969
Distance
5866 km

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Perfect flights from Washington to London

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*Note: Prices may vary based on availability and are subject to change.
Perfect flights from Washington to London

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