British Airways Cheap Flights from Washington to London

View €328 flight on Sun, 12 Oct 2025Opens in a new window

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Prices were available within the past 7 days and start at €328 for one-way flights and €442 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Tue, 9 Sep - Tue, 23 Sep
IAD
Washington
LHR
London
€442 Return, found 3 days ago
€442
Return
found 3 days ago
Select British Airways flight, departing Tue, 9 Sep from Washington to London, returning Tue, 23 Sep, priced at €442 found 3 days ago
British Airways
Mon, 11 Aug - Tue, 19 Aug
IAD
Washington
LHR
London
€499 Return, found 19 hours ago
€499
Return
found 19 hours ago
Select British Airways flight, departing Mon, 11 Aug from Washington to London, returning Tue, 19 Aug, priced at €499 found 19 hours ago
British Airways
Thu, 11 Sep - Sun, 21 Sep
IAD
Washington
LHR
London
€528 Return, found 8 hours ago
€528
Return
found 8 hours ago
Select British Airways flight, departing Thu, 11 Sep from Washington to London, returning Sun, 21 Sep, priced at €528 found 8 hours ago
British Airways
Mon, 11 Aug - Tue, 19 Aug
IAD
Washington
LHR
London
€537 Return, found 19 hours ago
€537
Return
found 19 hours ago
Select British Airways flight, departing Mon, 11 Aug from Washington to London, returning Tue, 19 Aug, priced at €537 found 19 hours ago
British Airways
Thu, 24 Jul - Mon, 28 Jul
DCA
Washington
LHR
London
€569 Return, found 6 days ago
€569
Return
found 6 days ago
Select British Airways flight, departing Thu, 24 Jul from Washington to London, returning Mon, 28 Jul, priced at €569 found 6 days ago
British Airways
Sun, 21 Sep - Thu, 2 Oct
BWI
Baltimore
LHR
London
€589 Return, found 6 days ago
€589
Return
found 6 days ago
Select British Airways flight, departing Sun, 21 Sep from Baltimore to London, returning Thu, 2 Oct, priced at €589 found 6 days ago
Washington to London route information
Origin airport
Washington Dulles Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Fly Play, ITA Airways, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, United, Virgin Atlantic
Popular airline
British Airways
Distance
5866 km
*Available to Expedia members.