Finnair Cheap Flights from Washington to London: AY WAS→LON

View HK$3,843 flight on Sun, 3 Aug 2025Opens in a new window

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Prices were available within the past 7 days and start at HK$3,843 for one-way flights and HK$6,138 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Finnair
Sun, 10 Aug - Tue, 26 Aug
DCA
Washington
LHR
London
HK$6,138 Return, found 1 day ago
HK$6,138
Return
found 1 day ago
Select Finnair flight, departing Sun, 10 Aug from Washington to London, returning Tue, 26 Aug, priced at HK$6,138 found 1 day ago
Finnair
Mon, 4 Aug - Thu, 18 Sep
IAD
Washington
LHR
London
HK$6,563 Return, found 4 days ago
HK$6,563
Return
found 4 days ago
Select Finnair flight, departing Mon, 4 Aug from Washington to London, returning Thu, 18 Sep, priced at HK$6,563 found 4 days ago
Finnair
Fri, 11 Jul - Fri, 18 Jul
BWI
Baltimore
LHR
London
HK$12,874 Return, found 6 days ago
HK$12,874
Return
found 6 days ago
Select Finnair flight, departing Fri, 11 Jul from Baltimore to London, returning Fri, 18 Jul, priced at HK$12,874 found 6 days ago
Washington to London route information
Origin airport
Ronald Reagan Washington National
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, Finnair, Iberia, KLM, Lufthansa, Royal Air Maroc, Scandinavian Airlines, Turkish Airlines, United, Virgin Atlantic
Popular airline
British Airways
Distance
5847 km
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