The Houses of Parliament and Big Ben in London, with a red double-decker bus crossing the Lambeth Bridge.

Swiss International Air Lines Cheap Flights from Washington to London

€261 Cheap Swiss International Air Lines flights Washington (WAS) to London (LON)

Prices were available within the past 7 days and start at €261 for one-way flights and €685 for return, for the period specified. Prices and availability are subject to change.
Swiss International Air Lines
Fri, 22 Jan - Fri, 29 Jan
IAD
Washington
LHR
London
€685
Return
Found 5 days ago
Select Swiss International Air Lines flight, departing Fri, 22 Jan from Washington to London, returning Fri, 29 Jan, priced at €685 Found 5 days ago
Swiss International Air Lines
Sun, 29 Nov - Tue, 8 Dec
IAD
Washington
LHR
London
€794
Return
Found 13 hours ago
Select Swiss International Air Lines flight, departing Sun, 29 Nov from Washington to London, returning Tue, 8 Dec, priced at €794 Found 13 hours ago
Swiss International Air Lines
Thu, 4 Feb - Tue, 16 Feb
IAD
Washington
LCY
London
€834
Return
Found 3 days ago
Select Swiss International Air Lines flight, departing Thu, 4 Feb from Washington to London, returning Tue, 16 Feb, priced at €834 Found 3 days ago
Swiss International Air Lines
Sun, 29 Nov - Tue, 8 Dec
IAD
Washington
LCY
London
€994
Return
Found 1 day ago
Select Swiss International Air Lines flight, departing Sun, 29 Nov from Washington to London, returning Tue, 8 Dec, priced at €994 Found 1 day ago
Swiss International Air Lines
Thu, 29 Oct - Fri, 27 Nov
IAD
Washington
LCY
London
€1,370
Return
Found 1 day ago
Select Swiss International Air Lines flight, departing Thu, 29 Oct from Washington to London, returning Fri, 27 Nov, priced at €1,370 Found 1 day ago

Find the cheapest month to fly from Washington (WAS) to London (LON)

February is typically the cheapest month to fly

From €444 - €695 per traveller.

Travel information

Origin airport
Washington Dulles Intl. Airport
Destination airport
London City Airport
Distance
5,932 km away
Airline name
Swiss International Air Lines
Airline code
LX
Return price
€685
*Available to Expedia members.