Earn point on your loyalty program!arrow arc left

Cheap flights from London (LCY) to Washington (DCA)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from London (LCY) to Washington (DCA)

How to find the cheapest flight from London (LCY) to Washington (DCA)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from London (LCY) to Washington (DCA)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from London (LCY) to Washington (DCA)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from London to Washington in August , September 2026

31 Aug - 16 Sep $ 1,058.00
LCY
London
Swiss International Air Lines
3 STOPS
DCA
Washington
DCA
Washington
Swiss International Air Lines
2 STOPS
LCY
London
Pick dates
31 Aug - 29 Sep $ 1,058.00
LCY
London
Swiss International Air Lines
3 STOPS
DCA
Washington
DCA
Washington
Swiss International Air Lines
2 STOPS
LCY
London
Pick dates
31 Aug - 23 Sep $ 1,058.00
LCY
London
Swiss International Air Lines
3 STOPS
DCA
Washington
DCA
Washington
Swiss International Air Lines
2 STOPS
LCY
London
Pick dates

Last minute flights from London to Washington

28 Aug - 01 Sep $ 1,149.00
LCY
London
Virgin Atlantic Airways
2 STOPS
DCA
Washington
DCA
Washington
Virgin Atlantic Airways
2 STOPS
LCY
London
Pick dates
27 Aug - 01 Sep $ 1,356.00
LCY
London
KLM Royal Dutch Airlines
2 STOPS
DCA
Washington
DCA
Washington
KLM Royal Dutch Airlines
2 STOPS
LCY
London
Pick dates
27 Aug - 01 Sep $ 1,374.00
LCY
London
KLM Royal Dutch Airlines
2 STOPS
DCA
Washington
DCA
Washington
KLM Royal Dutch Airlines
2 STOPS
LCY
London
Pick dates

One-way flights to Washington from London

8:15 PM - 8:00 PM
Air Canada
3 Stops
30h 33m
LCY - DCA
$ 629
Kiwi
Pick dates
10:00 AM - 8:55 PM
Air Canada
2 Stops
17h 31m
LCY - DCA
$ 829
Kiwi
Pick dates
10:00 AM - 8:55 PM
Air Canada
2 Stops
17h 31m
LCY - DCA
$ 833
Kiwi
Pick dates

How to find the cheapest flight from London (LCY) to Washington (DCA)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from London (LCY) to Washington (DCA)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from London (LCY) to Washington (DCA)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.