Earn point on your loyalty program!arrow arc left

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

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 Washington (DCA) to London (LCY)

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

Cheap flights from Washington to London in September , October 2026

29 Sep - 28 Oct $ 1,101.00
DCA
Washington
Air Canada
2 STOPS
LCY
London
LCY
London
Air Canada
2 STOPS
DCA
Washington
Pick dates
29 Sep - 29 Oct $ 1,101.00
DCA
Washington
Air Canada
2 STOPS
LCY
London
LCY
London
Air Canada
2 STOPS
DCA
Washington
Pick dates
29 Sep - 23 Oct $ 1,113.00
DCA
Washington
Air Canada
2 STOPS
LCY
London
LCY
London
Air Canada
2 STOPS
DCA
Washington
Pick dates

Last minute flights from Washington to London

24 Sep - 30 Sep $ 1,273.00
DCA
Washington
JetBlue Airways
2 STOPS
LCY
London
LCY
London
JetBlue Airways
2 STOPS
DCA
Washington
Pick dates
22 Sep - 30 Sep $ 1,330.00
DCA
Washington
JetBlue Airways
2 STOPS
LCY
London
LCY
London
JetBlue Airways
2 STOPS
DCA
Washington
Pick dates
22 Sep - 30 Sep $ 1,358.00
DCA
Washington
JetBlue Airways
2 STOPS
LCY
London
LCY
London
JetBlue Airways
2 STOPS
DCA
Washington
Pick dates

One-way flights to London from Washington

5:00 PM - 11:55 AM
Swiss International Air Lines
2 Stops
14h 35m
DCA - LCY
$ 486
Kiwi
Pick dates
3:30 PM - 11:55 AM
United Airlines
2 Stops
16h 5m
DCA - LCY
$ 505
Kiwi
Pick dates
5:55 PM - 1:05 PM
United Airlines
2 Stops
14h 50m
DCA - LCY
$ 751
Kiwi
Pick dates

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

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