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 March , April 2026

30 Mar - 27 Apr $ 1,014.00
DCA
Washington
Iberia Airlines
3 STOPS
LCY
London
LCY
London
Iberia Airlines
2 STOPS
DCA
Washington
Pick dates
30 Mar - 27 Apr $ 1,036.00
DCA
Washington
Iberia Airlines
3 STOPS
LCY
London
LCY
London
Iberia Airlines
2 STOPS
DCA
Washington
Pick dates
30 Mar - 27 Apr $ 1,098.00
DCA
Washington
Iberia Airlines
3 STOPS
LCY
London
LCY
London
Iberia Airlines
2 STOPS
DCA
Washington
Pick dates

Last minute flights from Washington to London

23 Mar - 01 Apr $ 1,427.00
DCA
Washington
TAP Portugal
2 STOPS
LCY
London
LCY
London
TAP Portugal
3 STOPS
DCA
Washington
Pick dates
24 Mar - 01 Apr $ 1,438.00
DCA
Washington
TAP Portugal
2 STOPS
LCY
London
LCY
London
TAP Portugal
3 STOPS
DCA
Washington
Pick dates
23 Mar - 31 Mar $ 1,643.00
DCA
Washington
Air Europa
2 STOPS
LCY
London
LCY
London
Air Europa
2 STOPS
DCA
Washington
Pick dates

One-way flights to London from Washington

5:01 PM - 12:10 PM
United Airlines
2 Stops
15h 54m
DCA - LCY
$ 418
Kiwi
Pick dates
4:10 PM - 12:10 PM
United Airlines
2 Stops
15h 45m
DCA - LCY
$ 474
Kiwi
Pick dates
5:01 PM - 12:10 PM
United Airlines
2 Stops
15h 54m
DCA - LCY
$ 488
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.