Cheapest return flights from Washington to London in January from $587

AirHint found the following cheapest return flights from Washington (DCA) to London (LHR) in January 2026 (see full year).

Return flights

12 Jan - 21 Jan Air Canada
06 Jan - 13 Jan Air Canada
10 Jan - 22 Jan Air Canada
12 Jan - 26 Jan Scandinavian Airlines
04 Jan - 16 Jan Delta
12 Jan - 07 Feb Scandinavian Airlines
16 Jan - 23 Jan Air Canada
06 Jan - 31 Jan Air Canada
15 Jan - 21 Jan Air Canada
11 Jan - 18 Jan Air Canada
26 Jan - 21 Feb Air Canada
16 Jan - 19 Jan jetBlue
19 Jan - 14 Feb Air Canada
01 Jan - 28 Feb jetBlue

Also check the deals for one-way flights from Washington to London in January.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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