Cheapest return flights from Washington to London in January from $490

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

Return flights

20 Jan - 28 Jan jetBlue
13 Jan - 18 Jan jetBlue
19 Jan - 30 Jan jetBlue
16 Jan - 19 Jan jetBlue
14 Jan - 19 Jan jetBlue
07 Jan - 12 Jan jetBlue
06 Jan - 12 Jan jetBlue
06 Jan - 20 Jan jetBlue
06 Jan - 19 Jan jetBlue
06 Jan - 18 Jan jetBlue
29 Jan - 02 Feb Icelandair
29 Jan - 01 Feb Icelandair

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

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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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