Cheapest return flights from Washington to London in January from $487

Best time to book flights for Washington (IAD) to London (LHR) flights at AirHint

AirHint found the following cheapest return flights from Washington (IAD) to London (LHR) in January 2025 (see full year).

Return flights

29 Jan - 12 Feb Icelandair
31 Jan - 09 Feb Icelandair
23 Jan - 05 Feb Icelandair
22 Jan - 06 Feb Icelandair
21 Jan - 04 Feb Icelandair
23 Jan - 06 Feb Icelandair
30 Jan - 09 Feb Icelandair
14 Jan - 21 Jan Icelandair
31 Jan - 10 Feb Icelandair
24 Jan - 28 Jan Icelandair
23 Jan - 28 Jan Icelandair
29 Jan - 10 Feb Icelandair
30 Jan - 07 Feb Icelandair
20 Jan - 31 Jan Icelandair
20 Jan - 28 Jan Icelandair
23 Jan - 26 Jan Icelandair
20 Jan - 27 Jan Icelandair
19 Jan - 26 Jan Icelandair
23 Jan - 30 Jan Icelandair
23 Jan - 31 Jan Icelandair

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.

Book a cheap hotel in London

Cheap car rent in London