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

Return flights

26 Jan - 04 Feb	TAP
28 Jan - 04 Feb	TAP
26 Jan - 03 Feb	TAP
19 Jan - 28 Jan	TAP
21 Jan - 28 Jan	TAP
21 Jan - 04 Feb	TAP
19 Jan - 27 Jan	TAP
23 Jan - 03 Feb	TAP
19 Jan - 03 Feb	TAP
19 Jan - 26 Jan	Air Transat
18 Jan - 25 Jan	TAP
21 Jan - 29 Jan	TAP
07 Jan - 28 Jan	TAP
07 Jan - 13 Jan	Porter Airlines (Canada) Ltd
08 Jan - 18 Jan	Air Transat
15 Jan - 22 Jan	Air Transat
26 Jan - 09 Feb	TAP
29 Jan - 19 Feb	Air Transat
28 Jan - 11 Feb	Air Transat
27 Jan - 10 Feb	Air Transat

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

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

Cheapest return flights from Montreal to London in January from $456

Return flights