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

Return flights

04 Mar - 18 Mar	TAP
11 Mar - 18 Mar	TAP
04 Mar - 11 Mar	Air Transat
03 Mar - 17 Mar	Air Transat
04 Mar - 25 Mar	Air Transat
03 Mar - 24 Mar	Air Transat
04 Mar - 24 Mar	Air Transat
03 Mar - 10 Mar	Air Transat
05 Mar - 12 Mar	Air Transat
09 Mar - 16 Mar	Air Transat
18 Mar - 08 Apr	Air Transat
29 Mar - 05 Apr	Air Transat
25 Mar - 05 Apr	Air Transat
26 Mar - 05 Apr	Air Transat
20 Mar - 08 Apr	Air Transat
30 Mar - 06 Apr	Air Transat
25 Mar - 15 Apr	TAP
17 Mar - 07 Apr	Air Transat
18 Mar - 12 Apr	Air Transat
31 Mar - 07 Apr	Air Transat

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

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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Cheapest return flights from Montreal to London in March from $485

Return flights