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

Return flights

06 Mar - 11 Mar	TAP
04 Mar - 11 Mar	TAP
18 Mar - 25 Mar	TAP
30 Mar - 15 Apr	TAP
23 Mar - 24 Apr	TAP
29 Mar - 07 Apr	TAP
04 Mar - 25 Mar	TAP
04 Mar - 15 Mar	TAP
15 Mar - 25 Mar	TAP
04 Mar - 24 Mar	TAP
10 Mar - 17 Mar	Porter Airlines (Canada) Ltd
03 Mar - 10 Mar	Porter Airlines (Canada) Ltd
06 Mar - 17 Mar	Air Transat
20 Mar - 05 Apr	Air Transat
20 Mar - 09 Apr	Air Transat
27 Mar - 11 Apr	Air Transat
29 Mar - 05 Apr	Air Transat
31 Mar - 10 Apr	Air Transat
28 Mar - 05 Apr	Air Transat
15 Mar - 15 Apr	TAP

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 $498

Return flights