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

Return flights

11 Mar - 18 Mar	TAP
02 Mar - 08 Mar	Air Transat
08 Mar - 25 Mar	Air Transat
02 Mar - 09 Mar	Air Transat
18 Mar - 25 Mar	Air Transat
22 Mar - 29 Mar	Air Transat
01 Mar - 10 Mar	Air Transat
04 Mar - 11 Mar	Air Transat
10 Mar - 24 Mar	Air Transat
30 Mar - 06 Apr	TAP
06 Mar - 13 Mar	Air Transat
25 Mar - 01 Apr	TAP
29 Mar - 05 Apr	TAP
31 Mar - 07 Apr	Air Transat
26 Mar - 02 Apr	Air Transat
27 Mar - 03 Apr	TAP
28 Mar - 04 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 467€

Return flights