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

Return flights

18 Mar - 25 Mar	TAP
24 Mar - 28 Apr	Air Transat
10 Mar - 17 Mar	Air Transat
16 Mar - 23 Mar	Air Transat
11 Mar - 18 Mar	FrenchBee
17 Mar - 24 Mar	Air Transat
09 Mar - 16 Mar	Air Transat
02 Mar - 09 Mar	Air Transat
03 Mar - 10 Mar	Air Transat
04 Mar - 11 Mar	FrenchBee
20 Mar - 27 Mar	Air Transat
30 Mar - 06 Apr	Air Transat
31 Mar - 12 Apr	Air Transat
31 Mar - 07 Apr	Air Transat
28 Mar - 05 Apr	Air Transat
29 Mar - 05 Apr	Air Transat
28 Mar - 04 Apr	Air Transat
27 Mar - 03 Apr	Air Transat
25 Mar - 01 Apr	TAP
15 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 519€

Return flights