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

Return flights

09 Mar - 16 Mar	TAP
11 Mar - 18 Mar	TAP
25 Mar - 01 Apr	TAP
30 Mar - 06 Apr	TAP
18 Mar - 25 Mar	FrenchBee
06 Mar - 13 Mar	Air Transat
29 Mar - 05 Apr	TAP
03 Mar - 10 Mar	Air Transat
17 Mar - 24 Mar	Air Transat
10 Mar - 17 Mar	Air Transat
16 Mar - 23 Mar	Air Transat
20 Mar - 27 Mar	Air Transat
23 Mar - 30 Mar	TAP
31 Mar - 07 Apr	Air Transat
27 Mar - 03 Apr	TAP
26 Mar - 02 Apr	Air Transat
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.

Book a cheap hotel in London

Cheap car rent in London

Cheapest return flights from Montreal to London in March from $545

Return flights