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

Return flights

25 Mar - 20 Apr	TAP
17 Mar - 24 Mar	Air Canada
23 Mar - 30 Mar	Air Canada
18 Mar - 23 Mar	Lufthansa
18 Mar - 31 Mar	Lufthansa
24 Mar - 31 Mar	Lufthansa
11 Mar - 24 Mar	FrenchBee
15 Mar - 25 Mar	Lufthansa
10 Mar - 18 Mar	Air Canada
18 Mar - 22 Apr	Air Canada
25 Mar - 01 Apr	Air Canada
31 Mar - 07 Apr	Air Canada
23 Mar - 01 Apr	Air Canada
03 Mar - 10 Mar	Lufthansa
09 Mar - 16 Mar	British Airways	direct
27 Mar - 09 Apr	Air Canada
15 Mar - 15 Apr	Air Canada
30 Mar - 13 Apr	Lufthansa	direct
30 Mar - 13 Apr	Air Canada
30 Mar - 06 Apr	Air Canada

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 449€

Return flights