Cheapest return flights from Montreal to London in September from 592€

Best time to book flights for Montreal (YUL) to London (LHR) flights at AirHint

AirHint found the following cheapest return flights from Montreal (YUL) to London (LHR) in September 2025 (see full year).

Return flights

29 Sep - 10 Oct Air Canada
24 Sep - 01 Oct TAP
25 Sep - 02 Oct TAP
29 Sep - 06 Oct TAP
28 Sep - 05 Oct TAP
24 Sep - 01 Oct Air Canada direct
30 Sep - 07 Oct Air Canada direct
29 Sep - 06 Oct Air Canada direct
21 Sep - 01 Oct Air Canada direct
26 Sep - 03 Oct TAP
22 Sep - 29 Sep Lufthansa
23 Sep - 30 Sep Lufthansa
01 Sep - 08 Sep British Airways direct
23 Sep - 30 Sep British Airways direct
18 Sep - 25 Sep Air France
20 Sep - 27 Sep Air France
21 Sep - 28 Sep Air France
18 Sep - 24 Sep Air France
18 Sep - 24 Sep British Airways direct
20 Sep - 27 Sep British Airways direct

Also check the deals for one-way flights from Montreal to London in September.

Skyscanner

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