Cheapest return flights from Montreal to London in August from $637

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

Return flights

20 Aug - 10 Sep TAP
27 Aug - 10 Sep Air Canada
06 Aug - 21 Sep Air Canada
20 Aug - 12 Sep Air Canada
21 Aug - 11 Sep Air Canada
21 Aug - 10 Sep Air Canada
27 Aug - 10 Sep Lufthansa direct
20 Aug - 10 Sep Lufthansa direct
20 Aug - 12 Sep Lufthansa direct
01 Aug - 26 Sep Lufthansa direct
18 Aug - 31 Aug TAP
24 Aug - 31 Aug Virgin Atlantic
21 Aug - 31 Aug TAP
01 Aug - 20 Aug Porter Airlines (Canada) Ltd
13 Aug - 20 Aug Porter Airlines (Canada) Ltd
20 Aug - 27 Aug Air Canada
19 Aug - 27 Aug Air Canada
12 Aug - 28 Aug Virgin Atlantic
18 Aug - 25 Aug Virgin Atlantic
13 Aug - 28 Aug Virgin Atlantic

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

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

Feel free to contact us with any feedback or request another flight research.