Cheapest return flights from Basel to Montreal in September from $543

Best time to book flights for Basel (BSL) to Montreal (YUL) flights at AirHint

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

Return flights

11 Sep - 24 Sep Air Transat direct
06 Sep - 19 Sep Air Transat direct
02 Sep - 24 Sep British Airways
11 Sep - 22 Sep British Airways
13 Sep - 24 Sep British Airways
11 Sep - 23 Sep British Airways
17 Sep - 24 Sep British Airways
23 Sep - 04 Oct British Airways
01 Sep - 10 Sep Air Transat direct
01 Sep - 08 Sep KLM
13 Sep - 24 Sep Air Transat direct

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

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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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