AirHint found the following cheapest return flights from Montreal (YUL) to Basel (BSL) in August 2026 (see full year).

Return flights

02 Aug - 09 Aug	Air Transat
04 Aug - 11 Aug	Air Transat
11 Aug - 18 Aug	Air Transat
01 Aug - 08 Aug	Air Transat
05 Aug - 12 Aug	Air Transat
03 Aug - 10 Aug	Air Transat
06 Aug - 13 Aug	Air Transat
31 Aug - 07 Sep	Air France
08 Aug - 15 Aug	Air Transat
24 Aug - 31 Aug	Air France
25 Aug - 01 Sep	Air France
26 Aug - 02 Sep	Air France
19 Aug - 26 Aug	Lufthansa
27 Aug - 03 Sep	Air France
29 Aug - 05 Sep	Air France
28 Aug - 04 Sep	Air France
30 Aug - 06 Sep	Air France

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

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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Cheapest return flights from Montreal to Basel in August from 721€

Return flights