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

Return flights

10 Oct - 18 Oct	Air Transat	direct
13 Oct - 20 Oct	Air Transat
02 Oct - 10 Oct	Air Transat
01 Oct - 08 Oct	TAP
17 Oct - 24 Oct	Air Transat
06 Oct - 13 Oct	FrenchBee
03 Oct - 10 Oct	Air Transat
12 Oct - 19 Oct	WestJet
05 Oct - 12 Oct	FrenchBee
07 Oct - 14 Oct	Lufthansa
22 Oct - 05 Nov	Lufthansa
17 Oct - 08 Nov	Air Transat
21 Oct - 04 Nov	Lufthansa
28 Oct - 04 Nov	Lufthansa
27 Oct - 03 Nov	Air Transat
15 Oct - 09 Nov	Lufthansa
28 Oct - 18 Nov	Lufthansa
30 Oct - 06 Nov	Lufthansa
26 Oct - 02 Nov	Lufthansa
25 Oct - 01 Nov	Air Transat

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

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 October from 496€

Return flights