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

Return flights

24 Sep - 01 Oct	Japan Airlines
30 Sep - 07 Oct	WestJet
23 Sep - 30 Sep	ANA
25 Sep - 02 Oct	WestJet
22 Sep - 29 Sep	WestJet
29 Sep - 06 Oct	WestJet
26 Sep - 03 Oct	Porter Airlines (Canada) Ltd
28 Sep - 17 Oct	WestJet
21 Sep - 28 Sep	Porter Airlines (Canada) Ltd
28 Sep - 05 Oct	Porter Airlines (Canada) Ltd
27 Sep - 04 Oct	Porter Airlines (Canada) Ltd

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

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 Taipei in September from 874€

Return flights