Cheapest return YUL–KTM flights, September

AirHint found the following cheapest return flights from Montreal (YUL) to Kathmandu (KTM) in September 2026 (see full year).

Return flights

01 Sep - 08 Sep Porter Airlines (Canada) Ltd
15 Sep - 22 Sep Porter Airlines (Canada) Ltd
08 Sep - 15 Sep Porter Airlines (Canada) Ltd
29 Sep - 06 Oct Porter Airlines (Canada) Ltd
22 Sep - 29 Sep Porter Airlines (Canada) Ltd
22 Sep - 07 Oct Porter Airlines (Canada) Ltd
28 Sep - 05 Oct Porter Airlines (Canada) Ltd
23 Sep - 07 Oct Porter Airlines (Canada) Ltd
21 Sep - 28 Sep Porter Airlines (Canada) Ltd
14 Sep - 21 Sep Qatar Airways
20 Sep - 27 Sep Qatar Airways
13 Sep - 20 Sep Qatar Airways
27 Sep - 04 Oct Qatar Airways
08 Sep - 23 Sep Emirates
02 Sep - 09 Sep Emirates
25 Sep - 02 Oct Emirates
26 Sep - 03 Oct Emirates
24 Sep - 01 Oct Emirates
30 Sep - 07 Oct Emirates

Also check the deals for one-way flights from Montreal to Kathmandu 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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