AirHint found the following cheapest return flights from Paris (CDG) to Kathmandu (KTM) in September 2025 (see full year).

Return flights

01 Sep - 14 Sep	Etihad Airways
12 Sep - 21 Sep	Air India
09 Sep - 20 Sep	Air India
05 Sep - 25 Sep	Air India
08 Sep - 30 Sep	Air India
08 Sep - 29 Sep	Air India
04 Sep - 19 Sep	Air India
05 Sep - 15 Sep	Air India
02 Sep - 08 Sep	Air India
03 Sep - 14 Sep	Air India
08 Sep - 02 Oct	Air India
14 Sep - 03 Oct	Air India
21 Sep - 15 Oct	Etihad Airways
14 Sep - 10 Oct	Etihad Airways
16 Sep - 22 Oct	Etihad Airways
10 Sep - 09 Oct	SriLankan Airlines
26 Sep - 15 Oct	easyJet
20 Sep - 04 Oct	ITA Airways
28 Sep - 26 Oct	AJet
26 Sep - 11 Oct	Etihad Airways

Also check the deals for one-way flights from Paris to Kathmandu 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 Paris to Kathmandu in September from 565€

Return flights