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

Return flights

07 Sep - 12 Sep	Cathay Pacific
02 Sep - 04 Oct	Cathay Pacific
01 Sep - 17 Sep	Cathay Pacific
20 Sep - 11 Oct	Etihad Airways
13 Sep - 17 Sep	Cathay Pacific
21 Sep - 10 Oct	Etihad Airways
22 Sep - 10 Oct	Norse Atlantic Airways
22 Sep - 09 Oct	Air India
20 Sep - 10 Oct	Air India

Also check the deals for one-way flights from New York 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 New York to Kathmandu in September from $801

Return flights