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

Return flights

29 Dec - 25 Jan	Cathay Pacific
30 Dec - 25 Jan	Cathay Pacific
31 Dec - 25 Jan	Cathay Pacific
11 Dec - 01 Jan	Turkish Airlines
15 Dec - 22 Dec	Cathay Pacific
16 Dec - 14 Jan	Cathay Pacific
22 Dec - 22 Jan	Cathay Pacific
04 Dec - 04 Jan	Turkish Airlines
17 Dec - 19 Jan	Cathay Pacific
17 Dec - 20 Jan	Cathay Pacific
24 Dec - 31 Dec	IndiGo
11 Dec - 08 Jan	Air India
05 Dec - 13 Dec	Emirates

Also check the deals for one-way flights from New York to Kathmandu in December.

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 December from 719€

Return flights