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

Return flights

06 Dec - 12 Dec	Kuwait Airways
11 Dec - 17 Jan	Lufthansa
10 Dec - 10 Jan	Turkish Airlines
24 Dec - 10 Jan	Cathay Pacific
13 Dec - 28 Dec	Turkish Airlines
25 Dec - 11 Jan	Turkish Airlines
10 Dec - 12 Jan	Emirates
20 Dec - 26 Dec	Kuwait Airways

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 845€

Return flights