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

Return flights

31 Dec - 24 Jan	SWISS
30 Dec - 25 Jan	SWISS
07 Dec - 11 Dec	Norse Atlantic Airways (UK)
07 Dec - 21 Jan	Norse Atlantic Airways (UK)
30 Dec - 24 Jan	SWISS
09 Dec - 16 Dec	Cathay Pacific
10 Dec - 17 Dec	Lufthansa
11 Dec - 30 Jan	Air Serbia
29 Dec - 25 Jan	Etihad Airways
30 Dec - 16 Jan	SWISS
31 Dec - 16 Jan	Etihad Airways
29 Dec - 24 Jan	Etihad Airways
10 Dec - 14 Jan	Norse Atlantic Airways (UK)
15 Dec - 22 Dec	Norse Atlantic Airways
11 Dec - 28 Dec	Air Serbia
13 Dec - 21 Dec	Air Europa
25 Dec - 28 Dec	Air India

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 905€

Return flights