AirHint found the following cheapest return flights from Hong Kong (HKG) to Kathmandu (KTM) in December 2025 (see full year).

Return flights

07 Dec - 21 Dec	Air China
04 Dec - 19 Dec	Air China
27 Dec - 03 Jan	Thai Airways
13 Dec - 03 Jan	Thai Airways
21 Dec - 30 Dec	Thai Airways
24 Dec - 03 Jan	Thai Airways
01 Dec - 31 Jan	Thai Airways
27 Dec - 03 Jan	Cathay Pacific	direct
07 Dec - 21 Dec	Cathay Pacific	direct
13 Dec - 03 Jan	Cathay Pacific	direct
04 Dec - 19 Dec	Cathay Pacific	direct
21 Dec - 30 Dec	Cathay Pacific	direct
01 Dec - 31 Jan	Cathay Pacific	direct
24 Dec - 03 Jan	Cathay Pacific	direct

Also check the deals for one-way flights from Hong Kong 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 Hong Kong to Kathmandu in December from $554

Return flights