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

Return flights

29 Dec - 20 Jan	Air India
27 Dec - 31 Jan	Air India
27 Dec - 29 Jan	Air India
27 Dec - 23 Jan	Air India
01 Dec - 14 Dec	Air India
29 Dec - 04 Jan	Air China
25 Dec - 17 Jan	Air India
01 Dec - 10 Jan	Air India
25 Dec - 16 Jan	Air India
26 Dec - 16 Jan	Air India
18 Dec - 29 Dec	Qatar Airways
26 Dec - 06 Jan	Kuwait Airways
19 Dec - 29 Dec	Turkish Airlines
20 Dec - 31 Dec	Air India

Also check the deals for one-way flights from Paris 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 Paris to Kathmandu in December from 554€

Return flights