Cheapest return flights from Singapore to Kathmandu in December from $484

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

Return flights

25 Dec - 01 Jan Cathay Pacific
25 Dec - 05 Jan Cathay Pacific
26 Dec - 26 Jan Thai Airways
20 Dec - 11 Jan Thai Airways
27 Dec - 16 Jan Thai Airways
19 Dec - 06 Jan Thai Airways
19 Dec - 05 Jan Cathay Pacific
20 Dec - 25 Dec Thai Airways
01 Dec - 10 Dec Air India
24 Dec - 28 Dec SriLankan Airlines
28 Dec - 03 Jan Thai Airways
24 Dec - 02 Jan Thai Airways
17 Dec - 27 Dec Thai Airways
19 Dec - 30 Dec Thai Airways
22 Dec - 03 Jan Thai Airways
08 Dec - 15 Dec IndiGo
11 Dec - 25 Dec IndiGo
17 Dec - 27 Dec Singapore Airlines direct
20 Dec - 25 Dec Singapore Airlines direct
19 Dec - 30 Dec Singapore Airlines direct

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

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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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