Cheapest return flights from Singapore to Kathmandu in December from $436

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

Return flights

03 Dec - 08 Dec IndiGo
31 Dec - 11 Jan SriLankan Airlines
10 Dec - 21 Dec Air India
10 Dec - 17 Dec Air India
08 Dec - 15 Dec Air India
08 Dec - 12 Dec Air India
16 Dec - 20 Dec Air India
20 Dec - 28 Dec Air India
04 Dec - 19 Dec Air India
04 Dec - 20 Dec Air India
08 Dec - 17 Dec Air India
27 Dec - 06 Jan Air India
28 Dec - 08 Jan Air India
18 Dec - 09 Jan Air India
27 Dec - 04 Jan Air India
31 Dec - 04 Jan Air India
24 Dec - 04 Jan Air India
19 Dec - 09 Jan Air India
25 Dec - 03 Jan Air India
28 Dec - 04 Jan Air India

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

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