Cheapest return flights from Singapore to Kathmandu in December from $462

Best time to book flights for Singapore (SIN) to Kathmandu (KTM) flights at AirHint

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

Return flights

23 Dec - 30 Dec Air India
02 Dec - 15 Dec Thai AirAsia
22 Dec - 29 Dec Air India
27 Dec - 12 Jan Thai AirAsia
02 Dec - 07 Dec Thai AirAsia
02 Dec - 10 Dec Thai AirAsia
02 Dec - 19 Dec Thai AirAsia
12 Dec - 19 Dec IndiGo
23 Dec - 12 Jan Thai AirAsia
27 Dec - 29 Dec Thai AirAsia
23 Dec - 29 Dec Thai AirAsia
23 Dec - 28 Dec Thai AirAsia

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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