AirHint found the following cheapest return flights from Kathmandu (KTM) to Singapore (SIN) in January 2026 (see full year).

Return flights

19 Jan - 25 Jan	Thai Lion Air
11 Jan - 14 Jan	IndiGo
18 Jan - 28 Jan	IndiGo
25 Jan - 28 Jan	IndiGo
22 Jan - 29 Jan	Air India
27 Jan - 03 Feb	IndiGo
18 Jan - 22 Jan	IndiGo
28 Jan - 02 Feb	IndiGo
05 Jan - 19 Jan	Nepal Airlines
05 Jan - 11 Jan	Nepal Airlines
15 Jan - 21 Jan	IndiGo
16 Jan - 22 Jan	IndiGo
28 Jan - 03 Feb	Thai AirAsia
28 Jan - 02 Feb	Singapore Airlines	direct
27 Jan - 03 Feb	Singapore Airlines	direct
28 Jan - 03 Feb	Singapore Airlines	direct

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

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 Kathmandu to Singapore in January from $359

Return flights