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

Return flights

24 Nov - 03 Dec	Air India
30 Nov - 08 Dec	Thai AirAsia
09 Nov - 16 Nov	Thai Lion Air
07 Nov - 23 Nov	Air India
09 Nov - 20 Nov	Air India
15 Nov - 20 Nov	Air India
15 Nov - 19 Nov	Air India
06 Nov - 08 Nov	Air India
06 Nov - 07 Nov	Air India
09 Nov - 02 Dec	Air India
18 Nov - 30 Dec	Thai Airways
15 Nov - 24 Nov	Air India
27 Nov - 02 Dec	Air India
28 Nov - 13 Dec	Air India
05 Nov - 13 Nov	SriLankan Airlines
30 Nov - 09 Dec	IndiGo
29 Nov - 06 Dec	IndiGo
07 Nov - 14 Nov	IndiGo
29 Nov - 07 Dec	Cathay Pacific
29 Nov - 08 Dec	China Southern

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

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 Singapore to Kathmandu in November from $455

Return flights