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

Return flights

09 Nov - 12 Nov	Thai AirAsia
06 Nov - 12 Nov	Thai AirAsia
08 Nov - 12 Nov	Thai AirAsia
06 Nov - 10 Nov	Thai AirAsia
09 Nov - 14 Nov	Thai AirAsia
09 Nov - 16 Nov	Thai AirAsia
06 Nov - 14 Nov	Thai AirAsia
06 Nov - 09 Nov	Thai AirAsia
06 Nov - 16 Nov	Thai AirAsia
08 Nov - 10 Nov	Thai AirAsia
29 Nov - 14 Dec	Air India
24 Nov - 05 Dec	Air India
25 Nov - 05 Dec	Air India
23 Nov - 05 Dec	Air India
22 Nov - 05 Dec	Air India
21 Nov - 05 Dec	Air India
29 Nov - 06 Dec	Air India
28 Nov - 06 Dec	Thai Airways
30 Nov - 27 Dec	Air India
29 Nov - 05 Dec	Thai AirAsia

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 $441

Return flights