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

Return flights

20 Oct - 22 Oct	Air India
29 Oct - 10 Nov	Air India
08 Oct - 12 Oct	IndiGo
18 Oct - 15 Nov	Thai Lion Air
25 Oct - 05 Nov	China Southern
21 Oct - 19 Nov	China Southern
15 Oct - 17 Nov	China Southern
27 Oct - 08 Nov	China Southern
25 Oct - 26 Nov	Air India
29 Oct - 09 Nov	Air India
24 Oct - 27 Oct	China Southern
08 Oct - 15 Oct	Thai AirAsia
26 Oct - 26 Nov	Air India
29 Oct - 05 Nov	Air India
16 Oct - 21 Oct	Thai Airways
02 Oct - 29 Oct	AirAsia
13 Oct - 16 Oct	Thai Airways
03 Oct - 19 Oct	AirAsia
09 Oct - 18 Oct	Thai Airways
15 Oct - 19 Oct	Thai Airways

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

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 October from 383€

Return flights