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

Return flights

04 Oct - 15 Oct	Air India
09 Oct - 15 Oct	Air India
10 Oct - 13 Oct	Air India
14 Oct - 17 Oct	Air India
08 Oct - 15 Oct	Air India
12 Oct - 26 Oct	SriLankan Airlines
12 Oct - 25 Oct	Air India
07 Oct - 14 Oct	Air India
29 Oct - 25 Nov	SriLankan Airlines
13 Oct - 20 Oct	IndiGo	direct
16 Oct - 20 Oct	Air India
31 Oct - 06 Nov	IndiGo
30 Oct - 19 Nov	IndiGo
31 Oct - 20 Nov	Air India Express
31 Oct - 19 Nov	Air India Express
30 Oct - 20 Nov	Air India Express
31 Oct - 21 Nov	Air India Express
28 Oct - 06 Nov	IndiGo	direct
21 Oct - 13 Nov	IndiGo	direct
29 Oct - 19 Nov	Air India Express

Also check the deals for one-way flights from Mumbai 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 Mumbai to Kathmandu in October from $240

Return flights