AirHint found the following cheapest return flights from Mumbai (BOM) to Kathmandu (KTM) in May 2026 (see full year).

Return flights

11 May - 14 May	SriLankan Airlines
12 May - 21 May	SriLankan Airlines
04 May - 07 May	SriLankan Airlines
02 May - 13 May	Air India
11 May - 18 May	Air India
07 May - 14 May	SriLankan Airlines
26 May - 06 Jun	IndiGo	direct
06 May - 16 May	SriLankan Airlines
04 May - 07 May	IndiGo	direct
19 May - 25 May	IndiGo	direct
09 May - 16 May	IndiGo	direct
23 May - 01 Jun	IndiGo	direct
29 May - 04 Jun	Air India
29 May - 12 Jun	Air India
29 May - 04 Jun	IndiGo	direct
29 May - 12 Jun	IndiGo	direct

Also check the deals for one-way flights from Mumbai to Kathmandu in May.

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 May from 140€

Return flights