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

Return flights

01 May - 08 May	Air India
12 May - 19 May	Air India
20 May - 27 May	SriLankan Airlines
08 May - 24 May	Air India
21 May - 04 Jun	SriLankan Airlines
20 May - 09 Jun	Air India
10 May - 20 May	SriLankan Airlines
20 May - 27 May	IndiGo	direct
10 May - 20 May	IndiGo	direct
20 May - 09 Jun	IndiGo	direct
09 May - 24 May	IndiGo	direct
14 May - 22 May	IndiGo	direct
23 May - 01 Jun	IndiGo	direct
01 May - 08 May	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 165€

Return flights