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

Return flights

09 May - 27 May	SriLankan Airlines
08 May - 27 May	Cathay Pacific
09 May - 26 May	Cathay Pacific
07 May - 27 May	Cathay Pacific
18 May - 25 May	Malaysia Airlines
22 May - 31 May	Malaysia Airlines
18 May - 25 May	Singapore Airlines	direct
07 May - 27 May	Singapore Airlines	direct
22 May - 31 May	Singapore Airlines	direct
09 May - 26 May	Singapore Airlines	direct

Also check the deals for one-way flights from Singapore 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 Singapore to Kathmandu in May from 330€

Return flights