Cheapest return flights from Singapore to Kathmandu in May from $454

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

Return flights

24 May - 07 Jun SriLankan Airlines
23 May - 07 Jun SriLankan Airlines
26 May - 31 May SriLankan Airlines
27 May - 31 May SriLankan Airlines
05 May - 10 May Air India
23 May - 30 May Air India
18 May - 25 May Air India
23 May - 06 Jun Air India
23 May - 01 Jun Air India
01 May - 10 May Air India
28 May - 12 Jun Cathay Pacific
18 May - 25 May Singapore Airlines direct
24 May - 07 Jun Singapore Airlines direct
28 May - 12 Jun Singapore Airlines direct
23 May - 06 Jun Singapore Airlines direct
23 May - 07 Jun Singapore Airlines direct
27 May - 31 May Singapore Airlines direct
23 May - 30 May Singapore Airlines direct
01 May - 10 May Singapore Airlines direct
26 May - 01 Jun Singapore Airlines direct

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

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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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