Cheapest return flights from Singapore to Kathmandu in May from $363

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

Return flights

10 May - 31 May Thai Lion Air
09 May - 14 May SriLankan Airlines
23 May - 31 May SriLankan Airlines
27 May - 07 Jun SriLankan Airlines
24 May - 07 Jun SriLankan Airlines
05 May - 10 May Air India
01 May - 10 May Air India
23 May - 06 Jun Air India
09 May - 16 May Air India
07 May - 11 May Air India
21 May - 28 May Air India
23 May - 30 May Air India
15 May - 13 Jun Air India
25 May - 09 Jun Air India
28 May - 12 Jun Cathay Pacific
24 May - 07 Jun Singapore Airlines direct
27 May - 07 Jun Singapore Airlines direct
15 May - 13 Jun Singapore Airlines direct
21 May - 28 May Singapore Airlines direct
28 May - 12 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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