Cheapest return flights from Kathmandu to Singapore in September from $386

AirHint found the following cheapest return flights from Kathmandu (KTM) to Singapore (SIN) in September 2025 (see full year).

Return flights

07 Sep - 11 Sep Air India
05 Sep - 10 Sep IndiGo
26 Sep - 01 Oct IndiGo
30 Sep - 04 Oct Malaysia Airlines
30 Sep - 05 Oct Malaysia Airlines
05 Sep - 10 Sep Singapore Airlines direct
30 Sep - 05 Oct Singapore Airlines direct
30 Sep - 04 Oct Singapore Airlines direct
07 Sep - 11 Sep Singapore Airlines direct

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

Skyscanner

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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