Cheapest one-way flights from Kathmandu to Singapore in September from $143

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

One-Way flights

08 Sep Thai AirAsia
19 Sep Thai AirAsia
28 Sep Thai Lion Air
14 Sep Air India
30 Sep Nepal Airlines
08 Sep Singapore Airlines direct
19 Sep Singapore Airlines direct
30 Sep Singapore Airlines direct
14 Sep Singapore Airlines direct
28 Sep Singapore Airlines direct

Also check the deals for return 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.

Book a cheap hotel in Singapore

Cheap car rent in Singapore

Feel free to contact us with any feedback or request another flight research.