Cheapest one-way flights from Singapore to Kathmandu in September from $179

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

One-Way flights

02 Sep Scoot Tigerair
15 Sep Scoot Tigerair
01 Sep IndiGo
12 Sep Thai AirAsia
16 Sep Scoot Tigerair
04 Sep IndiGo
18 Sep Air India
20 Sep Air India
14 Sep Air India
26 Sep Air India

Also check the deals for return flights from Singapore to Kathmandu 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 Kathmandu

Cheap car rent in Kathmandu

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