Cheapest one-way flights from Singapore to Kathmandu in September from $165

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

One-Way flights

01 Sep Thai AirAsia
27 Sep Scoot Tigerair
05 Sep IndiGo
21 Sep Thai AirAsia
29 Sep Thai AirAsia
25 Sep Thai AirAsia
19 Sep Jetstar Asia
23 Sep Scoot Tigerair
30 Sep SriLankan Airlines
14 Sep SriLankan Airlines

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.