Cheapest one-way flights from Colombo to Kathmandu in September from 174€

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

One-Way flights

08 Sep IndiGo
03 Sep Air India
04 Sep Air India
11 Sep Air India
05 Sep Air India
12 Sep Air India
01 Sep IndiGo
24 Sep Thai AirAsia
25 Sep SriLankan Airlines
08 Sep SriLankan Airlines direct

Also check the deals for return flights from Colombo 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.