Cheapest one-way flights from Colombo to Kathmandu in September from 175€

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

One-Way flights

06 Sep Air India
17 Sep Air India
07 Sep Air India
14 Sep Air India
08 Sep Air India
11 Sep Air India
07 Sep SriLankan Airlines direct
14 Sep SriLankan Airlines direct
01 Sep SriLankan Airlines direct
29 Sep Thai AirAsia

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.

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