Cheapest return flights from Kathmandu to Colombo in September from 344€

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

Return flights

01 Sep - 04 Sep Air India
02 Sep - 05 Sep Air India
06 Sep - 14 Sep Air India
14 Sep - 21 Sep Air India
28 Sep - 05 Oct Air India
07 Sep - 15 Sep Air India
21 Sep - 29 Sep Air India
05 Sep - 14 Sep Air India
11 Sep - 14 Sep Air India
08 Sep - 17 Sep IndiGo
20 Sep - 28 Sep Air India
27 Sep - 04 Oct Air India
28 Sep - 05 Oct SriLankan Airlines direct

Also check the deals for one-way flights from Kathmandu to Colombo 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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