Cheapest one-way flights from Colombo to Kathmandu in December from $254

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

One-Way flights

28 Dec Air India
07 Dec Air India
28 Dec SriLankan Airlines direct
07 Dec SriLankan Airlines direct

Also check the deals for return flights from Colombo to Kathmandu in December.

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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