Cheapest one-way flights from Colombo to Kathmandu in December from $231

AirHint found the following cheapest one-way flights from Colombo (CMB) to Kathmandu (KTM) in December 2026 (see full year).

One-Way flights

11 Dec Air India
25 Dec SriLankan Airlines
10 Dec SriLankan Airlines
24 Dec SriLankan Airlines direct
10 Dec SriLankan Airlines direct

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

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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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