Cheapest one-way flights from Colombo to Kathmandu in December from $203

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

One-Way flights

17 Dec Air India
02 Dec Air India
08 Dec Air India
11 Dec Air India
22 Dec Air India
25 Dec Air India
11 Dec SriLankan Airlines direct
22 Dec SriLankan Airlines direct
25 Dec SriLankan Airlines direct
03 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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