Cheapest one-way flights from Kathmandu to Colombo in December from $311

Best time to book flights for Kathmandu (KTM) to Colombo (CMB) flights at AirHint

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

One-Way flights

01 Dec Air India
16 Dec Air India
10 Dec Air India
08 Dec flydubai
09 Dec flydubai
10 Dec SriLankan Airlines direct

Also check the deals for return flights from Kathmandu to Colombo 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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