AirHint found the following cheapest one-way flights from Kathmandu (KTM) to Colombo (CMB) in December 2025 (see full year).
One-Way flights
| 04 Dec | Air India Express | ||
| 11 Dec | Air India | ||
| 08 Dec | Air India | ||
| 07 Dec | Air India | ||
| 16 Dec | Air India Express | ||
| 13 Dec | Air India | ||
| 05 Dec | Air India | ||
| 31 Dec | Thai AirAsia | ||
| 24 Dec | Thai AirAsia | ||
| 23 Dec | Air India Express |
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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