AirHint found the following cheapest one-way flights from Kathmandu (KTM) to Colombo (CMB) in May 2026 (see full year).
One-Way flights
| 01 May | Air India | ||
| 18 May | Nepal Airlines | ||
| 30 May | Air India | ||
| 20 May | IndiGo | ||
| 07 May | Air India | ||
| 07 May | SriLankan Airlines | direct | |
| 18 May | SriLankan Airlines | direct | |
| 20 May | SriLankan Airlines | direct |
Also check the deals for return flights from Kathmandu to Colombo in May.
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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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