AirHint found the following cheapest return flights from Colombo (CMB) to Kathmandu (KTM) in May 2026 (see full year).
Return flights
| 14 May - 18 May | Air India | ||
| 18 May - 27 May | Air India | ||
| 07 May - 14 May | Air India | ||
| 07 May - 14 May | SriLankan Airlines | direct | |
| 18 May - 27 May | SriLankan Airlines | direct |
Also check the deals for one-way flights from Colombo to Kathmandu 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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