Cheapest return flights from Colombo to Kathmandu in April from $422

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

AirHint found the following cheapest return flights from Colombo (CMB) to Kathmandu (KTM) in April 2025 (see full year).

Return flights

15 Apr - 28 Apr Air India
24 Apr - 28 Apr Air India
27 Apr - 12 May Air India
06 Apr - 13 Apr SriLankan Airlines
25 Apr - 10 May Air India
20 Apr - 20 May SriLankan Airlines
25 Apr - 29 Apr Air India
20 Apr - 21 May SriLankan Airlines
08 Apr - 14 Apr Air India
17 Apr - 20 May SriLankan Airlines
20 Apr - 20 May SriLankan Airlines direct
17 Apr - 20 May SriLankan Airlines direct
18 Apr - 20 May Air India
24 Apr - 28 Apr SriLankan Airlines direct
15 Apr - 28 Apr SriLankan Airlines direct
27 Apr - 12 May SriLankan Airlines direct
06 Apr - 13 Apr SriLankan Airlines direct
20 Apr - 21 May SriLankan Airlines direct
08 Apr - 14 Apr SriLankan Airlines direct

Also check the deals for one-way flights from Colombo to Kathmandu in April.

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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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