Cheapest return flights from Kathmandu to Colombo in August from $449

AirHint found the following cheapest return flights from Kathmandu (KTM) to Colombo (CMB) in August 2026 (see full year).

Return flights

03 Aug - 09 Aug Air India
10 Aug - 23 Aug Air India
03 Aug - 09 Aug SriLankan Airlines direct
10 Aug - 23 Aug SriLankan Airlines direct

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

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