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Cheapest one-way flights from Colombo (CMB) to Kathmandu (KTM), September

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Dates, airline, and price
Dates	Airline	Price
04 Sep	Air India
17 Sep	Air India
09 Sep	IndiGo
08 Sep	IndiGo
05 Sep	IndiGo
21 Sep	SriLankan Airlines Direct Flight
06 Sep	SriLankan Airlines Direct Flight
01 Sep	IndiGo

deals for return flights from Colombo to Kathmandu in September.

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Updated Jul 11, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest one-way flights from Colombo (CMB) to Kathmandu (KTM), September

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