Cheapest return flights from Kolkata to Kathmandu in September from 219€

AirHint found the following cheapest return flights from Kolkata (CCU) to Kathmandu (KTM) in September 2025 (see full year).

Return flights

01 Sep - 13 Sep Air India
09 Sep - 14 Sep Air India
03 Sep - 08 Sep Air India
10 Sep - 11 Sep Air India
05 Sep - 08 Sep Air India
09 Sep - 20 Sep Air India
15 Sep - 19 Sep Air India
12 Sep - 12 Sep Air India
29 Sep - 04 Oct IndiGo

Also check the deals for one-way flights from Kolkata to Kathmandu in September.

Skyscanner

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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