Cheapest return flights from Kolkata to Kathmandu in September from 185€

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

Return flights

04 Sep - 14 Sep Air India
09 Sep - 16 Sep Air India
12 Sep - 17 Sep Air India
04 Sep - 04 Sep Air India
19 Sep - 06 Oct Air India
28 Sep - 05 Oct Air India
25 Sep - 02 Oct IndiGo
25 Sep - 03 Oct Air India
30 Sep - 05 Oct Air India
29 Sep - 05 Oct Air India
27 Sep - 30 Sep Air India
27 Sep - 04 Oct Air India
22 Sep - 25 Sep flydubai

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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