AirHint found the following cheapest return flights from Kolkata (CCU) to Thimphu (PBH) in October 2025 (see full year).

Return flights

17 Oct - 21 Oct	Bhutan Airlines	direct
31 Oct - 01 Nov	Bhutan Airlines	direct
31 Oct - 02 Nov	Bhutan Airlines	direct
05 Oct - 10 Oct	Air India Express
23 Oct - 26 Oct	Flexflight	direct
19 Oct - 25 Oct	Biman Bangladesh Airlines
06 Oct - 14 Oct	Hahn Air Technologies	direct
19 Oct - 25 Oct	Flexflight	direct
01 Oct - 07 Oct	Druk Air
03 Oct - 07 Oct	Druk Air

Also check the deals for one-way flights from Kolkata to Thimphu in October.

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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Cheapest return flights from Kolkata to Thimphu in October from 359€

Return flights