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

Return flights

06 Sep - 19 Sep	Pegasus Airlines
08 Sep - 29 Sep	Pegasus Airlines
04 Sep - 24 Sep	Air India
18 Sep - 14 Oct	Air India
01 Sep - 27 Sep	Pegasus Airlines
20 Sep - 17 Oct	Air India
08 Sep - 05 Oct	Pegasus Airlines
01 Sep - 01 Oct	SunExpress
05 Sep - 26 Sep	IndiGo
12 Sep - 03 Oct	SunExpress
09 Sep - 06 Oct	Pegasus Airlines
07 Sep - 10 Oct	Pegasus Airlines
20 Sep - 27 Sep	Pegasus Airlines
13 Sep - 04 Oct	Ryanair
22 Sep - 08 Oct	Pegasus Airlines
15 Sep - 29 Oct	Pegasus Airlines
06 Sep - 20 Sep	Ryanair
08 Sep - 20 Sep	Pegasus Airlines

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

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 Birmingham to Kathmandu in September from 584€

Return flights