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

Return flights

01 Sep - 01 Oct	Ryanair
01 Sep - 08 Oct	Ryanair
07 Sep - 02 Oct	Pegasus Airlines
09 Sep - 16 Sep	SunExpress
09 Sep - 23 Sep	SunExpress
09 Sep - 04 Oct	SunExpress
22 Sep - 29 Sep	Pegasus Airlines
05 Sep - 06 Oct	Ryanair
11 Sep - 29 Sep	Pegasus Airlines
10 Sep - 10 Oct	Wizz Air Malta
25 Sep - 15 Oct	Pegasus Airlines
15 Sep - 06 Oct	easyJet
21 Sep - 06 Oct	Ryanair
10 Sep - 12 Oct	Wizz Air Malta
14 Sep - 28 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 567€

Return flights