Cheapest return BCN–KTM flights, September

AirHint found the following cheapest return flights from Barcelona (BCN) to Kathmandu (KTM) in September 2026 (see full year).

Return flights

04 Sep - 14 Sep Air Serbia
22 Sep - 12 Oct Air Serbia
03 Sep - 14 Sep Wizz Air
14 Sep - 24 Sep Air Serbia
11 Sep - 26 Sep Ryanair
09 Sep - 24 Sep Wizz Air UK
07 Sep - 29 Sep Wizz Air
09 Sep - 22 Sep Wizz Air
05 Sep - 25 Sep Vueling Airlines
14 Sep - 15 Sep Vueling Airlines
01 Sep - 15 Sep Vueling Airlines
18 Sep - 08 Oct Ryanair
20 Sep - 10 Oct Ryanair
12 Sep - 01 Oct Wizz Air Malta
13 Sep - 01 Oct Ryanair
29 Sep - 20 Oct Vueling Airlines
30 Sep - 20 Oct Ryanair

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

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