Cheapest return flights from Helsinki to Kathmandu in September from $954

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

Return flights

01 Sep - 30 Sep Turkish Airlines
17 Sep - 03 Oct Turkish Airlines
18 Sep - 27 Sep Turkish Airlines
26 Sep - 24 Oct Finnair
28 Sep - 26 Oct Turkish Airlines
18 Sep - 26 Sep Finnair
20 Sep - 23 Oct Finnair
15 Sep - 31 Oct Finnair

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

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