Cheapest return flights from Helsinki to Kathmandu in September from $738

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

Return flights

12 Sep - 07 Oct Pegasus Airlines
01 Sep - 20 Sep Pegasus Airlines
12 Sep - 06 Oct Pegasus Airlines
01 Sep - 26 Sep Pegasus Airlines
05 Sep - 21 Sep Norwegian Air Sweden AOC
11 Sep - 24 Sep Pegasus Airlines
02 Sep - 19 Sep Pegasus Airlines
08 Sep - 22 Sep Pegasus Airlines
04 Sep - 20 Sep IndiGo
09 Sep - 10 Oct Pegasus Airlines
28 Sep - 17 Oct Pegasus Airlines
03 Sep - 07 Oct Norwegian
01 Sep - 07 Sep Pegasus Airlines
22 Sep - 23 Sep Scandinavian Airlines
03 Sep - 19 Sep Norwegian
07 Sep - 04 Oct Pegasus Airlines
07 Sep - 05 Oct Pegasus Airlines
23 Sep - 28 Oct Scandinavian Airlines
23 Sep - 31 Oct Scandinavian Airlines
25 Sep - 25 Oct Norwegian Air Sweden AOC

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

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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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