Cheapest return flights from Helsinki to Bucharest in September from $147

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

Return flights

22 Sep - 03 Oct Norwegian Air Sweden AOC direct
15 Sep - 03 Oct Norwegian Air Sweden AOC direct
22 Sep - 29 Sep Norwegian Air Sweden AOC direct
15 Sep - 29 Sep Norwegian Air Sweden AOC direct
29 Sep - 03 Oct Norwegian Air Sweden AOC direct
02 Sep - 04 Sep Norwegian Air Sweden AOC
08 Sep - 19 Sep Norwegian Air Sweden AOC direct
08 Sep - 12 Sep Norwegian Air Sweden AOC direct
15 Sep - 19 Sep Norwegian Air Sweden AOC direct
22 Sep - 10 Oct Norwegian Air Sweden AOC direct
15 Sep - 22 Sep Norwegian Air Sweden AOC
01 Sep - 08 Sep Norwegian Air Sweden AOC
29 Sep - 13 Oct Norwegian Air Sweden AOC direct
29 Sep - 10 Oct Norwegian Air Sweden AOC direct
22 Sep - 26 Sep Norwegian Air Sweden AOC direct
08 Sep - 15 Sep Norwegian Air Sweden AOC direct
19 Sep - 03 Oct Norwegian Air Sweden AOC direct
28 Sep - 03 Oct airBaltic
26 Sep - 03 Oct Norwegian Air Sweden AOC direct
26 Sep - 13 Oct Norwegian Air Sweden AOC direct

Also check the deals for one-way flights from Helsinki to Bucharest 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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