Cheapest return flights from Bucharest to Helsinki in September from $173

Best time to book flights for Bucharest (OTP) to Helsinki (HEL) flights at AirHint

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

Return flights

01 Sep - 15 Sep Norwegian Air Sweden AOC direct
08 Sep - 15 Sep Norwegian Air Sweden AOC direct
01 Sep - 08 Sep Norwegian Air Sweden AOC direct
15 Sep - 29 Sep Norwegian Air Sweden AOC direct
11 Sep - 15 Sep Norwegian Air Sweden AOC
08 Sep - 29 Sep Norwegian Air Sweden AOC direct
01 Sep - 03 Sep airBaltic
01 Sep - 02 Sep airBaltic
11 Sep - 29 Sep Norwegian Air Sweden AOC
01 Sep - 05 Sep Norwegian Air Sweden AOC direct
15 Sep - 02 Oct Norwegian Air Sweden AOC
15 Sep - 03 Oct Norwegian Air Sweden AOC direct
11 Sep - 02 Oct Norwegian Air Sweden AOC
28 Sep - 17 Oct Norwegian Air Sweden AOC
28 Sep - 13 Oct Norwegian Air Sweden AOC
14 Sep - 02 Oct Norwegian Air Sweden AOC
28 Sep - 02 Oct Norwegian Air Sweden AOC
14 Sep - 03 Oct Norwegian Air Sweden AOC
28 Sep - 10 Oct Norwegian Air Sweden AOC
28 Sep - 03 Oct Norwegian Air Sweden AOC

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