Cheapest return flights from Istanbul to Helsinki in May from 155€

AirHint found the following cheapest return flights from Istanbul (IST) to Helsinki (HEL) in May 2026 (see full year).

Return flights

08 May - 11 May Lufthansa
05 May - 12 May Lufthansa
13 May - 16 May Lufthansa
20 May - 28 May Lufthansa
02 May - 10 May Lufthansa
05 May - 09 May Lufthansa
14 May - 19 May Lufthansa
22 May - 28 May Lufthansa
30 May - 31 May Lufthansa
27 May - 31 May Lufthansa
24 May - 01 Jun airBaltic
24 May - 01 Jun Turkish Airlines direct

Also check the deals for one-way flights from Istanbul to Helsinki in May.

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