Cheapest return flights from Helsinki to Istanbul in May from $152

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

Return flights

15 May - 21 May Pegasus Airlines direct
15 May - 22 May Pegasus Airlines direct
05 May - 10 May Pegasus Airlines direct
16 May - 19 May Pegasus Airlines direct
16 May - 20 May Pegasus Airlines direct
15 May - 18 May Pegasus Airlines direct
12 May - 19 May Ryanair
12 May - 18 May Ryanair
03 May - 13 May Ryanair
13 May - 19 May Pegasus Airlines direct
24 May - 02 Jun Lufthansa
21 May - 06 Jun Ryanair
29 May - 21 Jun airBaltic
30 May - 09 Jun Lufthansa
29 May - 21 Jun Pegasus Airlines direct
30 May - 24 Jun Lufthansa
30 May - 24 Jun Pegasus Airlines direct
30 May - 09 Jun Pegasus Airlines direct

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

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