Cheapest return flights from Helsinki to Istanbul in April from 128€

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

Return flights

18 Apr - 27 Apr Pegasus Airlines
13 Apr - 21 Apr Pegasus Airlines direct
18 Apr - 27 Apr Pegasus Airlines direct
18 Apr - 21 Apr Pegasus Airlines direct
19 Apr - 27 Apr Pegasus Airlines direct
21 Apr - 28 Apr Pegasus Airlines direct
11 Apr - 16 Apr Pegasus Airlines direct
15 Apr - 22 Apr Norwegian Air Sweden AOC
14 Apr - 20 Apr Pegasus Airlines
21 Apr - 26 Apr Ryanair
25 Apr - 02 May Lufthansa
24 Apr - 01 May Lufthansa
29 Apr - 04 May Norwegian Air Sweden AOC
29 Apr - 04 May Pegasus Airlines direct
26 Apr - 04 May Ryanair
24 Apr - 01 May Pegasus Airlines direct
26 Apr - 04 May Pegasus Airlines direct
30 Apr - 04 May Pegasus Airlines direct
25 Apr - 02 May Pegasus Airlines direct
30 Apr - 03 May Pegasus Airlines direct

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

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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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