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

Return flights

15 Apr - 18 Apr	Aegean Airlines
10 Apr - 13 Apr	Aegean Airlines
15 Apr - 20 Apr	Aegean Airlines
15 Apr - 20 Apr	Turkish Airlines	direct
15 Apr - 18 Apr	Turkish Airlines	direct
10 Apr - 13 Apr	Turkish Airlines	direct
30 Apr - 30 Apr	Turkish Airlines
30 Apr - 30 Apr	Turkish Airlines	direct

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

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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Cheapest return flights from Istanbul to Vienna in April from $226

Return flights