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

Return flights

01 May - 22 May	Singapore Airlines
13 May - 27 May	Singapore Airlines
01 May - 29 May	Singapore Airlines
26 May - 09 Jun	Asiana Airlines
10 May - 19 Jun	Singapore Airlines
02 May - 09 May	Etihad Airways
07 May - 22 Jun	Qatar Airways
09 May - 26 Jun	Thai Airways
30 May - 20 Jun	Thai Airways
09 May - 23 May	Qantas

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

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 Sydney to Istanbul in May from 929€

Return flights