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

Return flights

30 May - 19 Jun	AirAsia X
19 May - 20 May	ANA
17 May - 13 Jun	ANA
19 May - 13 Jun	ANA
15 May - 26 Jun	Singapore Airlines
14 May - 18 May	AirAsia X
13 May - 29 May	China Southern
06 May - 27 May	China Southern
01 May - 31 May	Singapore Airlines
29 May - 19 Jun	Asiana Airlines
14 May - 20 May	AirAsia X
24 May - 08 Jun	AirAsia X
24 May - 10 Jun	AirAsia X
30 May - 08 Jun	AirAsia X
30 May - 10 Jun	AirAsia X
16 May - 18 May	Singapore Airlines
23 May - 30 May	Condor

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.

Book a cheap hotel in Istanbul

Cheap car rent in Istanbul

Cheapest return flights from Sydney to Istanbul in May from $1070

Return flights