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

Return flights

25 Apr - 29 Apr	AirAsia X
21 Apr - 29 Apr	AirAsia X
05 Apr - 08 Apr	AirAsia X
05 Apr - 20 Apr	AirAsia X
22 Apr - 28 May	Qatar Airways
13 Apr - 30 May	Qatar Airways
01 Apr - 08 Apr	Virgin Australia
01 Apr - 10 Apr	Qatar Airways
03 Apr - 20 Apr	Qatar Airways
06 Apr - 16 Apr	Qatar Airways
03 Apr - 24 Apr	Qatar Airways
05 Apr - 11 Apr	Qatar Airways

Also check the deals for one-way flights from Sydney to Istanbul 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 Sydney to Istanbul in April from 880€

Return flights