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

Return flights

26 Apr - 06 May	Avianca
26 Apr - 11 May	Avianca
14 Apr - 27 Apr	Arajet
16 Apr - 27 Apr	Arajet
07 Apr - 21 Apr	British Airways
05 Apr - 29 Apr	British Airways
24 Apr - 03 May	British Airways
08 Apr - 19 Apr	British Airways
06 Apr - 13 Apr	British Airways
05 Apr - 19 Apr	British Airways
26 Apr - 09 May	British Airways
06 Apr - 16 Apr	British Airways
05 Apr - 16 Apr	British Airways
25 Apr - 16 May	KLM
26 Apr - 05 May	Air Europa
07 Apr - 14 Apr	British Airways
27 Apr - 08 May	British Airways
22 Apr - 07 May	KLM
22 Apr - 04 May	KLM
28 Apr - 18 May	TAP

Also check the deals for one-way flights from Sao Paulo 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 Sao Paulo to Istanbul in April from 707€

Return flights