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

Return flights

05 May - 12 May	British Airways
05 May - 28 May	British Airways
21 May - 31 May	British Airways
22 May - 01 Jun	British Airways
25 May - 09 Jun	British Airways
17 May - 24 May	Avianca
04 May - 13 May	Avianca
03 May - 19 May	Avianca
03 May - 17 May	Avianca
05 May - 27 May	Avianca
11 May - 18 May	Avianca
05 May - 16 May	British Airways
15 May - 13 Jun	British Airways
29 May - 08 Jun	Air Europa
20 May - 10 Jun	Air Europa
26 May - 05 Jun	Air Europa
10 May - 18 Jun	British Airways
17 May - 05 Jun	Air Europa
22 May - 07 Jun	Air Europa
29 May - 07 Jun	British Airways

Also check the deals for one-way flights from Sao Paulo 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 Sao Paulo to Istanbul in May from 734€

Return flights