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

Return flights

05 May - 19 May	British Airways
01 May - 15 May	British Airways
10 May - 17 May	British Airways
01 May - 08 May	British Airways
31 May - 09 Jun	British Airways
29 May - 06 Jun	British Airways
07 May - 05 Jun	British Airways
07 May - 12 May	Air Europa
18 May - 04 Jun	Air Europa
04 May - 13 May	Air Europa
11 May - 17 May	Air Europa
04 May - 16 May	Air Europa
14 May - 26 May	GOL Linhas Aéreas
12 May - 19 May	Air France
07 May - 05 Jun	Turkish Airlines	direct
18 May - 04 Jun	Turkish Airlines	direct

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.

Book a cheap hotel in Istanbul

Cheap car rent in Istanbul

Cheapest return flights from Sao Paulo to Istanbul in May from $841

Return flights