AirHint found the following cheapest return flights from Sao Paulo (GRU) to Zurich (ZRH) in September 2025 (see full year).

Return flights

30 Sep - 29 Oct	British Airways
23 Sep - 29 Oct	British Airways
16 Sep - 23 Sep	British Airways
24 Sep - 30 Sep	KLM
22 Sep - 29 Sep	Air France
25 Sep - 28 Sep	KLM
25 Sep - 06 Oct	Air Europa
16 Sep - 29 Sep	Avianca
01 Sep - 08 Sep	Copa
15 Sep - 29 Sep	British Airways
16 Sep - 01 Oct	British Airways
11 Sep - 18 Sep	Avianca
15 Sep - 30 Sep	Ethiopian Airlines
09 Sep - 15 Sep	Ethiopian Airlines
08 Sep - 08 Oct	Ethiopian Airlines
26 Sep - 03 Oct	Air Europa
28 Sep - 04 Oct	Air Europa
19 Sep - 07 Oct	Air Europa
21 Sep - 26 Oct	KLM
16 Sep - 14 Oct	KLM

Also check the deals for one-way flights from Sao Paulo to Zurich in September.

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 Zurich in September from 716€

Return flights