AirHint found the following cheapest return flights from Dublin (DUB) to Sao Paulo (GRU) in September 2026 (see full year).

Return flights

15 Sep - 28 Sep	Delta
02 Sep - 23 Sep	Delta
16 Sep - 25 Sep	Delta
23 Sep - 30 Sep	Delta
03 Sep - 25 Sep	Delta
03 Sep - 27 Sep	Delta
03 Sep - 23 Sep	Delta
07 Sep - 16 Sep	Delta
02 Sep - 29 Sep	Delta
23 Sep - 14 Oct	Delta
22 Sep - 26 Oct	Delta
29 Sep - 20 Oct	British Airways
05 Sep - 28 Sep	Delta
28 Sep - 18 Oct	Delta
13 Sep - 04 Oct	Delta
14 Sep - 05 Oct	Delta
21 Sep - 12 Oct	Delta
22 Sep - 13 Oct	Delta
24 Sep - 15 Oct	Delta
25 Sep - 16 Oct	Delta

Also check the deals for one-way flights from Dublin to Sao Paulo 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 Dublin to Sao Paulo in September from 627€

Return flights