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

Return flights

15 Sep - 22 Sep	United
15 Sep - 25 Sep	United
15 Sep - 23 Sep	United
16 Sep - 07 Oct	United
29 Sep - 07 Oct	United
30 Sep - 07 Oct	United
27 Sep - 04 Oct	TAP
02 Sep - 25 Sep	United
30 Sep - 08 Oct	United
30 Sep - 09 Oct	United
02 Sep - 12 Sep	United
12 Sep - 18 Sep	United
09 Sep - 18 Sep	United
02 Sep - 14 Sep	British Airways
10 Sep - 17 Sep	United
14 Sep - 22 Sep	United
29 Sep - 14 Oct	United
25 Sep - 06 Oct	TAP
19 Sep - 10 Oct	United
18 Sep - 10 Oct	United

Also check the deals for one-way flights from Sao Paulo to Dublin 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.

Book a cheap hotel in Dublin

Cheap car rent in Dublin

Cheapest return flights from Sao Paulo to Dublin in September from 673€

Return flights