AirHint found the following cheapest return flights from Houston (HOU) to Sao Paulo (GRU) in October 2025 (see full year).

Return flights

03 Oct - 17 Oct	Spirit Airlines
18 Oct - 25 Oct	Spirit Airlines
03 Oct - 22 Oct	Air Canada
06 Oct - 20 Oct	United
08 Oct - 22 Oct	United	direct
15 Oct - 29 Oct	United	direct
16 Oct - 30 Oct	United	direct
09 Oct - 23 Oct	United
13 Oct - 27 Oct	United
14 Oct - 28 Oct	United
30 Oct - 13 Nov	United	direct
28 Oct - 11 Nov	United
20 Oct - 03 Nov	United	direct
23 Oct - 06 Nov	United	direct
21 Oct - 04 Nov	United
22 Oct - 05 Nov	United
27 Oct - 10 Nov	United	direct
29 Oct - 12 Nov	United	direct
25 Oct - 08 Nov	United
26 Oct - 09 Nov	United

Also check the deals for one-way flights from Houston to Sao Paulo in October.

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 Houston to Sao Paulo in October from 431€

Return flights