AirHint found the following cheapest return flights from Seattle (SEA) to Sao Paulo (GRU) in October 2025 (see full year).
Return flights
| 09 Oct - 16 Oct | American Airlines | ||
| 10 Oct - 20 Oct | GOL Linhas Aéreas | ||
| 09 Oct - 18 Oct | American Airlines | ||
| 03 Oct - 12 Oct | LATAM Airlines Group | ||
| 10 Oct - 19 Oct | GOL Linhas Aéreas |
Also check the deals for one-way flights from Seattle 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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