Cheapest return flights from Seattle to Sao Paulo in September from 403€

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

Return flights

06 Sep - 19 Sep LATAM Airlines Group
16 Sep - 28 Sep Delta
18 Sep - 25 Sep Delta
09 Sep - 18 Sep Delta
11 Sep - 20 Sep Delta
17 Sep - 14 Oct LATAM Airlines Group

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

Skyscanner

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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