Cheapest return flights from Seattle to Sao Paulo in December from $878

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

Return flights

13 Dec - 20 Dec Alaska Airlines
10 Dec - 08 Jan Hawaiian Airlines
01 Dec - 11 Jan Delta
05 Dec - 08 Jan Copa
20 Dec - 10 Jan Frontier Airlines
19 Dec - 03 Jan Alaska Airlines
16 Dec - 06 Jan American Airlines

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

Powered by

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 Sao Paulo

Cheap car rent in Sao Paulo

Feel free to contact us with any feedback or request another flight research.