AirHint found the following cheapest return flights from Seattle (SEA) to Sao Paulo (GRU) in May 2026 (see full year).
Return flights
| 11 May - 25 May | Frontier Airlines | ||
| 30 May - 30 Jun | Frontier Airlines | ||
| 20 May - 27 May | Aeromexico | ||
| 21 May - 28 May | Frontier Airlines | ||
| 25 May - 19 Jun | Delta |
Also check the deals for one-way flights from Seattle to Sao Paulo in May.
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.
Find us on social media