Cheapest return flights from Washington to Sao Paulo in September from 492€

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

Return flights

24 Sep - 28 Sep Copa
11 Sep - 15 Sep Copa
14 Sep - 21 Sep Avianca
05 Sep - 18 Sep Avianca
14 Sep - 20 Sep Copa
09 Sep - 13 Sep Copa
19 Sep - 03 Oct Copa
29 Sep - 06 Oct Copa
11 Sep - 14 Sep Copa
20 Sep - 29 Sep United direct
15 Sep - 22 Sep United direct
16 Sep - 07 Oct United direct
19 Sep - 03 Oct United direct
29 Sep - 06 Oct United direct
11 Sep - 15 Sep United direct

Also check the deals for one-way flights from Washington 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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