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

Return flights

02 Dec - 09 Dec	Delta
03 Dec - 05 Dec	Spirit Airlines
04 Dec - 13 Dec	United
03 Dec - 17 Dec	United
03 Dec - 06 Dec	Spirit Airlines
25 Dec - 20 Jan	Delta
25 Dec - 21 Jan	Delta
26 Dec - 11 Jan	LATAM Airlines Group
05 Dec - 27 Dec	United
29 Dec - 07 Jan	Air Canada
03 Dec - 06 Dec	United	direct
03 Dec - 05 Dec	United	direct
24 Dec - 28 Dec	Delta
24 Dec - 12 Jan	Delta
14 Dec - 21 Dec	United
12 Dec - 19 Jan	United
26 Dec - 09 Jan	United
26 Dec - 10 Jan	United
17 Dec - 07 Jan	Air Canada
17 Dec - 12 Jan	United	direct

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

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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Cheapest return flights from Newark to Sao Paulo in December from 510€

Return flights