AirHint found the following cheapest return flights from Newark (EWR) to Sao Paulo (GRU) in March 2026 (see full year).

Return flights

16 Mar - 31 Mar	Frontier Airlines
24 Mar - 31 Mar	Spirit Airlines
21 Mar - 31 Mar	Frontier Airlines
21 Mar - 26 Mar	Arajet
19 Mar - 26 Mar	Arajet
05 Mar - 19 Mar	Arajet
12 Mar - 19 Mar	Arajet
22 Mar - 31 Mar	Arajet
11 Mar - 19 Mar	Spirit Airlines
01 Mar - 31 Mar	Frontier Airlines
18 Mar - 02 Apr	Frontier Airlines
31 Mar - 14 Apr	Arajet
31 Mar - 11 Apr	Arajet
31 Mar - 13 Apr	Arajet
26 Mar - 02 Apr	Arajet
31 Mar - 07 Apr	Arajet
25 Mar - 01 Apr	Spirit Airlines
30 Mar - 11 Apr	Frontier Airlines
31 Mar - 06 Apr	Arajet
30 Mar - 06 Apr	Spirit Airlines

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

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 March from 376€

Return flights