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

Return flights

10 Mar - 16 Mar	Copa
11 Mar - 17 Mar	Copa
03 Mar - 10 Mar	Copa
19 Mar - 26 Mar	Copa
11 Mar - 25 Mar	Copa
18 Mar - 25 Mar	Copa
17 Mar - 23 Mar	Copa
15 Mar - 22 Mar	Copa
17 Mar - 25 Mar	Copa
02 Mar - 12 Mar	Copa
30 Mar - 10 Apr	Copa
31 Mar - 07 Apr	Copa
27 Mar - 14 Apr	Copa
27 Mar - 04 Apr	Copa
29 Mar - 05 Apr	Copa
31 Mar - 21 Apr	Avianca
25 Mar - 14 Apr	Avianca
31 Mar - 14 Apr	Avianca
30 Mar - 14 Apr	Avianca
27 Mar - 15 Apr	Avianca

Also check the deals for one-way flights from Sao Paulo to Cancun 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 Sao Paulo to Cancun in March from $444

Return flights