AirHint found the following cheapest return flights from Porto Alegre (POA) to Cancun (CUN) in September 2026 (see full year).
Return flights
| 14 Sep - 20 Sep | Copa | ||
| 07 Sep - 13 Sep | Copa | ||
| 05 Sep - 12 Sep | LATAM Airlines Group | ||
| 06 Sep - 18 Sep | Copa |
Also check the deals for one-way flights from Porto Alegre to Cancun in September.
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