AirHint found the following cheapest return flights from Porto (OPO) to Cancun (CUN) in August 2026 (see full year).

Return flights

24 Aug - 31 Aug	Delta
24 Aug - 03 Sep	United
03 Aug - 12 Aug	Air Transat
03 Aug - 09 Aug	Air Transat
15 Aug - 29 Aug	Air Transat
15 Aug - 22 Aug	Air Transat
02 Aug - 08 Aug	TAP
15 Aug - 25 Aug	United
13 Aug - 18 Aug	British Airways

Also check the deals for one-way flights from Porto to Cancun in August.

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 Porto to Cancun in August from 741€

Return flights