AirHint found the following cheapest return flights from Lisbon (LIS) to Cancun (CUN) in August 2025 (see full year).

Return flights

27 Aug - 06 Sep	KLM
27 Aug - 04 Sep	Delta
28 Aug - 05 Sep	Air France
30 Aug - 13 Sep	SWISS
28 Aug - 10 Sep	Delta
28 Aug - 12 Sep	Delta
30 Aug - 06 Sep	SWISS
26 Aug - 06 Sep	Delta
25 Aug - 01 Sep	Delta
26 Aug - 02 Sep	Air Canada
25 Aug - 30 Aug	Air Canada
27 Aug - 31 Aug	Delta
26 Aug - 31 Aug	Delta
15 Aug - 25 Aug	Delta
06 Aug - 25 Aug	Delta
15 Aug - 26 Aug	Delta
18 Aug - 25 Aug	Delta
20 Aug - 25 Aug	Delta
18 Aug - 26 Aug	Delta
19 Aug - 26 Aug	Delta

Also check the deals for one-way flights from Lisbon 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 Lisbon to Cancun in August from 535€

Return flights