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

Return flights

03 Aug - 03 Sep	Air France
03 Aug - 01 Sep	Air France
01 Aug - 08 Sep	Air France
01 Aug - 06 Sep	Air France
04 Aug - 25 Aug	Air France
01 Aug - 29 Aug	Air France
03 Aug - 24 Aug	TAP	direct
04 Aug - 03 Sep	Air France
01 Aug - 31 Aug	Air France
02 Aug - 31 Aug	TAP	direct
03 Aug - 03 Sep	TAP	direct
03 Aug - 01 Sep	TAP	direct
05 Aug - 03 Sep	Air France
05 Aug - 04 Sep	Air France
11 Aug - 02 Sep	Air France
12 Aug - 21 Aug	Air France
06 Aug - 30 Aug	TAP	direct
11 Aug - 18 Aug	GOL Linhas Aéreas
03 Aug - 12 Aug	Air France
11 Aug - 20 Aug	Air France

Also check the deals for one-way flights from Fortaleza to Lisbon 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 Fortaleza to Lisbon in August from 558€

Return flights