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

Return flights

28 Sep - 09 Oct	Air France
22 Sep - 06 Oct	TAP	direct
30 Sep - 06 Oct	TAP	direct
29 Sep - 06 Oct	LATAM Airlines Group	direct
30 Sep - 15 Oct	Air France
15 Sep - 22 Sep	LATAM Airlines Group	direct
22 Sep - 02 Oct	TAP	direct
22 Sep - 30 Sep	TAP	direct
22 Sep - 29 Sep	TAP	direct
23 Sep - 08 Oct	Air France
28 Sep - 12 Oct	Air France
14 Sep - 23 Sep	Air France
25 Sep - 02 Oct	TAP	direct
02 Sep - 19 Sep	Air France
25 Sep - 06 Oct	TAP	direct
24 Sep - 29 Sep	TAP	direct
08 Sep - 14 Sep	TAP	direct
07 Sep - 14 Sep	Air France
17 Sep - 24 Sep	TAP	direct
09 Sep - 15 Sep	Air France

Also check the deals for one-way flights from Fortaleza to Lisbon in September.

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 September from 669€

Return flights