AirHint found the following cheapest return flights from Alicante (ALC) to Lisbon (LIS) in September 2026 (see full year).
Return flights
| 24 Sep - 13 Oct | Ryanair | direct | |
| 24 Sep - 08 Oct | Ryanair | direct | |
| 13 Sep - 15 Sep | Ryanair | direct | |
| 06 Sep - 15 Sep | Ryanair | direct |
Also check the deals for one-way flights from Alicante to Lisbon in September.
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