AirHint found the following cheapest one-way flights from Lisbon (LIS) to Warsaw (WMI) in September 2026 (see full year).
One-Way flights
| 08 Sep | Ryanair | direct | |
| 01 Sep | Ryanair | direct | |
| 16 Sep | Ryanair | direct | |
| 07 Sep | TAP | ||
| 12 Sep | Ryanair | direct | |
| 09 Sep | Iberia | ||
| 10 Sep | easyJet | ||
| 11 Sep | easyJet | ||
| 02 Sep | Ryanair | direct | |
| 25 Sep | Vueling Airlines |
Also check the deals for return flights from Lisbon to Warsaw in September.
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