AirHint found the following cheapest one-way flights from Lisbon (LIS) to Riga (RIX) in September 2026 (see full year).
One-Way flights
| 25 Sep | Vueling Airlines | ||
| 18 Sep | Vueling Airlines | ||
| 24 Sep | Ryanair | ||
| 14 Sep | Vueling Airlines | ||
| 25 Sep | airBaltic | direct | |
| 14 Sep | airBaltic | direct | |
| 18 Sep | airBaltic | direct |
Also check the deals for return flights from Lisbon to Riga in September.
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