AirHint found the following cheapest return flights from Lisbon (LIS) to Bucharest (BBU) in September 2026 (see full year).
Return flights
| 23 Sep - 29 Sep | Ryanair | ||
| 23 Sep - 05 Oct | Ryanair | ||
| 15 Sep - 30 Sep | Ryanair | ||
| 10 Sep - 30 Sep | TAP | ||
| 22 Sep - 04 Oct | Ryanair | ||
| 02 Sep - 09 Sep | TAP | ||
| 02 Sep - 07 Sep | Wizz Air |
Also check the deals for one-way flights from Lisbon to Bucharest in September.
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