AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Lisbon (LIS) in June 2026 (see full year).
Return flights
| 30 Jun - 14 Jul | Icelandair | ||
| 05 Jun - 09 Jun | TAP | ||
| 01 Jun - 12 Jun | Delta | ||
| 14 Jun - 01 Jul | Lufthansa | ||
| 08 Jun - 15 Jun | Finnair |
Also check the deals for one-way flights from Raleigh-durham to Lisbon in June.
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