Cheapest return flights from Raleigh-durham to Lisbon in August from $753
AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Lisbon (LIS) in August 2025 (see full year).
Return flights
| 13 Aug - 20 Aug | United | ||
| 31 Aug - 07 Sep | Icelandair | ||
| 18 Aug - 25 Aug | United | ||
| 05 Aug - 12 Aug | United | ||
| 28 Aug - 04 Sep | United | ||
| 23 Aug - 30 Aug | United | ||
| 02 Aug - 09 Aug | United | ||
| 08 Aug - 15 Aug | United |
Also check the deals for one-way flights from Raleigh-durham to Lisbon in August.
The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
