AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Lisbon (LIS) in October 2025 (see full year).
Return flights
| 29 Oct - 05 Nov | United | ||
| 21 Oct - 28 Oct | United | ||
| 15 Oct - 22 Oct | United | ||
| 24 Oct - 31 Oct | United | ||
| 06 Oct - 13 Oct | United | ||
| 18 Oct - 25 Oct | United | ||
| 03 Oct - 10 Oct | United | ||
| 09 Oct - 16 Oct | United |
Also check the deals for one-way flights from Raleigh-durham to Lisbon in October.
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.
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