AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Lisbon (LIS) in October 2025 (see full year).
Return flights
| 18 Oct - 02 Nov | Icelandair | ||
| 20 Oct - 29 Oct | Spirit Airlines | ||
| 31 Oct - 03 Nov | Air France | ||
| 08 Oct - 15 Oct | Air France | ||
| 11 Oct - 18 Oct | British Airways |
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.
Find us on social media