Cheapest return flights from Raleigh-durham to Lisbon in December from $568

AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Lisbon (LIS) in December 2025 (see full year).

Return flights

09 Dec - 16 Dec United
04 Dec - 11 Dec United
11 Dec - 15 Dec British Airways
24 Dec - 31 Dec British Airways
14 Dec - 21 Dec United
25 Dec - 31 Dec TAP
25 Dec - 01 Jan TAP
29 Dec - 05 Jan United
26 Dec - 04 Jan jetBlue
19 Dec - 26 Dec United

Also check the deals for one-way flights from Raleigh-durham to Lisbon in December.

Skyscanner

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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