AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Lisbon (LIS) in March 2026 (see full year).
Return flights
| 07 Mar - 28 Mar | Air Canada | ||
| 13 Mar - 18 Mar | British Airways | ||
| 09 Mar - 04 Apr | Air Canada | ||
| 11 Mar - 04 Apr | SWISS | ||
| 12 Mar - 04 Apr | SWISS |
Also check the deals for one-way flights from Raleigh-durham to Lisbon in March.
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