Excellent question. The answer is yes, but only until May 7, 2025.
Here’s the breakdown:
You can currently use a standard (non-REAL ID) driver’s license or state ID to fly domestically on Southwest Airlines (or any airline). The TSA checkpoint will accept it as a valid form of identification.
The federal REAL ID Act enforcement deadline is May 7, 2025. After this date: You will need a REAL ID-compliant driver’s license/state ID or another acceptable form of TSA-approved identification to board a domestic flight. A standard non-compliant license will not be accepted at the security checkpoint.
It’s a driver’s license or state ID that meets higher security standards. You can identify it by a star in the top corner (the design of the star varies by state).