Don’t have a Real ID or other federal ID and trying to fly domestically? If you have more than 4 weeks until your flight get a Real ID immediately. Otherwise TSA recommends doing the following to better your chances of catching that flight:

Arrive to the airport at least 3 hours early to give yourself adequate time for the additional screening.

Bring available identity documentation like a birth certificate, previous OK license, or that temporary paper copy of your license.

Expect additional screening and possible boarding denial. TSA has made it VERY clear that they reserve the right to deny passage through security.