The Friday before spring break is always big day for travelers.
Vacationers have either taken off work today to get a head start out of town, or they'll be hitting the airport right after work.
Lines are already backing up at Tulsa International Airport.
If you have a flight today, make sure to leave early and give yourself plenty of time to get through security.
TSA is warning travelers that lines at security checkpoints will be longer and move slower.