MDW · Chicago Midway International Airport

Security & TSA

TSA security screening at Chicago Midway International Airport follows the standard U.S. federal protocol with operational variations specific to MDW's terminal layout, traffic profile, and morning/afternoon flight banks. Checkpoints are distributed across the terminals and concourses to spread load, with the largest checkpoints staffed at the busiest hub-airline terminals and smaller checkpoints serving low-cost-carrier and regional concourses. Wait times posted on the airport's website and through the TSA's MyTSA app are based on rolling averages and can be stale by 15–20 minutes during operational disruptions; build in extra time during peak hours.

TSA PreCheck lanes operate at the highest-volume checkpoints during the bulk of operating hours at MDW. PreCheck members keep shoes, belts, and light jackets on, leave 3-1-1 liquids and laptops in the bag, and walk through a standard metal detector instead of the millimeter-wave full-body scanner. Lane availability changes by time of day — during very early morning and very late evening hours, some PreCheck lanes consolidate into the standard checkpoint with a designated PreCheck divider. CLEAR biometric verification operates at most MDW checkpoints alongside the standard documents lanes; CLEAR membership lets you skip the document-check line entirely and proceed directly to the screening conveyor, with the largest time savings during peak hours when document-check lines back up the longest. CLEAR and PreCheck stack — using both shaves the most time off your checkpoint experience.

Standard screening lanes require shoes off, belts off, electronics larger than a phone out of the bag, and 3-1-1 compliant liquids in a clear quart-sized bag in a separate bin. Newer Computed Tomography (CT) scanners — increasingly deployed at MDW's busiest checkpoints — eliminate the laptops-out and liquids-out requirement at lanes where they are installed; signage at the checkpoint will indicate when this is the case. Boarding passes (paper or mobile) plus a federally compliant ID (REAL ID, U.S. passport, military ID, Global Entry card, or a few other accepted credentials) are required to enter the checkpoint. As of the federally mandated REAL ID enforcement deadline, a non-REAL-ID state driver's license is no longer accepted as a standalone boarding credential.

Special-screening accommodations at MDW include the TSA Cares program for travelers with disabilities or medical conditions; advance request lets a TSA Passenger Support Specialist meet the traveler at the checkpoint and walk them through the screening process. Children 12 and under and adults 75 and over are screened under modified procedures (shoes and light jackets stay on). Wheelchair and mobility-aid screening is performed by a same-gender officer in a private screening area on request. Service animals are screened via walk-through and a brief secondary inspection. Always allow extra time when traveling with medical equipment, breast milk or infant formula in carry-on, or sealed firearms in checked baggage — each requires a brief separate process at the appropriate checkpoint or counter.