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Traveling through ORD TSA Wait Times Terminal 3 at Chicago O Hare can be smooth when you plan ahead. Security lines here often reflect heavy passenger traffic, especially during early morning departures and late afternoon flights. Arriving at least two hours before takeoff gives you a comfortable buffer in case screening moves slower than expected. Enrollment in PreCheck can shorten the process significantly for eligible travelers. Keep your identification and boarding pass ready, follow liquid rules carefully, and organize electronics for quick removal if required. Checking live updates before leaving for the airport helps you adjust your timing and reduce last minute stress.