The Minimum Connection Time (MCT) for American Airlines at Charlotte Douglas International Airport (CLT) is typically 45 minutes for domestic-to-domestic connections. However, in 2026, travel experts strongly recommend allowing at least 60 to 75 minutes. Charlotte is a massive hub where you might land at the end of Concourses A or B and have your next flight depart from the very end of Concourse E (the regional terminal). This walk can take 15 to 20 minutes at a brisk pace, not accounting for the dense crowds in the "Atrium" area. For international-to-domestic connections, the MCT is significantly longer—usually 90 minutes to 2 hours—because you must clear U.S. Customs and Border Protection, collect your bags, and re-clear security. If your booking falls below these MCT thresholds, the airline is generally responsible for rebooking you if a delay occurs, but for your own peace of mind, choosing a slightly longer layover in Charlotte is wise, as it is one of the most "congested" hubs in the American Airlines network and frequently experiences weather-related "ground stops" that can ripple through your entire travel day.