When you miss a connecting flight, the fate of your checked luggage depends on the reason for the delay. If the miss was due to an airline-controlled issue (like a mechanical delay), the airline is responsible for tracking your bags. Usually, they will automatically "short-ship" the bags or hold them at the connecting airport to be placed on your newly rebooked flight. If you missed the flight due to your own delay, the bags may still be loaded onto the original plane and arrive at your final destination without you. In this case, they are held in the "Baggage Service Office" at the destination airport until you arrive to claim them. In 2026, most major airlines offer real-time bag tracking in their apps, allowing you to see if your suitcase is "In Transit," "Held," or "At Destination." If your bags are missing, you must file a "Property Irregularity Report" (PIR) immediately at the airport to initiate a formal search.