In aviation, a "HOT" sticker or tag on luggage indicates a "Hot Connection," signifying that the bag belongs to a passenger with a very tight transfer time (typically under 45–60 minutes). This alert tells baggage handlers that the suitcase needs to be among the first offloaded from the arrival aircraft and rushed immediately to the next connecting flight. These bags are often loaded into a specific "loose" compartment or a dedicated "HOT ULD" (Unit Load Device) near the aircraft door to give them the best possible chance of making the connection. If you see this on your bag, it means the airline's system has flagged your itinerary as high-risk for a missed baggage transfer, and the "Hot" designation is the ground crew's priority signal to prevent your luggage from being left behind.