protect

To protect a passenger means to issue a confirmed booking on a subsequent flight, typically the next available service on the same route or a connecting service. This second reservation becomes active only if the passenger fails to board or check in for their originally scheduled flight. The protect booking sits in the system as a safety net, allowing the airline to minimize no-show losses and empty seats rather than simply cancelling the passenger's journey.

Protects are most common in connecting passenger scenarios. If a passenger is booked on a tight connection and their inbound flight is running late, ground staff or the airline system may automatically protect them onto the next flight to their final destination. Similarly, if weather or mechanical delays threaten a departure, agents may proactively protect all passengers before the flight becomes too late to connect. This is standard practice in hub-and-spoke airline operations where passengers transfer between flights.

A protect booking requires space on the later flight and must be entered into the reservation system before the original flight closes for check-in. The passenger typically remains unaware of the protect unless they actually miss the original flight. Once the original booking is confirmed as boarded, or once check-in closes with the passenger present, the protect is automatically cancelled to free the seat. If the original flight departs and the passenger is not aboard, the protect becomes a live reservation and the passenger can use it without additional payment or re-booking.

Airlines use protect bookings strategically to manage crew duty times and aircraft rotations. A pilot or flight attendant whose schedule is threatened by a delay may be protected onto a later flight, allowing their original assignment to be reassigned without disrupting the network. This is distinct from a simple standby arrangement, which requires a passenger to wait and hope for a seat, whereas a protect is a confirmed future booking.

The term reflects the aviation industry's operational vocabulary around passenger and crew movement. It is not the same as overbooking or overselling; a protect is a courtesy or operational necessity, not a revenue management tool. Failure to clear a protect in time, or using protects incorrectly, can result in oversold flights and denied boarding incidents, which is why the procedure is carefully controlled and documented in airline manuals.