"Confirmed Standby" (often called Same-Day Confirmed) is a service offered by many airlines that allows you to secure a guaranteed seat on a different flight than the one you originally booked, provided both flights are on the same day. Unlike "Standard Standby," where you wait at the gate hoping for a no-show and a free seat, Confirmed Standby gives you a confirmed reservation and a new boarding pass before you even head to the airport. In 2026, the fee for this service typically ranges from $50 to $75, though it is often waived for high-tier elite members or those with flexible "full-fare" tickets. There are usually strict rules: the new flight must have the same origin and destination, and you typically cannot make the change until 24 hours before your original departure. This is an excellent option for business travelers whose plans change last minute or for those who want to snag an earlier flight without the uncertainty of the standby list, as it removes the "gamble" of being stuck at the terminal if the flight is full.