Standby tickets are a type of discounted ticket that allows passengers to fly on a standby basis, meaning that they are not guaranteed a seat on the flight but may be able to board if there are empty seats available after all ticketed passengers have boarded. Standby tickets are typically available for purchase at the airport on the day of the flight and are often significantly cheaper than full-fare tickets.
There are several benefits to purchasing standby tickets. First, they can be much cheaper than full-fare tickets, especially for last-minute travel. Second, standby tickets can be more flexible than full-fare tickets, as you are not locked into a specific flight time. Finally, standby tickets can be a good option for travelers who are willing to take the risk of not getting a seat on the flight.