How can I take advantage of standby flights and what is the process for securing a seat?

To take advantage of standby flights, you can typically request to be placed on the standby list at the airport counter or through the airline's website or app. If there are available seats on the flight, you may be able to secure a seat at a discounted rate or for free if you are a frequent flyer or have a flexible schedule. Keep in mind that standby seats are not guaranteed, so it's best to have a backup plan in case you are not able to secure a seat on the desired flight.