Was your flight canceled? Don't despair. When this happens, airline officials will contact the airline's operations and customer service center and try to rebook you on another available time slot as soon as possible. If you later decide you no longer wish to travel, you have the right to request a refund. You will receive this refund in the form of miles that you can use on another airline ticket purchase.

For domestic flights, we recommend arriving approximately three hours before your scheduled flight time. However, for international flights, we recommend arriving approximately four hours before the scheduled departure time. For international flights, we recommend checking in one hour before departure and arriving at the gate approximately 45 minutes before departure.

You can use miles to purchase future tickets. To use them, you must visit the Delta Airlines website or download the company's app. There, you'll see information on where you can use them and the number of miles you have accumulated.