Check-in at Delta Air Lines
Online check-in
Online check-in is available free of charge 24 hours - 30 minutes prior to scheduled departure. It can be done via the airline's website. You can download the boarding pass to your mobile phone or print it out. Another option is to check in using the Fly Delta smartphone app, where you can generate a boarding pass after filling out the required information.
Airport check-in
Check-in can be done free of charge at the airport check-in counter. Check-in counters are available 3 hours - 30 minutes before departure. Check-in counters are available 24 hours a day at some airports in the US.
You can also check in at the airport via the airport's Delta kiosks, where you can print your boarding pass yourself by entering your reservation number and the necessary details. The kiosks have the advantage of being open nonstop. You can print your boarding pass yourself at the kiosk. You can also check in your baggage, print a label, attach it to your bag and put it on the belt.