To check in for a Delta flight, you can use online, mobile app, self-service kiosks, curbside, or ticket counters. Online and mobile check-in opens 24 hours before departure and closes 30 minutes before domestic flights and 60 minutes before international flights. Visit delta.com or use the Fly Delta app, enter your confirmation number or SkyMiles account, select seats, add baggage, and get your boarding pass. You can download, email, or save it to your phone wallet. If you have checked baggage, you still need to visit bag drop at the airport.

Self-service kiosks are available about 4 hours before departure and close 30 minutes prior. At kiosks, enter your reservation details, print boarding passes and baggage tags, and proceed to bag drop and security. Curbside check-in and bag drop are available at many U.S. airports from 4 hours before until 30 minutes before domestic flights and 60 minutes before international flights. This service is helpful for heavy or oversized bags but may not be available everywhere.

Ticket counters open 2 to 3 hours before domestic flights and 3 hours before international flights. Agents can assist with check-in, bag drop, boarding passes, and travel document verification. Paper boarding passes can be printed at counters if needed. If you have special needs, pets, or travel restrictions, check in at the counter.

For international flights, you may need passport verification at the airport if prompted. After verification, your boarding pass will show document approval. To avoid issues, check in online as early as possible, pay for bags in advance, bring valid ID or passport, and arrive early to allow time for document checks and baggage drop. This ensures a smooth check-in process with Delta.