You can check in for a Delta flight up to 24 hours before departure through the Delta app, website, or airport kiosks. Online check-in is the fastest way—it allows you to choose seats, pay for baggage, and download your mobile boarding pass. For domestic flights, it’s recommended to arrive at least 2 hours early, and for international flights, at least 3 hours before departure. Checked baggage must be dropped off at least 45 minutes before domestic and 60 minutes before international flights. Delta’s app also provides real-time gate information and digital bag tracking. For passengers with special assistance, pets, or oversized luggage, arriving earlier is best. Elite members and First Class passengers benefit from dedicated check-in counters for faster service. Checking in early not only avoids delays but also increases your chance of receiving upgrades or preferred seating.
