For a Delta flight, you can check in as early as 24 hours before your scheduled departure time. This can be done online through the Delta website or the Fly Delta app, or at the airport using a kiosk or ticket counter. If you need to check bags, you may need to be at the airport earlier than the minimum check-in time, especially for international flights. When flying with Delta Air Lines, checking in for your flight is a flexible and user-friendly process designed to accommodate every type of traveler. Delta allows passengers to check in starting 24 hours before their scheduled departure time. This check-in window applies to both domestic and international flights and can be accessed via multiple platforms, including the official Delta website, the Fly Delta mobile app, airport self-service kiosks, and staffed check-in counters. Using Delta's online check-in or mobile app check-in options is the most efficient way to complete the process. Passengers can log in to delta.com or open the mobile app and enter their booking confirmation number or SkyMiles information to retrieve their itinerary. From there, travelers can select seats, update travel documents, pay for checked bags, and receive their boarding passes. This convenient system eliminates the need to stand in long airport lines, especially for those who are only bringing carry-on luggage and don’t require assistance from airport staff.[1_86 6 5 51 11 86 Mobile check-in, available through the Fly Delta app, mirrors the online experience but adds mobile-specific features such as flight status notifications, digital boarding pass storage, and real-time gate updates. The app even allows automatic check-in, which will check you in as soon as the 24-hour window opens, assuming you’re logged into your Delta account. Once checked in, you can save your boarding pass to your digital wallet or simply scan the QR code at the airport security checkpoint and boarding gate. This streamlined experience is especially useful for frequent travelers who want to minimize airport wait times and handle their travel logistics on the go. For travelers who prefer a more traditional approach or need in-person assistance, Delta offers several on-site options. Self-service kiosks are available at most major airports and typically open up to 4 hours before departure. These kiosks let passengers check in, change seats, print boarding passes and baggage tags, and pay for any applicable fees. After tagging checked bags, travelers can proceed to the bag drop counter to complete the luggage process. These kiosks are ideal for passengers who didn’t check in online or need to adjust their travel plans on-site. If you're traveling with oversized baggage, sporting equipment, or pets, or if you need special accommodations such as wheelchair assistance, it’s best to use the staffed Delta check-in counters. These desks also open around 2 to 4 hours before your flight and usually close 60 minutes before domestic flights and 2 hours before international flights. Additionally, curbside check-in is available at select U.S. airports, where you can check in and drop off your luggage without entering the terminal. This service generally operates from 30 minutes to 4 hours before departure, depending on the airport and flight schedule. Delta recommends arriving at the airport at least 2 hours before a domestic flight and 3 hours before an international departure to allow enough time for check-in, baggage drop, security screening, and any unexpected delays. For international flights, additional time may be needed for document verification, customs, and immigration clearance. It is important to note that for both domestic and international travel, all passengers must be checked in and present at the gate no later than 15 minutes before departure for domestic flights and at least 45 minutes before departure for international flights. Failure to do so could result in denial of boarding, even if you have a boarding pass. In summary, Delta’s check-in process is designed for maximum convenience and efficiency. From online check-in and mobile check-in to airport kiosks, curbside service, and full-service counters, passengers have multiple ways to ensure they are ready to fly. By planning ahead and checking in within the 24-hour window, travelers can secure their seats, handle baggage needs, and enjoy a smoother, more organized airport experience. Whether you’re a seasoned flyer or a first-time traveler, Delta Air Lines provides the tools and support to make checking in both simple and stress-free.