LATAM Airlines offers multiple check-in options to make travel easy and efficient. Online check-in opens 48 hours before departure and closes 2 hours prior. Passengers can check in via the LATAM website or mobile app by entering their booking reference and last name. During online check-in, travelers can select or change seats, add baggage, and obtain a boarding pass that can be printed or saved digitally. Automatic check-in is available for eligible passengers on domestic flights purchased through LATAM, where the boarding pass is sent 48 hours before departure. At the airport, check-in counters open 3 hours before departure and close 1 hour prior for domestic flights and 2 hours prior for international flights. Passengers are advised to arrive at least 2 hours early for domestic and 3 hours early for international flights. Self-service kiosks are also available for quick check-in, printing boarding passes, and baggage tags. After kiosk check-in, travelers with checked bags can proceed to bag drop counters. Priority check-in counters serve premium cabin passengers and LATAM Pass elite members to expedite the process. It is important to follow baggage policies and have all travel documents ready, including passports and visas. For codeshare flights, check-in procedures may vary depending on the operating airline. Passengers with connecting flights should allow enough time for any additional check-in or baggage handling. Arriving late may result in denied boarding, so adhering to check-in deadlines is crucial. Passengers can contact LATAM customer service for help with check-in or other inquiries.