Lufthansa offers several check-in options to accommodate travelers' preferences. Online check-in is available 23 hours before departure on the Lufthansa website or mobile app. Passengers can enter their booking reference and last name to select seats, add baggage, and receive a boarding pass via email or mobile device. The mobile app also provides real-time flight updates and gate information. At the airport, self-service kiosks are available for check-in, allowing passengers to print boarding passes and baggage tags. For those needing assistance, check-in counters are staffed to help with document verification and baggage handling. Lufthansa recommends arriving at least 2 hours before departure for international flights to ensure a smooth check-in process.Passengers are advised to arrive at the airport at least two hours before domestic flights and three hours before international flights to ensure ample time for check-in and security procedures. For travelers needing assistance or more information, Lufthansa customer service can be reached at +1-866-551-1186.