Check-in counters are designated areas in airports where passengers go to register for their flights. At these counters, travelers present their identification and flight information to airline staff, who assist with ticketing and baggage handling. This process ensures that passengers are properly checked in and that their luggage is tagged for the correct destination. Once checked in, passengers receive a boarding pass, which provides details about their flight, including the departure gate and boarding time. Check-in counters are typically located near the entrance of the airport terminal and are organized by airline, such as American Airlines or Delta Air Lines.