Check-in is the mandatory procedure that the passenger must follow in order to be able to board. The airline makes the identification of the passenger, dispatches the luggage, verifies the necessary documents and gives the authorization for the shipment.
While waiting at the airport and constantly check the panel flights to see if there was a change of boarding gate or departure time of your flight. To avoid setbacks, it is important to arrive at the airport at least two hours in advance for domestic travel and at least three hours in advance for international travel.