If the airport code is unknown, click on 
. The city where the airport is located can be entered in full and a list of airports servicing that city will be displayed. Select the appropriate airport and the correct code will be entered for you.
If the airport code is unknown, click on . The city where the airport is located can be entered in full and a list of airports servicing that city will be displayed. Select the appropriate airport and the correct code will be entered for you.