According to the Turkish name change policy, you can alter up to four letters in the first/middle/surname and change a name due to marriage or divorce. The airline lets passengers change/alter their name online at the official website and by approaching the customer support over the phone or at the airport. For more information on how to change name on Turkish Airlines ticket you can contact Turkish Airlines customer support. Also, you can connect with the consolidation desk at +1-800-865-1848 to get instant assistance.