How to Add TSA Precheck to Turkish Airlines? To add TSA Precheck to your Turkish Airlines booking, you will need to follow a few simple steps. Firstly, ensure that you are eligible for TSA Precheck by checking if you hold US citizenship or lawful permanent residency. If so, proceed to the next step. You must then apply for TSA Precheck through the Transportation Security Administration's (TSA) official website and complete their application form. Once your application is submitted, you will need to schedule an appointment at one of the authorized enrollment centers for biometric verification and fingerprinting. Pay the required non-refundable fee for processing and evaluation of your application. Upon successful completion of these steps, you will receive a Known Traveler Number (KTN). To add TSA Precheck to your Turkish Airlines reservation, make sure to enter this KTN into the appropriate field on your booking or provide it manually during check-in at the airport. https://travelingsinfo.com/how-to-add-tsa-precheck-to-turkish-airlines/