How to Add TSA Precheck to Turkish Airlines? Adding TSA Precheck to your Turkish Airlines booking requires a few simple steps. Firstly, ensure that you are enrolled in the TSA Precheck program and have received your Known Traveller Number (KTN). Next, log in to your Turkish Airlines account and navigate to your personal information page. Here, you should see a section labelled "Known Traveller Number." Input your KTN in this field and save changes.
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