Hi - I am having the same issues with my TSA precheck not showing up on my boarding pass, I had my KTN added before I checked in and it didnt show up on my boarding pass. Now I just tried that link that guy posted but it is saying since I already checked in to this flight it is too late to add my KTN? "It looks like you've already checked in for this flight. Unfortunately, we are unable to add your secure traveler information after the check in process is complete. If you have questions or require further assistance, please contact a Southwest Airlines Customer Representative at 1-800-I-FlY-SWA (1-800-435-9792). (SW900001-1EyejzgKQoaM2EcZzWsCfw)" This is the error message I got. Can you help? My flight is tonight after work and I really need to be TSA! Thanks, Shelby W
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