To add TSA PreCheck to Oman Air ,contact their customer service at 1-866-564-8331 or update your profile online. and confirm TSA PreCheck appears on your boarding pass. Traveling internationally can be stressful, especially when departing from airports in the United States where security lines are often long and time-consuming. For passengers flying with Oman Air, the national airline of Oman, adding TSA PreCheck to your booking can make the journey smoother and more efficient. TSA PreCheck is a program offered by the Transportation Security Administration in the United States that allows eligible travelers to use expedited security lanes. This guide will explain in detail how to add TSA PreCheck to your Oman Air booking, what requirements you need to meet, and how to ensure that your Known Traveler Number is correctly applied to your reservation.