Add TSA PreCheck to your Iberia Airlines flight by entering your KTN online or calling 1-866-284-2457 for assistance. To add TSA PreCheck to your Iberia Airlines flight, enter your Known Traveler Number (KTN) during booking or through the “Manage Booking” section on the Iberia website. Make sure your full name matches exactly with your TSA PreCheck enrollment. If you've already completed the booking or checked in, call Iberia Airlines customer service for assistance. Adding your KTN ensures you receive TSA PreCheck benefits, such as expedited security screening at participating U.S. airports. Look for the TSA PreCheck logo on your boarding pass to confirm it’s active. For help, contact customer support or visit the nearest Iberia service desk.