No, you cannot use TSA PreCheck in Spain, nor at any other airport outside of the United States and a very limited number of U.S. Preclearance sites (such as the Bahamas or Ireland). TSA PreCheck is a program specifically managed by the United States Transportation Security Administration and only applies to domestic departures from participating U.S. airports. When flying from major Spanish hubs like Madrid-Barajas (MAD) or Barcelona-El Prat (BCN), all passengers—regardless of their U.S. security status—must go through standard European aviation security screening. This means you will likely need to remove your belt, shoes, and light jacket, and place your liquids and large electronics in separate bins as per EU regulations. However, your TSA PreCheck status remains highly valuable for your return journey; if you have a connecting domestic flight after you land in the U.S. and clear customs, your boarding pass will likely feature the PreCheck indicator, allowing you to use the expedited lanes for the final leg of your trip. In 2026, Spanish airports utilize their own "Fast Track" lanes, which are typically reserved for business class passengers or those who pay an additional fee.