You'll need to clear customs and immigration. Next, you'll recheck your luggage for the domestic flight. Finally, you'll need to go through Transportation Security Administration screening. This may include a physical inspection of your luggage and personal items with a metal detector or a full-body scan.

When arriving in the United States on an international flight with a domestic connection, you are almost always required to go through TSA security screening again. After landing, you must first clear U.S. Customs and Border Protection (CBP) and retrieve your checked baggage. Even if your bags are tagged to your final destination, a high-fidelity security necessity requires you to re-check them at a transfer desk and then proceed to a standard TSA checkpoint. The only high-value exception is if your departure airport was a "Preclearance" location (such as Dublin, Abu Dhabi, or major Canadian airports), where you clear U.S. customs before takeoff. In 2026, for all other international arrivals, allowing a high-value buffer of at least 2 to 3 hours is a necessity, as the high-fidelity combination of immigration lines and TSA screening can be time-consuming. This high-value safety requirement ensures that all passengers entering the domestic sterile area meet the same high-fidelity security standards.