Being prepared for security wait times will help you navigate Denver International Airport (DEN) with less stress. Arriving two hours early Denver Airport Security Wait Times for domestic flights and three hours early for international flights is a wise choice because mornings and holidays are typically the busiest. TSA PreCheck revolutionizes processing speed, allowing you to skip lengthy lineups. Watch the live security wait times on DEN's official website or app; this useful tool allows you to make last-minute schedule adjustments. You can get through security with ease and concentrate on having fun on your trip if you prepare a little. Have a safe journey!