Security Wait Times at Las Vegas Airport can vary depending on the time of day, travel season, and passenger volume. Harry Reid International Airport typically experiences higher wait times during early mornings, weekends, and holiday periods. To avoid delays, travelers are advised to arrive at least two hours before domestic flights and three hours before international departures. The airport offers multiple security checkpoints and TSA PreCheck lanes to speed up the process for eligible passengers. Checking real-time updates and planning ahead can help ensure a smoother and more efficient airport experience.