During my recent trip with Frontier Airlines, while wait times at Frontier Airlines Denver Airport Terminal East varied by time of day, security was effective. Many passengers choose to fly early in the morning or late at night because Frontier is a low-cost airline, which might cause traffic at security checks. For passengers who qualified, TSA PreCheck lanes thankfully sped up the procedure. Before boarding, I had plenty of time to look around the concourse after passing through security.
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