Frontier Airlines passengers can bring their Classic or Classic Plus boarding pass within three days of the flight date to Winter Park or Copper Mountain and receive two-for-one lift tickets through April 12, 2010. Guests must purchase one adult full-day pass to be eligible to receive a free lift ticket of equal or lesser value.

You must present proof of ID that matches the name on the boarding pass to receive the free ticket and both lift tickets must be used on the same day at the same resort. Blackout dates include March 19 — March 28, 2010. Visit http://www.webflyer.com/link/?2018 for more details.