Terms and Conditions: Package must be booked with lodging through Ski.com. Offers subject to availability at time of booking. Only available with participating properties; some properties may have blackout dates or require a longer stay. Offer not valid on existing reservations. May not be combined with other adult promotional offers. One promotion per guest and two max per room only. Valid on longer stays. Includes a $200 air credit per air ticket purchased with Ski.com on either American, United or Delta arriving into the Aspen/Pitkin County Airport. Required to purchase lodging, lift tickets and airfare to receive the airline credit. Kids 6 and under always ski free. Buy 3 get 4 on adult lift tickets are available January 1 - March 31, 2019. Get an even better rate from November 22 – December 21, 2018 and April 1 - April 21, 2019 on adult lift tickets: buy a minimum of 2 days, get $60/day lift ticket. No air credit available for stays December 22-January 5, 2019. Only available when booking participating hotels in Aspen or Snowmass. Quantities are limited and can be restricted at any time.