-	Adult	Child (5–12)	Who skis free: Ages 4 and younger. Who skis at a discount: Seniors 65 and older pay $68 per day. Prices are lower during early and late seasons. All-day guided snowcat skiing is $81 per person; one-way rides to Outback Bowls are $5. Vail, which owns Keystone, offers PEAKS discounted tickets.Best discount tip: Make an online purchase of a three-day or more ticket at least seven days in advance. Membership in PEAKS is free. Check the resort's website for more information. Interchangeability: Multiday lift tickets of three or more days also are valid at sister resorts Vail, Beaver Creek and Breckenridge and at nearby Arapahoe Basin.
One day	$78	$39
Three days	$234 ($78/day)	$117 ($39/day)
Five days	$390 ($78/day)	$195 ($39/day)