Celebrating America 250 - Colorado 150
In 2026, Colorado will celebrate a milestone moment — 150 years since we joined the Union and 250 years of American independence!! To mark this historic anniversary, we’re giving you the chance to win $500 in United travel credits — plus an automatic entry for the 150,000 United MileagePlus® miles grand prize — when you check in at participating Passport locations.
Colorado Passports are free, mobile-exclusive passes that reward you for exploring the Centennial State, making it easy and fun to discover Colorado’s vibrant towns, cultural landmarks and local businesses. Explore the Colorado Passports below, and with every stop, you’ll uncover hidden gems, celebrate Colorado’s rich heritage — all while earning prizes and perks along the way.
