Here are some alternatives if you want to leave the driving and parking to somebody else.
By air — United Express (operated by Mesa Airlines) offers commercial shuttle flights between DIA and the Cheyenne Municipal Airport and Laramie Regional Airport. (Call (800) 241-6522 for schedules and reservations). United Express recently suspended service to Fort Collins/Loveland Airport, but tickets will be honored by Airport Express. Air charter service also is available from airports throughout the Northern Front Range.By shuttle bus — A number of commercial carriers offer regularly scheduled bus or van service between Northern Front Range communities and DIA. In Fort Collins and Loveland, Airport Express, (970) 482-0505, and Shamrock Airport Shuttle (970) 686-9999, provide almost hourly service. In Greeley, Rocky Mountain Shuttle (970) 356-3366, provides regular connections to DIA with stops in LaSalle, Fort Lupton and Brighton. In Cheyenne, Americoach (307) 632-8899, has taken over for Airport Express, while The Shuttle operated by Magic Mountain Tours of Laramie (307) 742-5678, and Cowboy Coach of Laramie (307) 742-7006, (888) 742-7006, are linking Laramie and Cheyenne with new service to DIA.
By public bus — There are no direct public buses from the Northern Front Range, but Denver RTD "SkyRide" service to/from DIA is available from a number of northern Denver metro points, including Boulder (Route AB), Westminster (Wagon Road Park-n-Ride, Route AA), and Thornton (Thornton Park-n-Ride, Route AA). You can also catch RTD buses at Longmont (Route L) and Brighton (Route R) and connect to DIA SkyRides in downtown Denver.
By limo or van — A number of for-hire limousine, van and private car services serve the Front Range, and most travel into Wyoming and even western Nebraska. Among them are Prestige Transportation Services in Fort Collins (970) 221-1890, (800) 215-4667, Continental Limousine in Fort Collins (970) 221-1890, (888) 221-1890, A Summit Experience Limo Service in Loveland (970) 669-9049, Black Pearl Limousine of Windsor (970) 686-5306, Elite Limousine of Laramie (307) 745-5789, and American Transport of Denver (303) 779-8289, (800) 721-8043.