Denver sits right where the Great Plains meet the Rocky Mountains, at exactly 5,280 feet, one mile high. Denver International Airport is enormous and sits roughly 25 miles northeast of downtown, farther out than most major-city airports, so build extra time into your connection.
The A-Line Gets You Downtown Without a Car
A commuter rail line runs directly from Denver International to Union Station downtown in about 37 minutes, a genuinely easy way to skip both a rental car and surge-priced rideshare on arrival.
Altitude Changes Your Trip, Not Just the View
At one mile above sea level, alcohol affects you faster, sunburn happens quicker even in cool weather, and travelers arriving from sea level often feel short of breath or mildly fatigued for the first day or two. Drinking extra water on arrival genuinely helps.
Snow Days, Sunny Days
Denver gets real winter snow, but its famous 300-plus days of sunshine a year mean snow often melts within days rather than sticking around. Winter also means ski season: if your trip includes the mountains, expect the I-70 corridor west of Denver to see heavy weekend traffic and occasional weather closures.
Search live fares to Denver above and start planning your mile-high trip.