1 Top-50 Airport · 77.8M Pax/yr

Major Airports in Colorado

Colorado hosts 1 of the 50 busiest U.S. commercial airports, moving a combined 77.8 million passengers per year. The list below is ranked by national passenger volume — the airport at the top is the busiest in the state.

Choosing the right Colorado airport for your trip

Colorado is served principally by Denver International Airport, the state's primary commercial gateway. Travelers can also consider out-of-state airports within reasonable driving distance — sometimes a flight from a neighboring state's airport offers cheaper fares or more nonstop options at the cost of an extra hour on the road. Always compare total trip cost (airfare plus parking plus ground transportation) and total trip time, not just headline airfare, when deciding where to fly.

Hub airline service in Colorado is anchored by United Airlines, Southwest Airlines, and Frontier Airlines. Hub carriers concentrate connecting traffic, schedule waves of arrivals and departures to minimize layover time, and operate dedicated gate clusters and lounges. Travelers based in Colorado typically have the deepest nonstop network from the hub airport in the state.

Ground transportation in Colorado

Each Colorado airport has its own mix of rideshare, taxi, public transit, and rental car options. Where the local transit authority operates a rail link to the airport (rare in some states, near-universal in others), it is almost always the cheapest and most predictable way to reach the city center. Where rail does not exist, regional bus service typically connects each terminal to the broader network, and rideshare provides the fastest door-to-door option. Rental car centers at most major Colorado airports are consolidated into a single off-terminal facility reached by a frequent shuttle.

Drive times between Colorado airports and your specific destination depend heavily on time of day; morning and afternoon rush hours can double the driving time relative to off-peak conditions.

All top-50 airports in Colorado

RankIATAAirportCityRegionPax/yr
#5 DEN Denver International Airport Denver Mountain West 77.8M