By Plane

Denver International Airport (DIA) is 23 miles northeast of downtown, usually a 35- to 45-minute drive. Covering 53 square miles (twice the size of Manhattan), DIA has one of the tallest flight-control towers in the world, at 327 feet. The airport, which has 95 gates and six full-service runways, can handle around 50 million passengers annually.

Major national airlines serving Denver include American, Delta, Frontier, JetBlue, Southwest, United, and US Airways. International airlines include Air Canada, British Airways, Lufthansa, and Mexicana de Aviación.

Regional and commuter airlines connecting Denver with other points in the Rockies and Southwest include Alaska Airlines and Great Lakes Airlines.

For other information, call the Denver International Airport information line (tel. 800/AIR-2-DEN [247-2336] or 303/342-2000; TDD 800/688-1333; www.flydenver.com). Other important airport phone numbers include ground transportation, tel. 303/342-4059; lost and found, tel. 303/342-4062; paging, tel. 303/342-2300; parking, tel. 303/342-7275; police, tel. 303/342-4211; and security wait times, tel. 303/342-8477.

Getting to & from the Airport -- Bus, taxi, and limousine services shuttle travelers between the airport and downtown, and most major car-rental companies have outlets at the airport. Because many major hotels are some distance from the airport, travelers should check on the availability and cost of hotel shuttle services when making reservations.

The city bus fare from the airport to downtown Denver is $11; from the airport to Boulder and suburban Park-n-Ride lots, it is about $13. The SuperShuttle ([tel] 800/258-3826; www.supershuttle.com) provides transportation to and from a number of hotels downtown and in the Denver Tech Center. The SuperShuttle has frequent scheduled service between the airport and downtown hotels for $22 per person each way. Taxi companies are another option, with fares generally in the $50 to $60 range, and you can often share a cab and split the fare by calling the cab company ahead of time. For instance, Yellow Cab ([tel] 303/777-7777; www.yellowtrans.com) will take up to five people from DIA to most downtown hotels for a flat rate of $51.

By Car

The principal highway routes into Denver are I-25 from the north (Fort Collins and Wyoming) and south (Colorado Springs and New Mexico), I-70 from the east (Burlington and Kansas) and west (Grand Junction and Utah), and I-76 from the northeast (Nebraska). If you’re driving into Denver from Boulder, take U.S. 36; from Salida and southwest, U.S. 285.

By Train

Amtrak serves Union Station, 17th and Wynkoop streets (tel. 800/USA-RAIL [872-7245] or 303/825-2583; www.amtrak.com), in the lower downtown historic district. Denver is a stop for the California Zephyr (Chicago to Emeryville, California); there is one train daily in each direction.

By Bus

Greyhound, 1055 19th St. (at Arapahoe St.; tel. 800/231-2222; www.greyhound.com), is the major bus service in Colorado, with about 60 daily arrivals and departures to communities in and out of the state.

Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.