Vistors to St. Louis have a variety of options on how to arrive and depart the area. Here's a quick overview:

By Air: Visitors flying into town will arrive at one of Lambert - St. Louis International Airport’s two terminals.  About a dozen major U.S. airlines have service here, as do numerous standard rental car companies.  For those renting a car, the airport is located off of Interstate 70, about 20 miles west of downtown, and within a few miles of the I-170 and I-270 interchanges.  Those not renting a car have the option of taking the MetroLink, the city’s light rail system, which has stations at the airport’s terminals.  Another option is to leave the airport by bus via the MetroBus Lambert Busport station.  Finally, numerous taxis are readily available at the terminals

Aside from Lambert, two smaller and alternate airports include the "St. Louis Downtown Airport" (which is actually located in Cahokia, Illinois, and MidAmerica Airport, a full-size runaway airport that currently lacks any commerical flights.

By Road/Car: St. Louis is within a day’s drive from Chicago, Indianapolis, Louisville, Nashville, Memphis, and Kansas City, so visitors within that radius may find driving in to be a convenient option.

By Train: As an alternative to flying, Amtrak has two train stations in the St. Louis metro area, one located downtown on 16th St., and one in Kirkwood, near the I-44/I-270 interchange, about 20 miles west of downtown.

By Boat: While it is technically possible to arrive or depart St. Louis via a boat, there is essentially no commerical boating transportation service to or from St. Louis, aside from one tourist boat that take passengers on cruises up & down the Mississippi River. Even if you wanted to use your own boat to arrive and depart St. Louis, this is no dock or any facilities to help you do ouh a task.