George H. Bush Intercontinental Airport (IAH) is America's 8th busiest airport and one of the largest international airports in America in terms of size. If driving, JFK Blvd leads you to an Airport Tollway for the quickest route to Downtown. Car Rentals: Take the Rental Car Shuttle for Avis, Hertz, National and Thrifty car renters who are on or near both airports. Taxis: Houston has the third-largest taxi fleet in the country and four patrons can ride for the price of one. From IAH airport to Downtown costs about $40. Service is provided by Fiesta Cab (713-236-9400), Liberty Cab (713-695-6700), United Cab (713-699-0000) and Yellow Cab (713-236-1111). For the return, you catch always get a taxi at hotels Downtown, Galleria/Post Oak, Texas Medical Center and Greenway Plaza.
 
William Hobby Airport (HOU) is a modernized and expanded regional airport that now receives many regional and national flights. If you are traveling to South, Southwest or Southeast Houston, this may be your best time saving airport choice. If you don't know the local streets well, I-45 freeway should be your only option leaving HOU airport. Car Rentals: service provided by Avis, Hertz, National and Thrifty car renters who are on or near both airports. Taxis: HOU Airport is a better option for points southeast of Downtown, Texas Medical Center, Greenway Plaza and Galveston. Taxis include:

Amtrak station is located at 902 Washington Avenue in downtown Houston. There is no Amtrak Houston-Dallas train service, but the small station serves one train route traveling 3 times per week:

Sunset Limited: Los Angeles-Phoenix-San Antonio-Houston-New Orleans-Mobile-Jacksonville

Houston-Dallas is listed as a U.S. High Speed Rail Corridor by the U.S. Department of Transportation. See this important article about Interstate High Speed Rail.
  

Houston METRORail is a single Light Rail Transit line connecting the Downtown-Midtown-Museum District-Texas Medical Center-Reliant Stadium corridor. A FREE Downtown trolley also connects with METRORail and stops at popular destinations such as the Theater District, Bayou Place, Main Street Square, Shops at Houston Place, Minute Maid Park, Discovery Green and Toyota Center. Houston has 14 transit centers with parking and easy commuter transfers for Bus Rapid Transit.

Houston METRORail on Main Street

Between 2013-16, Houston is opening 5 more METRORail lines, a Commuter Rail Transit line and more Bus Rapid Transit lines to blanket the metro area.

The Hardy Tollway is recommended during commute hours from the I-610 Freeway interchange to IAH airport. I-610 Loop, I-10 and I-45 freeways are crush packed during normal commute hours. The Good News - you can also traverse Harris County quickly via the Sam Houston Tollway by circling Houston 12 miles outside Downtown.

Residents refer to freeways and tollways by name or number:

      Hardy Toll Road
    8 Sam Houston Tollway
  10 Baytown East Freeway/Katy Freeway
  45 North/Gulf Freeway
  59 Eastex/Southwest Freeway
  90 Crosby Highway
225 Pasadena Freeway
288 South Freeway
290 Northwest Freeway
610 East Loop/North Loop/ West Loop/South Loop