Traveling to Houston, Texas from abroad is best done by flying into Bush International Airport (IAH) located on the northeast side of the city with bus, taxi and shuttle service into the main centers of the city (Downtown, Medical Center, Galleria-Uptown).
ROA is located on the west side of Houston in the Westchase area. There is metro-bus service one block from the school at the corner of Rodgerdale and Richmond Ave.
Houston is a major international port of entry to the United States. It has one of the major immigration and custom centers for the US.
If Houston is not your original port of entry to the US you may also arrive at the Houston-Hobby Airport (HOU). This is a smaller national airport with some limited international travel. You may travel from all other major US cities such as New York, Los Angeles, Washington, DC, Chicago to Houston to this airport.