American Airlines, Branson Air Express, Delta Air Lines, JetBlue Airways and Southwest Airlines are the five airlines serving William P. Hobby Airport in Houston, as of October 2015. The airport is a major destination for Southwest Airlines, which accounted for over 90 percent of the airport's passenger traffic in 2013 and 2014. In addition to serving numerous domestic locations from the airport, Southwest built a new international terminal building and began international flights from Hobby Airport in 2015.
William P. Hobby Airport is Houston's secondary passenger airport. The airport served as Houston's main airport until Houston Intercontinental Airport (later renamed George Bush Intercontinental Airport) opened in 1969. All scheduled service into Houston moved to the new airport until Southwest Airlines began flying to Hobby Airport in 1971. Hobby Airport served a total of 11.9 million passengers in 2014, accounting for 22 percent of passenger traffic to and from Houston.
Some of the most popular destinations for flights originating at Hobby Airport include Atlanta, Los Angeles, New York City and Austin, Texas. Southwest's international flights to Aruba in 2015 were the first scheduled international service at the airport since 1969. Southwest expects to add 1 million international passengers a year to the airport in the future.