William P. Hobby Airport (HOU) is Houston’s second international airport, and has been serving the City of Houston for more than 90 years. Since 2015, HOU has served as the regional international hub for Southwest Airlines, providing nonstop destinations to Mexico, Latin America, and the Caribbean. HOU was the first Houston airport to receive a 4-star rating from Skytrax, and has maintained the award for three years in a row.