HOUSTON -

Houston's Hobby Airport is on its way to becoming an international airport.

Houston City Council approved the Hobby Airport expansion on Wednesday.  According to Houston Airport System officials, the name of the airport will not change. 

Southwest Airlines plans to expand Houston's smaller airport so it can fly to Mexico, Central America, the Caribbean and South America. The airline said it will pay $100 million for a five-gate expansion, customs facility and new employees at Hobby so the airline can run international flights as early as 2015.