Southwest Airlines decided to give up two of its four slots at Mexico City’s Airport as it decides to shift its focus to more leisure-friendly destinations. 

The Dallas-based airline won the four additional spots for takeoff and landing rights earlier this year after Delta Airlines and Aeromexico were forced to give them up. Two of Southwest’s four slots were used to add flights from Houston. The other two were for flights from Fort Lauderdale and Los Angelis to Mexico City. The airline decided to give them up for free, since it is reorganizing its international growth. Southwest has added services to 16 destinations since 2014. 

This week, the U.S. Department of Transportation reallocated the two slots vacated by Southwest to Mexican low-cost carrier VivaAerobus.