by the mid-1990s, ata began focusing on increasing its domestic scheduled services including hawaii as well as international routes to mexico and the caribbean (based on leisure travel) and began using the slogan, "on ata, you're on vacation." the airline began operating a sizable hub at chicago midway international airport, and offered scheduled services throughout the united states, as well as flights to hawaii, mexico and the caribbean while continuing extensive military and government contract air charter flights.