A domestic Terminal 1 with Concourses A and C and an international Terminal 2 with Concourse E make up the terminal complex at St. Louis Airport. The STL airport's Domestic Terminal 1 has two levels: the Lower Level houses Concourses A and C and baggage claim, while the Upper Level houses ticketing services and baggage check.
For more visit :
https://www.contactforsupport.....com/airlines/delta-a