Terminals at DSM

One TSA checkpoint gets you to all 18 DSM gates Des Moines International uses a single Passenger Terminal and one shared security checkpoint for Alaska, Allegiant, American, Delta, Frontier, Southwest, and United, so once you’re through screening you can walk the mostly straight concourse end to end in under 10 minutes. Gates are numbered in sequence along one main hallway, so even a gate change from, say, A4 to A14 is an easy short walk instead of a…