KOMA is the ICAO code for Eppley Airfield (IATA OMA), located in Omaha, NE.
Eppley Airfield, also known as Omaha Airport, is an airport in the midwestern United States, located three miles (5 km) northeast of downtown Omaha, Nebraska. On the west bank of the Missouri River in Douglas County, it is the busiest airport in Nebraska, with more arrivals and departures than all other airports in the state combined. It is classified as a medium hub airport by the Federal Aviation Administration (FAA). It is owned and operated by the Omaha Airport Authority (OAA).
Excerpted from Wikipedia, available under the Creative Commons Attribution-ShareAlike License.