What do San Angelo Regional Airport and Abraham Lincoln Capital Airport have in common? 
San Angelo Regional Airport: San Angelo Regional Airport (IATA: SJT, ICAO: KSJT, FAA LID: SJT) , also known as Mathis Field, is a public airport serving the city of San Angelo, in Tom Green County, Texas, USA. Abraham Lincoln Capital Airport: Abraham Lincoln Capital Airport (IATA: SPI, ICAO: KSPI, FAA LID: SPI) is a civil-military public airport in Sangamon County, Illinois.
public airport