ICAO : The location indicator assigned by the International Civil Aviation Organization (ICAO).
ICAO : The location indicator assigned by the International Civil Aviation Organization (ICAO).ICAO code consists of 4 letters. Certain classifications among countries and regions are used in creating these codes. The first letter stands for the region in which the airport is located, the second is for the country. The other two letters are generally given in order
This is a list of Airports in ILLINOIS with sorting by city
| State | City | Airport name | Code ICAO |
|---|---|---|---|
| Illinois | Belleville | MidAmerica St. Louis Airport | KBLV |
| Illinois | Belleville | MidAmerica St. Louis Airport | KBLV |
| Illinois | Bloomington | Central Illinois Regional Airport at Bloomington-Normal | KBMI |
| Illinois | Bloomington | Central Illinois Regional Airport at Bloomington-Normal | KBMI |
| Illinois | Champaign (Savoy) | Willard Airport | KCMI |
| Illinois | Champaign (Savoy) | Willard Airport | KCMI |
| Illinois | Chicago | Chicago O'Hare International Airport | KORD |
| Illinois | Chicago | Chicago Midway International Airport | KMDW |
| Illinois | Chicago | Chicago O'Hare International Airport | KORD |
| Illinois | Chicago | Chicago Midway International Airport | KMDW |
| Illinois | Marion | Veterans Airport of Southern Illinois | KMWA |
| Illinois | Marion | Veterans Airport of Southern Illinois | KMWA |
| Illinois | Moline | Quad Cities International Airport | KMLI |
| Illinois | Moline | Quad Cities International Airport | KMLI |
| Illinois | Peoria | General Wayne A. Downing Peoria International Airport | KPIA |
| Illinois | Peoria | General Wayne A. Downing Peoria International Airport | KPIA |
| Illinois | Quincy | Quincy Regional Airport (Baldwin Field) | KUIN |
| Illinois | Quincy | Quincy Regional Airport (Baldwin Field) | KUIN |
| Illinois | Rockford | Chicago Rockford International Airport | KRFD |
| Illinois | Rockford | Chicago Rockford International Airport | KRFD |
| Illinois | Springfield | Abraham Lincoln Capital Airport | KSPI |
| Illinois | Springfield | Abraham Lincoln Capital Airport | KSPI |