| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| IL DEPT OF CORRECTIONS/LAWRENCE COUNTY | airport | United States | 38.73 | -87.91 | 490 | 0 | |
| IL EMERGENCY OPERATIONS CENTER | airport | United States | 39.61 | -89.60 | 590 | 0 | |
| IL STATE POLICE DISTRICT 22 | airport | United States | 37.27 | -89.16 | 335 | 0 | |
| IL.DEPT OF TRANSPORTATION | airport | United States | 42.02 | -88.28 | 730 | 0 | |
| ILA (Illaga Airport) | airport | -3.98 | 137.62 | 7989 | 0 | ||
| ILAM | airport | Iran | 33.59 | 46.40 | 4404 | 0 | |
| ILCO LANDING AREA | airport | United States | 46.61 | -69.53 | 1031 | 0 | |
| ILD (Lleida-Alguaire Airport) | airport | 41.73 | 0.54 | 1170 | 0 | ||
| ILE (SKYLARK FLD) | airport | United States | 31.09 | -97.69 | 848 | 0 | |
| ILE D YEU | airport | France | 46.72 | -2.39 | 79 | 0 | |
| ILE DE RE | airport | France | 46.18 | -1.20 | 74 | 0 | |
| ILE DES PINS | airport | New Caledonia | -22.59 | 167.46 | 315 | 0 | |
| ILES DE LA MADELEINE | airport | Canada | 47.42 | -61.78 | 35 | 0 | |
| ILF (Ilford Airport) | airport | 56.06 | -95.61 | 642 | 0 | ||
| ILG (NEW CASTLE) | airport | United States | 39.68 | -75.61 | 79 | 0 | |
| ILH (Illesheim Air Base) | airport | 49.47 | 10.39 | 1079 | 0 | ||
| ILHA DO CARACARA | airport | Brazil | -17.46 | -56.84 | 610 | 0 | |
| ILHEUS | airport | Brazil | -14.82 | -39.03 | 15 | 0 | |
| ILI (ILIAMNA) | airport | United States | 59.75 | -154.91 | 186 | 0 | |
| ILIAMNA | airport | United States | 59.75 | -154.91 | 186 | 0 | |
| ILIGAN | airport | Philippines | 8.13 | 124.21 | 1300 | 0 | |
| ILK (Atsinanana Airport) | airport | -19.58 | 48.80 | 33 | 0 | ||
| ILL (WILLMAR MUNI) | airport | United States | 45.12 | -95.13 | 812 | 0 | |
| ILLINI COMMUNITY HOSPITAL | airport | United States | 39.61 | -90.81 | 740 | 0 | |
| ILLINOIS DEPT OF TRANSPORTATION NR 6 | airport | United States | 39.78 | -89.78 | 630 | 0 | |
| ILLINOIS VALLEY | airport | United States | 42.10 | -123.68 | 1394 | 0 | |
| ILLINOIS VALLEY COMMUNITY HOSPITAL | airport | United States | 41.33 | -89.12 | 600 | 0 | |
| ILLINOIS VALLEY PARACHUTE CLUB | airport | United States | 40.44 | -89.36 | 646 | 0 | |
| ILLINOIS VALLEY RGNL | airport | United States | 41.35 | -89.15 | 654 | 0 | |
| ILLIZI | airport | Algeria | 26.57 | 8.48 | 1778 | 0 | |
| ILLIZI TAKHAMALT | airport | Algeria | 26.72 | 8.62 | 1778 | 0 | |
| ILM (WILMINGTON INTL) | airport | United States | 34.27 | -77.90 | 32 | 0 | |
| ILN (AIRBORNE AIRPARK) | airport | United States | 39.43 | -83.79 | 1077 | 0 | |
| ILO | airport | Peru | -17.70 | -71.34 | 72 | 0 | |
| ILO (ILOILO) | airport | Philippines | 10.71 | 122.55 | 27 | 0 | |
| ILOILO | airport | Philippines | 10.71 | 122.55 | 27 | 0 | |
| ILOPANGO INTL | airport | El Salvador | 13.70 | -89.12 | 2021 | 0 | |
| ILORIN | airport | Nigeria | 8.44 | 4.49 | 1126 | 0 | |
| ILP (ILE DES PINS) | airport | New Caledonia | -22.59 | 167.46 | 315 | 0 | |
| ILQ (ILO) | airport | Peru | -17.70 | -71.34 | 72 | 0 | |
| ILR (ILORIN) | airport | Nigeria | 8.44 | 4.49 | 1126 | 0 | |
| ILU (Kilaguni Airport) | airport | -2.91 | 38.07 | 2750 | 0 | ||
| ILX (Ileg Airport) | airport | -5.49 | 145.80 | 60 | 0 | ||
| ILY (ISLAY) | airport | United Kingdom | 55.68 | -6.26 | 56 | 0 | |
| ILZ (ZILINA) | airport | Slovakia | 49.23 | 18.61 | 1020 | 0 | |
| ILondon | city | United Kingdom | 51.51 | -0.09 | 55 | 735279 |