Chicago O'Hare International Airport - ORD
- Flight status, terminal maps, future plans, history, photo gallery, and information on the concessions, ground transportation, parking and airlines.
- http://www.flychicago.com/Ohare/OhareHomepage.shtm

Jacksonville Municipal Airport
- Runway and pilot information. Includes fuel prices, airport services and vendors, and courtesy car availability.
- http://www.csj.net/~ijx/

Chicago - Aurora Municipal Airport - ARR
- Reliever airport facilities for O'Hare (ORD) and Midway (MDW). Includes executive flight services, logistics, accessibility, ground support service and safety with Fixed Base Operator (FBO). Also, offers recreational and sport aviation, and location maps
- http://www.auroraairport.com/

Champaign - Urbana Willard Airport - CMI
- Serving east central Illinois; with flight information, fares, directions, parking, maps, and weather.
- http://www.willardairport.com/

Greater Peoria Regional Airport (KPIA)
- Serving central Illinois; with summary of services, news, flight information, ground transportation information, and directions.
- http://www.flypia.com/

DuPage Airport - DPA
- Includes directions and history, flight and real estate information, regulations, and flight center services.
- http://www.dupageairport.com/

Chicago/Waukegan Regional Airport - UGN
- General aviation reliever facility for Chicago's O'Hare International. General information on the services, map, contacts, history, pictures and links.
- http://www.waukeganport.com/wkgn_airport/

AirNav.Com
- Listing of airports by city. Includes location and map, operations, services, communication aids, navigation and runway details, and contacts.
- http://www.airnav.com/airports/us/IL

Mount Vernon Airport - MVN
- Pilot data and runway information, maps, and listings for nearby lodging.
- http://www.mtvernonairport.com/

Belleville/Scott Air Force Base/MidAmerica Airport - BLV
- Features flight information, layout, parking, ground transportation, weather, FAQs, facts and related links.
- http://www.flymidamerica.com/

Chicago/Friends of Merrill C Meigs Airport - CGX
- Unofficial home page of Chicago's downtown lakefront facility. General information, including current legislation, becoming a member, news, events, history, volunteers, live air traffic control, web cam and online store.
- http://www.friendsofmeigs.org/

Chicago/Romeoville/Lewis University Airport - LOT
- Corporate field. Includes layout, area maps, lodgings, attractions, photo gallery, development opportunities, and information for pilots and on the services.
- http://www.flylot.com/

Moline/Quad City International Airport - MLI
- Overview of the facilities, services, and airlines, plus news, tourist information, maps, directions, photo gallery and FAQs.
- http://www.qcairport.com/

Bloomington-Normal/Central Illinois Regional Airport - BMI
- Flight schedules, directions, press releases, newsletters airfares, and information on future plans can be found.
- http://www.cira.com/