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US state · ranked by public data
Airports in Illinois (2026): 4 airports ranked
4 airports in Illinois on Airports Ranked. Ranked by FAA final calendar-2025 passenger boardings (enplanements) when present in our extract; smaller fields without a transcribed enplanement sit in the unranked list. Official on-airport parking rates are shown only when we copied them from the airport's own page. Compiled Nov 1, 2026.
Checked Nov 1, 2026
#1 in Busiest airports in Illinois · ranked by public data: ORD Chicago O'Hare International Airport.
| Rank | Airport | Passengers | Cheapest parking | Rentals | Hotels | Guides |
|---|---|---|---|---|---|---|
| 1 | ORD Chicago O'Hare International Airport Chicago, IL | 40,680,735 | $16/day Economy Lot G | 11 | 25 | parking · rental · hotels |
| 2 | MDW Chicago Midway International Airport Chicago, IL | 9,367,712 | $15/day Economy Parking | 6 | 17 | parking · rental · hotels |
| 3 | PIA General Wayne A. Downing Peoria International Airport Peoria, IL | 400,503 | check official site | 0 | 22 | parking · rental · hotels |
| 4 | MLI Quad City International Airport Moline, IL | 342,129 | check official site | 0 | 15 | parking · rental · hotels |
All US states · United States · North America
FAQ
What airports are in Illinois?
We list 4: ORD (Chicago), MDW (Chicago), PIA (Peoria), MLI (Moline).
Which is the busiest airport in Illinois?
#1 in Busiest airports in Illinois · ranked by public data is Chicago O'Hare International Airport (ORD) with 40,680,735 FAA CY2025 enplanements.
Cheapest official airport parking in Illinois?
MDW: Economy Parking at $15/day (official page checked Oct 26, 2026).