- Save on flights to the USA & Canada, including New York
- Fly from the UK (via Dublin) from £229 one-way incl. taxes
- No Aer Lingus promo code required
- Travel before 31st October 2017 (inclusive)
Illinois airport weather averages
Illinois airport weather averages show to temperature, rainfall and sunshine figures for every month of the year. Select an airport from the list below and check the weather at Illinois airports, USA before you book your next flight.
| Code | City | Airport |
|---|---|---|
| BLV | Belleville | Scott AFB / Mid America |
| BMI | Bloomington-Normal | Bloomington-Normal Airport |
| CMI | Champaign | Willard University Airport |
| PWK | Chicago | Chicago Executive Airport |
| MDW | Chicago | Midway Airport |
| ORD | Chicago | O'Hare International Airport |
| DEC | Decatur | Decatur Airport |
| MWA | Marion | Williamson County Airport |
| MLI | Moline | Quad-City Airport |
| PIA | Peoria | Greater Peoria Airport |
| UIN | Quincy | Quincy Municipal Airport |
| RFD | Rockford | Greater Rockford Airport |
| SPI | Springfield | Capital Airport |