Cheap flights to Illinois, United States
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Cheapest month to fly to Illinois
Explore price trends for trips to Illinois
Showing prices in USD
| Annual Avg. Price | 418 USD |
| July 2026 | 44 USD |
| August 2026 | 44 USD |
| September 2026 | 63 USD |
| October 2026 | 133 USD |
| November 2026 | 44 USD |
| December 2026 | 391 USD |
| January 2027 | 922 USD |
| February 2027 | 625 USD |
| March 2027 | 76 USD |
| April 2027 | 1086 USD |
| May 2027 | 506 USD |
| June 2027 | 1086 USD |
Major airports in Illinois
Illinois - popular routes
- Mexico City to Chicago from $209
- New York to Chicago from $118
- Guadalajara to Chicago from $196
- Dallas to Chicago from $135
- Houston to Chicago from $135
- Atlanta to Chicago from $136
- Los Angeles to Chicago from $181
- Morelia to Chicago from $324
- Orlando to Chicago from $116
- Philadelphia to Chicago from $135
- León to Chicago from $317
- Tampa to Chicago from $109
- San Francisco to Chicago from $176
- Miami to Chicago from $206
- Denver to Chicago from $112
- Phoenix to Chicago from $99
- Seattle to Chicago from $185
- Monterrey to Chicago from $198
- Las Vegas to Chicago from $101
- Washington, D.C. to Chicago from $95
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