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 | 316 USD |
| December 2026 | 55 USD |
| January 2027 | 49 USD |
| February 2027 | 97 USD |
| March 2027 | 30 USD |
| April 2027 | 211 USD |
| May 2027 | 114 USD |
| July 2027 | 583 USD |
| August 2027 | 644 USD |
| September 2027 | 693 USD |
| October 2027 | 214 USD |
| November 2027 | 783 USD |
Major airports in Illinois
Illinois - popular routes
- Mexico City to Chicago from $199
- Guadalajara to Chicago from $190
- Dallas to Chicago from $151
- Houston to Chicago from $166
- Atlanta to Chicago from $121
- Los Angeles to Chicago from $217
- Morelia to Chicago from $192
- Orlando to Chicago from $117
- Philadelphia to Chicago from $106
- León to Chicago from $187
- Tampa to Chicago from $169
- San Francisco to Chicago from $284
- Denver to Chicago from $60
- Phoenix to Chicago from $160
- Seattle to Chicago from $138
- Monterrey to Chicago from $176
- Las Vegas to Chicago from $171
- Washington, D.C. to Chicago from $186
- San Diego to Chicago from $115
- Fort Lauderdale to Chicago from $69
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