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 | 175 USD |
| October 2026 | 44 USD |
| November 2026 | 163 USD |
| December 2026 | 44 USD |
| January 2027 | 54 USD |
| February 2027 | 147 USD |
| March 2027 | 147 USD |
| April 2027 | 56 USD |
| May 2027 | 75 USD |
| June 2027 | 105 USD |
| July 2027 | 99 USD |
| August 2027 | 99 USD |
| September 2027 | 1070 USD |
Major airports in Illinois
Illinois - popular routes
- Mexico City to Chicago from $168
- New York to Chicago from $165
- Guadalajara to Chicago from $170
- Dallas to Chicago from $80
- Houston to Chicago from $122
- Atlanta to Chicago from $47
- Los Angeles to Chicago from $79
- Morelia to Chicago from $233
- Orlando to Chicago from $73
- Philadelphia to Chicago from $166
- León to Chicago from $221
- Tampa to Chicago from $189
- San Francisco to Chicago from $247
- Miami to Chicago from $267
- Denver to Chicago from $155
- Phoenix to Chicago from $139
- Seattle to Chicago from $239
- Monterrey to Chicago from $285
- Las Vegas to Chicago from $137
- Washington, D.C. to Chicago from $142
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