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 | 148 USD |
| September 2026 | 45 USD |
| October 2026 | 129 USD |
| November 2026 | 45 USD |
| December 2026 | 125 USD |
| January 2027 | 55 USD |
| February 2027 | 202 USD |
| March 2027 | 206 USD |
| April 2027 | 88 USD |
| May 2027 | 77 USD |
| June 2027 | 544 USD |
| July 2027 | 114 USD |
Major airports in Illinois
Illinois - popular routes
- Mexico City to Chicago from $238
- New York to Chicago from $142
- Guadalajara to Chicago from $221
- Dallas to Chicago from $126
- Houston to Chicago from $79
- Atlanta to Chicago from $86
- Los Angeles to Chicago from $118
- Morelia to Chicago from $327
- Orlando to Chicago from $91
- Philadelphia to Chicago from $164
- León to Chicago from $342
- Tampa to Chicago from $150
- San Francisco to Chicago from $302
- Miami to Chicago from $214
- Denver to Chicago from $169
- Phoenix to Chicago from $187
- Seattle to Chicago from $229
- Monterrey to Chicago from $301
- Las Vegas to Chicago from $165
- Washington, D.C. to Chicago from $210
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