
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 GBP
| Annual Avg. Price | 481 GBP |
| December 2026 | 535 GBP |
| January 2027 | 474 GBP |
| February 2027 | 412 GBP |
| March 2027 | 432 GBP |
| April 2027 | 478 GBP |
| May 2027 | 475 GBP |
| June 2027 | 486 GBP |
| July 2027 | 553 GBP |
| August 2027 | 553 GBP |
| September 2027 | 427 GBP |
| October 2027 | 475 GBP |
| November 2027 | 470 GBP |
Major airports in Illinois
Illinois - popular routes
- London to Chicago from £999
- Mexico City to Chicago from £150
- Guadalajara to Chicago from £144
- Dallas to Chicago from £114
- Atlanta to Chicago from £91
- Los Angeles to Chicago from £164
- Houston to Chicago from £125
- León to Chicago from £141
- Orlando to Chicago from £89
- San Francisco to Chicago from £215
- Philadelphia to Chicago from £80
- Tampa to Chicago from £128
- Monterrey to Chicago from £133
- Seattle to Chicago from £105
- Las Vegas to Chicago from £130
- Phoenix to Chicago from £121
- Denver to Chicago from £45
- Washington, D.C. to Chicago from £140
- Fort Lauderdale to Chicago from £52
- Toronto to Chicago from £110
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