| University Of Illinois/Willard → Chicago O'Hare International CMI–ORD | 1,045 | 44,668 | 65% | 135 | Envoy Air | Jan 2025 – Jul 2026 |
| University Of Illinois/Willard → Dallas-Fort Worth International CMI–DFW | 701 | 40,818 | 81% | 692 | Envoy Air | Jan 2025 – Jul 2026 |
| University Of Illinois/Willard → John Glenn Columbus International CMI–CMH | 5 | 212 | 43% | 286 | Republic Airline, Breeze Aviation Group DBA Breeze, United Air Lines Inc. | Oct 2025 – Jan 2026 |
| University Of Illinois/Willard → Baltimore/Washington International Thurgood Marshall CMI–BWI | 4 | 197 | 31% | 622 | Global Crossing Airlines, Inc., JetBlue Airways, Sun Country Airlines d/b/a... | Feb 2025 – Mar 2026 |
| University Of Illinois/Willard → Newark Liberty International CMI–EWR | 4 | 335 | 66% | 745 | Global Crossing Airlines, Inc., Breeze Aviation Group DBA Breeze, United Air Lines Inc. | Jan 2025 – Feb 2026 |
| University Of Illinois/Willard → Los Angeles International CMI–LAX | 4 | 262 | 42% | 1,710 | United Air Lines Inc., Eastern Air Express, LLC (EAX), Global Crossing Airlines, Inc. | Feb 2025 – Feb 2026 |
| University Of Illinois/Willard → Dane County Rgnl/Truax Field CMI–MSN | 4 | 281 | 58% | 221 | Air Wisconsin Airlines Corp, Delta Air Lines Inc., Sun Country Airlines d/b/a... | Feb 2025 – Feb 2026 |
| University Of Illinois/Willard → Hartsfield/Jackson Atlanta International CMI–ATL | 3 | 0 | 0% | 490 | Delta Air Lines Inc. | Sep 2025 – Nov 2025 |
| University Of Illinois/Willard → Boeing Fld/King County International CMI–BFI | 3 | 290 | 60% | 1,763 | Global Crossing Airlines, Inc., Delta Air Lines Inc. | Oct 2025 – Jan 2026 |
| University Of Illinois/Willard → The Eastern Iowa CMI–CID | 3 | 106 | 37% | 220 | Breeze Aviation Group DBA Breeze, Global Crossing Airlines, Inc. | Jan 2026 – Feb 2026 |
| University Of Illinois/Willard → Mahlon Sweet Field CMI–EUG | 3 | 121 | 36% | 1,804 | Eastern Air Express, LLC (EAX), Global Crossing Airlines, Inc., Breeze Aviation Group DBA Breeze | Nov 2025 – Apr 2026 |
| University Of Illinois/Willard → General Mitchell International CMI–MKE | 3 | 0 | 0% | 202 | Air Wisconsin Airlines Corp, Global Crossing Airlines, Inc. | Mar 2025 – Mar 2026 |
| University Of Illinois/Willard → Minneapolis-St Paul Intl/Wold-Chamberlain CMI–MSP | 3 | 0 | 0% | 419 | Eastern Air Express, LLC (EAX), SkyWest Airlines Inc., Sun Country Airlines d/b/a... | Jan 2025 – Jan 2026 |
| University Of Illinois/Willard → Northwest Arkansas Ntl CMI–XNA | 3 | 161 | 41% | 418 | Breeze Aviation Group DBA Breeze, Allegiant Air | Jan 2026 – Mar 2026 |
| University Of Illinois/Willard → Alexandria International CMI–AEX | 2 | 0 | 0% | 647 | Global Crossing Airlines, Inc. | Feb 2025 – Jan 2026 |
| University Of Illinois/Willard → Capital Region International CMI–LAN | 2 | 113 | 39% | 269 | Global Crossing Airlines, Inc., Breeze Aviation Group DBA Breeze | Jan 2025 – Feb 2026 |
| University Of Illinois/Willard → Lincoln CMI–LNK | 2 | 111 | 51% | 450 | Breeze Aviation Group DBA Breeze | Jan 2025 – Jan 2026 |
| University Of Illinois/Willard → Orlando International CMI–MCO | 2 | 44 | 15% | 893 | Global Crossing Airlines, Inc., Breeze Aviation Group DBA Breeze | Oct 2025 – Nov 2025 |
| University Of Illinois/Willard → Miami International CMI–MIA | 2 | 0 | 0% | 1,085 | Global Crossing Airlines, Inc. | Oct 2025 – Feb 2026 |
| University Of Illinois/Willard → Chicago Executive CMI–PWK | 2 | 8 | 44% | 145 | Jet Aviation Flight Services, Inc. | Nov 2025 – Nov 2025 |
| University Of Illinois/Willard → State College CMI–SCE | 2 | 43 | 36% | 552 | Republic Airline, Air Wisconsin Airlines Corp | Jan 2025 – Mar 2026 |
| University Of Illinois/Willard → Tampa International CMI–TPA | 2 | 8 | 50% | 894 | CFM Inc d/b/a Contour... | Feb 2026 – Mar 2026 |
| University Of Illinois/Willard → Laurence G Hanscom Field CMI–BED | 1 | 0 | 0% | 899 | Global Crossing Airlines, Inc. | Mar 2026 – Mar 2026 |
| University Of Illinois/Willard → Nashville International CMI–BNA | 1 | 61 | 56% | 284 | Breeze Aviation Group DBA Breeze | Dec 2025 – Dec 2025 |
| University Of Illinois/Willard → Charlottesville-Albemarle CMI–CHO | 1 | 0 | 0% | 544 | Republic Airline | Jan 2026 – Jan 2026 |
| University Of Illinois/Willard → City Of Colorado Springs Municipal CMI–COS | 1 | 5 | 56% | 882 | Jet Aviation Flight Services, Inc. | Nov 2025 – Nov 2025 |
| University Of Illinois/Willard → Columbia Regional CMI–COU | 1 | 38 | 35% | 227 | Breeze Aviation Group DBA Breeze | Dec 2025 – Dec 2025 |
| University Of Illinois/Willard → Fort Smith Regional CMI–FSM | 1 | 59 | 91% | 465 | Envoy Air | May 2026 – May 2026 |
| University Of Illinois/Willard → Greenville Spartanburg International CMI–GSP | 1 | 133 | 85% | 486 | Allegiant Air | Mar 2026 – Mar 2026 |
| University Of Illinois/Willard → William P Hobby CMI–HOU | 1 | 153 | 85% | 819 | Delta Air Lines Inc. | Mar 2026 – Mar 2026 |
| University Of Illinois/Willard → Valley International CMI–HRL | 1 | 0 | 0% | 1,095 | Global Crossing Airlines, Inc. | Feb 2026 – Feb 2026 |
| University Of Illinois/Willard → Washington Dulles International CMI–IAD | 1 | 0 | 0% | 582 | CFM Inc d/b/a Contour... | May 2026 – May 2026 |
| University Of Illinois/Willard → Lubbock Preston Smith International CMI–LBB | 1 | 54 | 29% | 868 | Sun Country Airlines d/b/a... | Nov 2025 – Nov 2025 |
| University Of Illinois/Willard → Midland International Air And Space Port CMI–MAF | 1 | 51 | 67% | 957 | Envoy Air | Aug 2025 – Aug 2025 |
| University Of Illinois/Willard → Frederick W Smith Intl/Memphis CMI–MEM | 1 | 42 | 84% | 357 | Air Wisconsin Airlines Corp | Nov 2025 – Nov 2025 |
| University Of Illinois/Willard → Quad Cities International CMI–MLI | 1 | 45 | 90% | 152 | Piedmont Airlines | Mar 2026 – Mar 2026 |
| University Of Illinois/Willard → Norfolk International CMI–ORF | 1 | 0 | 0% | 689 | CFM Inc d/b/a Contour... | Mar 2025 – Feb 2026 |
| University Of Illinois/Willard → Dekalb-Peachtree CMI–PDK | 1 | 3 | 33% | 478 | Jet Aviation Flight Services, Inc. | Nov 2025 – Nov 2025 |
| University Of Illinois/Willard → Philadelphia International CMI–PHL | 1 | 53 | 35% | 692 | Global Crossing Airlines, Inc. | Jan 2026 – Jan 2026 |
| University Of Illinois/Willard → Raleigh-Durham International CMI–RDU | 1 | 176 | 75% | 592 | Delta Air Lines Inc. | Sep 2025 – Sep 2025 |
| University Of Illinois/Willard → Orlando Sanford International CMI–SFB | 1 | 0 | 0% | 874 | Global Crossing Airlines, Inc. | Jan 2026 – Jan 2026 |
| University Of Illinois/Willard → Springfield-Branson Ntl CMI–SGF | 1 | 49 | 64% | 337 | Envoy Air | Apr 2026 – Apr 2026 |
| University Of Illinois/Willard → Shreveport Regional CMI–SHV | 1 | 44 | 58% | 608 | Envoy Air | Apr 2025 – Sep 2025 |
| University Of Illinois/Willard → Whiteside County/Jos H Bittorf Field CMI–SQI | 1 | 1 | 12% | 139 | CFM Inc d/b/a Contour... | Jun 2026 – Jun 2026 |
| University Of Illinois/Willard → Sarasota/Bradenton International CMI–SRQ | 1 | 4 | 44% | 931 | Jet Aviation Flight Services, Inc. | Mar 2026 – Mar 2026 |
| University Of Illinois/Willard → Dallas CMI–T8X | 1 | 0 | 0% | 661 | CFM Inc d/b/a Contour... | Jun 2026 – Jun 2026 |
| University Of Illinois/Willard → Tallahassee International CMI–TLH | 1 | 47 | 69% | 701 | Global Crossing Airlines, Inc. | Feb 2025 – Nov 2025 |
| University Of Illinois/Willard → Willow Run CMI–YIP | 1 | 0 | 0% | 291 | Republic Airline | Mar 2025 – Jan 2026 |