Route Reliability
Chicago → MLI
ORD–MLI · 139 miles · Chicago O'Hare International Airport to MLI Airport
- 69%
- Arrive within 15 minutes
- 18 min
- Average arrival delay
- 3.7%
- Cancelled
- 2,752
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.United Airlines70%1,744 flights
- 2.American Airlines68%1,008 flights
What the data says
Morning flights do better here.
ORD–MLI flights departing between 9 AM–12 PM arrived on time 78% of the time, versus 62% between 9 PM–12 AM.
Friday is doing you no favors.
ORD–MLI flights arrived on time 78% of the time on Tuesdays. On Fridays: 63%.
Not much between United Airlines and American Airlines.
On this route they all land within 68% to 70% on time. Pick on schedule and price.
Keep a backup plan handy.
This route was cancelled 3.7% of the time. Typical for U.S. flights is around 1–2%.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon64%(388 flights)
- Tue78%(362 flights)
- Wed71%(376 flights)
- Thu71%(394 flights)
- Fri63%(382 flights)
- Sat68%(346 flights)
- Sun72%(396 flights)
- 6–9 AM70%(195 flights)
- 9 AM–12 PM78%(601 flights)
- 12–3 PM68%(414 flights)
- 3–6 PM66%(610 flights)
- 6–9 PM71%(424 flights)
- 9 PM–12 AM62%(400 flights)
Jun 75% → May 72% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 75% | 218 |
| July 2025 | 61% | 202 |
| August 2025 | 77% | 210 |
| September 2025 | 86% | 220 |
| October 2025 | 69% | 243 |
| November 2025 | 77% | 211 |
| December 2025 | 56% | 207 |
| January 2026 | 63% | 178 |
| February 2026 | 65% | 209 |
| March 2026 | 63% | 215 |
| April 2026 | 67% | 237 |
| May 2026 | 72% | 294 |
Keep nerding
Based on 2,752 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.