Route Reliability
COU → Chicago
COU–ORD · 315 miles · COU Airport to Chicago O'Hare International Airport
- 73%
- Arrive within 15 minutes
- 17 min
- Average arrival delay
- 3.5%
- Cancelled
- 1,812
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.American Airlines76%1,119 flights
- 2.United Airlines68%693 flights
What the data says
Morning-you made the right choice.
COU–ORD flights departing between 6–9 AM arrived on time 81% of the time, versus 56% between 6–9 PM.
Sunday scaries are real for this one.
COU–ORD flights arrived on time 76% of the time on Wednesdays. On Sundays: 66%.
American Airlines runs this route best.
American Airlines arrived on time 76% of the time on this route; United Airlines managed 68%.
Keep a backup plan handy.
This route was cancelled 3.5% 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
- Mon75%(259 flights)
- Tue71%(240 flights)
- Wed76%(240 flights)
- Thu74%(258 flights)
- Fri72%(260 flights)
- Sat76%(226 flights)
- Sun66%(260 flights)
- 3–6 AM78%(18 flights)
- 6–9 AM81%(593 flights)
- 9 AM–12 PM72%(417 flights)
- 12–3 PM78%(156 flights)
- 3–6 PM69%(324 flights)
- 6–9 PM56%(235 flights)
Jun 74% → May 79% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 74% | 82 |
| July 2025 | 70% | 81 |
| August 2025 | 70% | 74 |
| September 2025 | 76% | 106 |
| October 2025 | 74% | 179 |
| November 2025 | 77% | 153 |
| December 2025 | 60% | 196 |
| January 2026 | 72% | 177 |
| February 2026 | 82% | 163 |
| March 2026 | 68% | 169 |
| April 2026 | 72% | 184 |
| May 2026 | 79% | 179 |
Keep nerding
Based on 1,812 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.