Route Reliability
Chicago → Rochester
ORD–ROC · 528 miles · Chicago O'Hare International Airport to Frederick Douglass Greater Rochester International Airport
- 75%
- Arrive within 15 minutes
- 10 min
- Average arrival delay
- 2.0%
- Cancelled
- 2,458
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.American Airlines78%1,145 flights
- 2.United Airlines73%1,313 flights
What the data says
Morning flights do better here.
ORD–ROC flights departing between 6–9 AM arrived on time 86% of the time, versus 67% between 12–3 PM.
Sunday scaries are real for this one.
ORD–ROC flights arrived on time 80% of the time on Thursdays. On Sundays: 68%.
American Airlines has a slight edge here.
American Airlines arrived on time 78% of the time on this route; United Airlines managed 73%.
Trending in the right direction.
ORD–ROC flights arrived on time 76% of the time over the last three months in the data, compared with 67% in the three months before that.
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
- Mon76%(358 flights)
- Tue79%(346 flights)
- Wed75%(344 flights)
- Thu80%(351 flights)
- Fri74%(348 flights)
- Sat76%(299 flights)
- Sun68%(357 flights)
- 6–9 AM86%(528 flights)
- 9 AM–12 PM84%(454 flights)
- 12–3 PM67%(433 flights)
- 3–6 PM74%(322 flights)
- 6–9 PM68%(570 flights)
- 9 PM–12 AM68%(96 flights)
Jun 79% → May 83% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 79% | 215 |
| July 2025 | 76% | 206 |
| August 2025 | 78% | 197 |
| September 2025 | 83% | 212 |
| October 2025 | 79% | 227 |
| November 2025 | 77% | 217 |
| December 2025 | 67% | 200 |
| January 2026 | 69% | 155 |
| February 2026 | 65% | 158 |
| March 2026 | 73% | 176 |
| April 2026 | 72% | 219 |
| May 2026 | 83% | 221 |
Same trip, other airports
Keep nerding
Based on 2,458 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.