Route · ORD → ROC · 2020–2025 BTS data
Chicago to Rochester
The ORD–ROC corridor (Chicago, IL → Rochester, NY) runs ahead of the national average, served by 33 carriers across roughly 528 miles.
Data updated 2026-06-13
- 81%
- On-time
- +2 pts
- vs US avg
- 67 min
- Delay when late
- 9,405
- Flights
Cancelled
1.3%
Best Month
Mar 2024 90%
Worst Month
May 2024 63%
Distance
528 mi
Carriers
33
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 193 | 65 | 7 | 0 | YX,MQ,UA |
| Nov 2025 | 225 | 50 | 6 | 2 | OO,UA,MQ,YX |
| Oct 2025 | 178 | 42 | 0 | 1 | OO,UA,YX,MQ |
| Sep 2025 | 201 | 38 | 1 | 0 | MQ,UA,OO,YX |
| Aug 2025 | 191 | 41 | 5 | 0 | OO,YX,MQ,UA |
| Jul 2025 | 201 | 51 | 3 | 0 | UA,YX,MQ |
| Jun 2025 | 165 | 36 | 1 | 0 | UA,YX,MQ |
| May 2025 | 169 | 25 | 1 | 0 | OO,UA,YX,MQ |
| Apr 2025 | 172 | 24 | 4 | 0 | MQ,OO,UA,YX |
| Mar 2025 | 149 | 37 | 1 | 0 | YX,OO,UA,MQ |
| Feb 2025 | 121 | 35 | 1 | 1 | UA,YX,MQ |
| Jan 2025 | 127 | 30 | 2 | 0 | YX,UA,MQ |
| Dec 2024 | 153 | 37 | 1 | 0 | MQ,UA,YX |
| Nov 2024 | 132 | 18 | 0 | 0 | UA,MQ,YX |
| Oct 2024 | 142 | 20 | 0 | 0 | UA,MQ |
| Sep 2024 | 149 | 22 | 0 | 0 | UA,MQ |
| Aug 2024 | 160 | 46 | 2 | 1 | MQ,OO,UA |
| Jul 2024 | 141 | 44 | 1 | 1 | MQ,OO,UA |
| Jun 2024 | 95 | 21 | 0 | 0 | MQ,UA |
| May 2024 | 142 | 53 | 1 | 0 | MQ,OO,UA |
| Apr 2024 | 139 | 23 | 0 | 0 | MQ,OO,UA,YX |
| Mar 2024 | 96 | 10 | 0 | 0 | MQ,OO,UA,YX |
| Feb 2024 | 120 | 19 | 0 | 1 | MQ,OO,UA,YX |
| Jan 2024 | 127 | 31 | 10 | 1 | MQ,YX,OO,UA |
Cancellation Rate
1.3%
47 of 3,688 flights
Diversion Rate
0.2%
8 of 3,688 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
ORD - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Origin airport →ROC - Rochester
Full on-time, delay-cause, and seasonal performance for Rochester, NY.
Destination airport →Compare the two airports
See ORD and ROC side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to ORD–ROC.
Routes with a similar on-time rate
What the Data Says About ORD to ROC
9,405 tracked flights put the ORD to ROC pairing (Chicago to Rochester) at a 81% on-time rate, squarely in line with the wider network. Delays that do occur run 67.1 minutes on average. Across the 528-mile route and its 33 carriers, the trailing 24 months show 1.3% cancelled and 0.2% diverted (3,688 flights sampled).
The monthly split is wide on this route: Mar 2024 posted the strongest performance at 90% on-time, while May 2024 came in at just 63% - a 27-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from ORD to ROC? ▼
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.