Route · ORD → ROC · 2020–2025 BTS data
Chicago to Rochester
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), ORD to ROC (Chicago to Rochester) ranks #1260 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 81%
- On-time
- +2 pts
- vs US avg
- 67 min
- Delay when late
- 9,405
- Flights
- #1260 of 4927
- Corpus placement
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 |
ORD–ROC seasonal on-time pattern
Best: March (85.4%) · weakest: December (75.2%)
Strongest calendar month
March
85.4% on-time · ~128 flights/mo
Busiest calendar month
September
~156 flights/mo avg
Weakest calendar month
December
75.2% on-time · ~126 flights/mo
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.
ORD on-time profileROC - Rochester
Full on-time, delay-cause, and seasonal performance for Rochester, NY.
ROC on-time profileCompare the two airports
See ORD and ROC side by side on delays, cancellations, and reliability.
Compare ORD vs ROCOrigin-hub reliability standing
Mid-pack among ORD departures
From ORD, this corridor sits with 147 other 75–85% on-time routes out of 168 tracked departures, not the hub's reliability leaders (10 at ≥85%) and not the softest ( 11 below 75%). Destination: Rochester · fleet on-time rank #2757 of 4927.
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.
On the multi-year calendar, ORD–ROC peaks in March at 85.4% on-time while September carries the heaviest traffic (~156 flights per month) ; the softest month is December at 75.2%, a 10.2-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does ORD to ROC rank among US routes by traffic? ▼
How often are flights delayed from ORD to ROC? ▼
What is the cancellation rate for ORD to ROC? ▼
How far is the flight from ORD to ROC? ▼
When is the best time to fly from ORD to ROC? ▼
Airports on this route
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.
Using ORD–ROC data
ORD–ROC is mid-pack at 81% on-time; month and carrier mix move more than the corridor headline.
- Compare ORD and ROC airport profiles: delay causes and top routes differ even on the same corridor. ORD airport
- If your dates flex, March (85.4% on-time) beats December (75.2%) on this corridor. Seasonal chart
- 4 other routes post a similar 81% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
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.