Rochester (ROC) to Chicago (MDW): On-Time Performance
Data through May 2026
When you fly ROC to MDW matters as much as anything else about the booking: the route swung from 100% on-time in June 2025 to just 61% in March 2026. Across the full period the route averages 82% on-time against a national 78%. Morning departures also hold up better than evening ones (91% vs 67%), which matters most in the rough months.
- On-time
- 82%
- arrived <15 min late
- Avg delay
- 13 min
- completed flights
- Cancelled
- 1.1%
- Flights/day
- 1.2
- last 12 months
- Duration
- 1h 51m
- scheduled
- Distance
- 523 mi
Monthly on-time trend
Best time to fly from ROC to MDW
Aim for departures around 6 a.m. (93% on-time); avoid 7 p.m. departures (55%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 76% | 19 min |
| Tuesday | 83% | 8 min |
| Wednesday | 84% | 12 min |
| Thursday | 84% | 11 min |
| Friday | 84% | 15 min |
| Saturdaybest | 87% | 14 min |
| Sunday | 78% | 11 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft40%
- Airline operations35%
- National airspace system24%
- Weather1%
Frequently asked questions
- How often are flights from ROC to MDW delayed?
- 18% of ROC–MDW flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 13 minutes.
- What is the best time of day to fly from ROC to MDW?
- Departures around 6 a.m. have the best record (93% on-time), while departures around 7 p.m. have the worst (55%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ROC to MDW?
- The scheduled ROC–MDW flight time averages 1h 51m over 523 miles. Actual arrival times vary — flights on this route land 15+ minutes late 18% of the time.
- How often are ROC to MDW flights cancelled?
- 1.1% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from ROC to MDW?
- March 2026 was the roughest month in this dataset, with only 61% of arrivals on time. The best was June 2025 at 100%. If your dates are flexible, that 39-point gap is worth planning around.
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Based on 636 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.