Chicago (MDW) to Rochester (ROC): On-Time Performance
Data through July 2026
When you fly MDW to ROC matters as much as anything else about the booking: the route swung from 84% on-time in September 2024 to just 48% in July 2026. Across the full period the route averages 68% on-time against a national 78%.
- On-time
- 68%
- arrived <15 min late
- Avg delay
- 20 min
- completed flights
- Cancelled
- 1.7%
- Flights/day
- 1.4
- last 12 months
- Duration
- 1h 35m
- scheduled
- Distance
- 523 mi
Monthly on-time trend
Best time to fly from MDW to ROC
Aim for departures around 4 p.m. (83% on-time); avoid 7 p.m. departures (45%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 63% | 26 min |
| Tuesday | 67% | 24 min |
| Wednesday | 69% | 20 min |
| Thursday | 64% | 21 min |
| Friday | 67% | 19 min |
| Saturdaybest | 74% | 12 min |
| Sunday | 73% | 16 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft54%
- Airline operations31%
- National airspace system10%
- Weather5%
Frequently asked questions
- How often are flights from MDW to ROC delayed?
- 32% of MDW–ROC flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 20 minutes.
- What is the best time of day to fly from MDW to ROC?
- Departures around 4 p.m. have the best record (83% on-time), while departures around 7 p.m. have the worst (45%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from MDW to ROC?
- The scheduled MDW–ROC flight time averages 1h 35m over 523 miles. Actual arrival times vary — flights on this route land 15+ minutes late 32% of the time.
- How often are MDW to ROC flights cancelled?
- 1.7% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from MDW to ROC?
- July 2026 was the roughest month in this dataset, with only 48% of arrivals on time. The best was September 2024 at 84%. If your dates are flexible, that 37-point gap is worth planning around.
Explore related pages
More routes from MDW
Other ways to fly to Rochester (ROC)
Related guides
Based on 700 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.