Chicago (ORD) to Rochester (RST): On-Time Performance
Data through July 2026
Chicago (ORD) to Rochester (RST) has an unusually high scrub rate — 3.4% of scheduled departures never left the gate, a cancellation rate several times the national figure. When flights do go, 66% land on time, below the national average of 78%. Envoy Air has been the safer pick, arriving on time 73% of the time.
- On-time
- 66%
- arrived <15 min late
- Avg delay
- 30 min
- completed flights
- Cancelled
- 3.4%
- Flights/day
- 2.9
- last 12 months
- Duration
- 1h 24m
- scheduled
- Distance
- 268 mi
Best airline from ORD to RST
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Airmost reliable | 73% | 15 min | 3.7% | 764 |
| SkyWest Airlines | 60% | 42 min | 3.3% | 888 |
Monthly on-time trend
Best time to fly from ORD to RST
Aim for departures around 11 a.m. (86% on-time); avoid 9 p.m. departures (46%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 66% | 27 min |
| Tuesdaybest | 72% | 28 min |
| Wednesday | 70% | 35 min |
| Thursday | 63% | 29 min |
| Friday | 63% | 32 min |
| Saturday | 70% | 23 min |
| Sunday | 62% | 33 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft24%
- Airline operations39%
- National airspace system12%
- Weather24%
Frequently asked questions
- How often are flights from ORD to RST delayed?
- 34% of ORD–RST 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 30 minutes.
- Which airline is most reliable from ORD to RST?
- Envoy Air has the best on-time record on this route at 73%, based on 764 flights. 2 airlines flew ORD–RST frequently enough to compare in this period.
- What is the best time of day to fly from ORD to RST?
- Departures around 11 a.m. have the best record (86% on-time), while departures around 9 p.m. have the worst (46%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ORD to RST?
- The scheduled ORD–RST flight time averages 1h 24m over 268 miles. Actual arrival times vary — flights on this route land 15+ minutes late 34% of the time.
- How often are ORD to RST flights cancelled?
- 3.4% of scheduled flights on this route were cancelled between 2024-07 and 2026-07 — several times the typical US rate, so consider earlier departures or backup options.
- What is the worst month to fly from ORD to RST?
- July 2024 was the roughest month in this dataset, with only 39% of arrivals on time. The best was May 2026 at 87%. If your dates are flexible, that 48-point gap is worth planning around.
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Based on 1,666 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.