Rochester (ROC) to Atlanta (ATL): On-Time Performance
Data through July 2026
The calendar drives reliability on ROC–ATL. September 2025 flights landed on schedule 93% of the time, but December 2025 dropped to 51% — a gap of 42 points. Across the full period the route averages 79% on-time against a national 78%. Morning departures also hold up better than evening ones (86% vs 72%), which matters most in the rough months.
- On-time
- 79%
- arrived <15 min late
- Avg delay
- 16 min
- completed flights
- Cancelled
- 2.1%
- Flights/day
- 2.9
- last 12 months
- Duration
- 2h 20m
- scheduled
- Distance
- 749 mi
Monthly on-time trend
Best time to fly from ROC to ATL
Aim for departures around 6 a.m. (87% on-time); avoid 6 p.m. departures (73%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 76% | 18 min |
| Tuesdaybest | 83% | 12 min |
| Wednesday | 81% | 13 min |
| Thursday | 82% | 13 min |
| Friday | 82% | 10 min |
| Saturday | 78% | 17 min |
| Sunday | 72% | 28 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft43%
- Airline operations32%
- National airspace system18%
- Weather7%
Frequently asked questions
- How often are flights from ROC to ATL delayed?
- 21% of ROC–ATL 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 16 minutes.
- What is the best time of day to fly from ROC to ATL?
- Departures around 6 a.m. have the best record (87% on-time), while departures around 6 p.m. have the worst (73%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ROC to ATL?
- The scheduled ROC–ATL flight time averages 2h 20m over 749 miles. Actual arrival times vary — flights on this route land 15+ minutes late 21% of the time.
- How often are ROC to ATL flights cancelled?
- 2.1% 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 ROC to ATL?
- December 2025 was the roughest month in this dataset, with only 51% of arrivals on time. The best was September 2025 at 93%. If your dates are flexible, that 42-point gap is worth planning around.
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Based on 2,167 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.