Rochester (ROC) to Washington (IAD): On-Time Performance
Data through May 2026
Rochester (ROC) to Washington (IAD) is a thinner route than most in this dataset — 189 departures over the past year, roughly 4 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 83% arrived on time, comfortably above the national average of 78%.
- On-time
- 83%
- arrived <15 min late
- Avg delay
- 14 min
- completed flights
- Cancelled
- 1.8%
- Flights/day
- 0.52
- last 12 months
- Duration
- 1h 25m
- scheduled
- Distance
- 287 mi
Monthly on-time trend
Best time to fly from ROC to IAD
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Mondaybest | 91% | 12 min |
| Tuesday | 88% | 6 min |
| Wednesday | 76% | 21 min |
| Thursday | 73% | 16 min |
| Friday | 90% | 13 min |
| Saturday | 86% | 16 min |
| Sunday | 83% | 9 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 operations53%
- National airspace system22%
- Weather1%
Frequently asked questions
- How often are flights from ROC to IAD delayed?
- 17% of ROC–IAD 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 14 minutes.
- How long is the flight from ROC to IAD?
- The scheduled ROC–IAD flight time averages 1h 25m over 287 miles. Actual arrival times vary — flights on this route land 15+ minutes late 17% of the time.
- How often are ROC to IAD flights cancelled?
- 1.8% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, slightly above the national rate of 1.6%.
- What day of the week is most reliable for ROC to IAD?
- Monday flights have the best record at 91% on-time. Day-of-week differences on this route are meaningful — Thursday trails at 73%.
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Based on 330 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.