Washington (IAD) to Rochester (ROC): On-Time Performance
Data through July 2026
Washington (IAD) to Rochester (ROC) is a thinner route than most in this dataset — 128 departures over the past year, roughly 2 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 73% arrived on time, noticeably below the national average of 78%.
- On-time
- 73%
- arrived <15 min late
- Avg delay
- 22 min
- completed flights
- Cancelled
- 2.2%
- Flights/day
- 0.35
- last 12 months
- Duration
- 1h 24m
- scheduled
- Distance
- 287 mi
Monthly on-time trend
Best time to fly from IAD to ROC
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 16 min |
| Tuesdaybest | 81% | 8 min |
| Wednesday | 71% | 20 min |
| Thursday | 73% | 30 min |
| Friday | 65% | 36 min |
| Saturday | 76% | 16 min |
| Sunday | 67% | 26 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft34%
- Airline operations42%
- National airspace system10%
- Weather14%
Frequently asked questions
- How often are flights from IAD to ROC delayed?
- 27% of IAD–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 22 minutes.
- How long is the flight from IAD to ROC?
- The scheduled IAD–ROC flight time averages 1h 24m over 287 miles. Actual arrival times vary — flights on this route land 15+ minutes late 27% of the time.
- How often are IAD to ROC flights cancelled?
- 2.2% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What day of the week is most reliable for IAD to ROC?
- Tuesday flights have the best record at 81% on-time. Day-of-week differences on this route are meaningful — Friday trails at 65%.
Explore related pages
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Related guides
Based on 277 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.