Route Reliability
Washington → Rochester
IAD–ROC · 287 miles · Washington Dulles International Airport to Frederick Douglass Greater Rochester International Airport
- 78%
- Arrive within 15 minutes
- 13 min
- Average arrival delay
- 2.8%
- Cancelled
- 1,255
- Flights in the data
Data through May 2026.
United Airlines is the only airline in this data on this route, arriving on time 78% of the time across 1,255 flights. No comparison to make.
What the data says
Morning-you made the right choice.
IAD–ROC flights departing between 6–9 AM arrived on time 85% of the time, versus 73% between 9 PM–12 AM.
Sunday scaries are real for this one.
IAD–ROC flights arrived on time 86% of the time on Tuesdays and just 70% on Sundays. That gap is worth planning around.
Trending in the right direction.
IAD–ROC flights arrived on time 88% of the time over the last three months in the data, compared with 77% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon77%(179 flights)
- Tue86%(173 flights)
- Wed80%(178 flights)
- Thu81%(187 flights)
- Fri74%(187 flights)
- Sat82%(140 flights)
- Sun70%(172 flights)
- 6–9 AM85%(288 flights)
- 12–3 PM81%(332 flights)
- 3–6 PM74%(321 flights)
- 9 PM–12 AM73%(275 flights)
Jun 61% → May 90% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 61% | 101 |
| July 2025 | 68% | 104 |
| August 2025 | 81% | 117 |
| September 2025 | 82% | 105 |
| October 2025 | 76% | 93 |
| November 2025 | 74% | 105 |
| December 2025 | 69% | 98 |
| January 2026 | 69% | 80 |
| February 2026 | 92% | 73 |
| March 2026 | 82% | 112 |
| April 2026 | 93% | 112 |
| May 2026 | 90% | 116 |
Same trip, other airports
Keep nerding
Based on 1,255 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.