ROC to IAD flight delays & on-time performance
Nonstop flights from Frederick Douglass Greater Rochester International Airport to Washington Dulles International Airport · 287 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ROC or IAD right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Rochester (ROC) to Washington (IAD) arrived on time 83% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.9% were cancelled, and 7% arrived an hour or more late.
- Friday was the most reliable day to fly (96% on time) and Thursday the least (72%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (62%).
Which airline is most on time from ROC to IAD?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| United Airlines | 88% | 0.0% | 3 min | 0.0% | 8 |
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 83% | 2.0% | 14 min | 6.9% | 147 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
Not enough departures across different hours to compare.
Best day of the week
On-time arrival rate by day of departure.
- Monday89%10.0% cancelled
- Tuesday88%0.0% cancelled
- Wednesday74%0.0% cancelled
- Thursday72%0.0% cancelled
- Friday96%0.0% cancelled
- Saturday81%0.0% cancelled
- Sunday81%4.5% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)62%
- Air traffic control & airport congestion25%
- Late-arriving aircraft13%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather67%
- Air traffic control & airport congestion33%
- Airline (crew, maintenance, cleaning, fueling)0%
- Security0%
ROC to IAD: common questions
- How often are ROC to IAD flights on time?
- 83% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Rochester to Washington cancelled?
- 1.9% of scheduled flights were cancelled (3 of 155).
- How long are typical delays?
- Across all flights the average arrival delay was 14 min (early arrivals count as zero). Flights that were late arrived 74 min behind schedule on average, and 6.6% of flights were an hour or more late.
- How long is taxi time at ROC?
- Flights on this route spent 24 min taxiing from the gate to takeoff on average.
Related routes
Return trip: IAD to ROC — 77% on time
More flights from Rochester
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: ROC → IAD, nonstop flights by US airlines that report to the DOT. How we calculate this.