ATL to ROC flight delays & on-time performance
Nonstop flights from Hartsfield Jackson Atlanta International Airport to Frederick Douglass Greater Rochester International Airport · 749 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ATL or ROC right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Atlanta (ATL) to Rochester (ROC) arrived on time 77% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 2.3% were cancelled, and 7% arrived an hour or more late.
- Delta Air Lines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 9am did best (84% on time); around 9pm did worst (74%).
- Wednesday was the most reliable day to fly (85% on time) and Friday the least (72%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (52%).
Which airline is most on time from ATL to ROC?
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 |
|---|---|---|---|---|---|
| Delta Air Lines | 77% | 2.3% | 13 min | 6.7% | 1,041 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 9am84%311 flights
- 11am78%50 flights
- 3pm76%303 flights
- 4pm50%12 flights
- 9pm74%349 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday73%3.2% cancelled
- Tuesday80%1.3% cancelled
- Wednesday85%0.0% cancelled
- Thursday77%0.7% cancelled
- Friday72%3.2% cancelled
- Saturday82%3.3% cancelled
- Sunday73%4.6% 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)52%
- Late-arriving aircraft29%
- Air traffic control & airport congestion16%
- Extreme weather2%
- Security1%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)75%
- Extreme weather25%
- Air traffic control & airport congestion0%
- Security0%
ATL to ROC: common questions
- How often are ATL to ROC flights on time?
- 77% 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 Atlanta to Rochester cancelled?
- 2.3% of scheduled flights were cancelled (24 of 1,041).
- How long are typical delays?
- Across all flights the average arrival delay was 13 min (early arrivals count as zero). Flights that were late arrived 54 min behind schedule on average, and 6.7% of flights were an hour or more late.
- How long is taxi time at ATL?
- Flights on this route spent 16 min taxiing from the gate to takeoff on average.
Related routes
Return trip: ROC to ATL — 80% on time
More flights from Atlanta
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: ATL → ROC, nonstop flights by US airlines that report to the DOT. How we calculate this.