FlightRecord

Frederick Douglass Greater Rochester International Airport (ROC): Delays & On-Time Performance

Data through May 2026

Frederick Douglass Greater Rochester International Airport (ROC) is a tale of two seasons: departures ran 88% on-time in September 2024 but sank to 66% in December 2025. Across the year it averages 79% against a national 78%, over roughly 28 departures a day to 22 destinations.

Departures on-time
79%
left <15 min late
Avg dep delay
18 min
Arrivals on-time
76%
Cancelled
2.1%
Destinations
22
nonstop
Airlines
12

Plan your departure from ROC

The choices most likely to improve your odds, based on this airport’s historical record.

Best departure time
Around 8 a.m.
95% on-time
Best day to fly
Tuesday
80% on-time
Most reliable airline here
Republic Airways
86% on-time from ROC
Cancellation risk
2.1%
above the US average
Check routes from ROC ↓Compare nearby airports ↓

Monthly on-time trend

Monthly departure on-time percentage at ROC50%75%100%June 2024: 80% on-time (1,015 flights)80Jun 2024July 2024: 73% on-time (1,128 flights)73August 2024: 73% on-time (1,062 flights)73September 2024: 88% on-time (1,040 flights)88Sep 2024October 2024: 88% on-time (1,054 flights)88November 2024: 87% on-time (922 flights)87December 2024: 74% on-time (965 flights)74Dec 2024January 2025: 79% on-time (858 flights)79February 2025: 75% on-time (853 flights)75March 2025: 82% on-time (834 flights)82Mar 2025April 2025: 83% on-time (800 flights)83May 2025: 78% on-time (821 flights)78June 2025: 77% on-time (837 flights)77Jun 2025July 2025: 73% on-time (919 flights)73August 2025: 80% on-time (897 flights)80September 2025: 87% on-time (811 flights)87Sep 2025October 2025: 82% on-time (802 flights)82November 2025: 79% on-time (844 flights)79December 2025: 66% on-time (808 flights)66Dec 2025January 2026: 72% on-time (754 flights)72February 2026: 73% on-time (792 flights)73March 2026: 76% on-time (845 flights)76Mar 2026April 2026: 82% on-time (907 flights)82May 2026: 82% on-time (930 flights)82

Best time of day to depart from ROC

On-time percentage by scheduled departure hour at ROC5 a.m.: 89% on-time (1,385 flights)56 a.m.: 90% on-time (5,036 flights)67 a.m.: 92% on-time (941 flights)78 a.m.: 95% on-time (232 flights)89 a.m.: 82% on-time (215 flights)910 a.m.: 87% on-time (615 flights)1011 a.m.: 79% on-time (1,962 flights)1112 p.m.: 75% on-time (2,500 flights)121 p.m.: 78% on-time (1,348 flights)132 p.m.: 73% on-time (766 flights)143 p.m.: 66% on-time (602 flights)154 p.m.: 64% on-time (786 flights)165 p.m.: 68% on-time (2,558 flights)176 p.m.: 68% on-time (1,816 flights)187 p.m.: 68% on-time (545 flights)198 p.m.: 68% on-time (161 flights)20scheduled departure hour

By day of week

DayOn-timeAvg delay
Monday79%21 min
Tuesdaybest80%17 min
Wednesday80%15 min
Thursday78%18 min
Friday77%19 min
Saturday78%17 min
Sunday75%21 min

Next: compare the busiest routes from ROC ↓

Busiest routes from ROC

RouteFlights/12moOn-timeAvg delay
ROC → ORD (Chicago)2,31276%19 min
ROC → BWI (Baltimore)1,10483%12 min
ROC → DCA (Washington)1,05172%29 min
ROC → ATL (Atlanta)1,04380%15 min
ROC → CLT (Charlotte)1,00880%19 min
ROC → JFK (New York)60079%19 min
ROC → EWR (Newark)56786%13 min
ROC → MCO (Orlando)49273%21 min
ROC → DTW (Detroit)47480%19 min
ROC → MDW (Chicago)43182%13 min
ROC → LAS (Las Vegas)21070%21 min
ROC → BOS (Boston)20985%12 min
ROC → IAD (Washington)18983%14 min
ROC → LGA (New York)16782%17 min

Compare airlines departing ROC ↓

Where flights into ROC come from

RouteFlights/12moOn-timeAvg delay
ORD (Chicago) → ROC2,27576%16 min
BWI (Baltimore) → ROC1,10574%14 min
DCA (Washington) → ROC1,05071%24 min
ATL (Atlanta) → ROC1,04376%16 min
CLT (Charlotte) → ROC1,00874%21 min
EWR (Newark) → ROC63380%15 min
JFK (New York) → ROC60070%23 min
MCO (Orlando) → ROC49179%12 min

Most reliable routes

  1. ROC → EWR86%
  2. ROC → BOS85%
  3. ROC → IAD83%
  4. ROC → BWI83%
  5. ROC → MDW82%

Most delay-prone routes

  1. ROC → LAS70%
  2. ROC → DCA72%
  3. ROC → MCO73%
  4. ROC → ORD76%
  5. ROC → JFK79%

What causes delays at ROC

Share of total delay minutes by cause, as reported by carriers to the US DOT, weighted across routes departing ROC.

  • Late-arriving aircraft38%
  • Airline operations31%
  • National airspace system25%
  • Weather5%

Alternative airports near Rochester

Other airports within 120 miles, compared on departure reliability.

AirportDistanceOn-time departuresAvg delay
BUF — Buffalo Niagara International Airport55 mi80%17 min
ELM — Elmira Corning Regional Airport77 mi80%18 min
SYR — Syracuse Hancock International Airport79 mi81%17 min

Compare the airport-level record first, then check the exact route you plan to book.

Airline performance at ROC

AirlineOn-time departuresAvg delayFlights
Republic Airways86%13 min2,726
Endeavor Air84%14 min1,593
United Airlines83%16 min1,580
Envoy Air83%13 min2,086
American Airlines81%20 min1,742
JetBlue Airways77%21 min1,409
PSA Airlines77%26 min1,987
SkyWest Airlines76%26 min1,176
Delta Air Lines75%17 min2,140
Southwest Airlines74%17 min4,001
Spirit Airlines74%19 min858
Allegiant Air54%27 min200

Frequently asked questions

How often are flights delayed at ROC?
21% of departures from Frederick Douglass Greater Rochester International Airport left 15+ minutes late between 2024-06 and 2026-05, with an average departure delay of 18 minutes. The national on-time average over the same period was 78%.
What is the best time of day to depart from ROC?
Flights scheduled around 8 a.m. depart on time 95% of the time at ROC, versus 64% around 4 p.m.. Booking before noon is the usual rule of thumb here.
What is the worst month for delays at ROC?
In this dataset, December 2025 was the weakest month at ROC, with 66% of departures on time.
How often are flights cancelled at ROC?
2.1% of scheduled departures from ROC were cancelled in this period, compared with a national rate of 1.6%.

Popular route pages from this airport

Related guides

Based on 21,498 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.