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WanderNerd

Airport Reliability

ROC · Rochester

Frederick Douglass Greater Rochester International Airport

79%
Departures within 15 minutes
16 min
Average departure delay
76%
Arrivals within 15 minutes
2.9%
Departures cancelled

Based on 16,345 departures and 16,349 arrivals. Data through May 2026.

What the data says

Morning flights do better here.

Departures from ROC departing between 3–6 AM arrived on time 90% of the time, versus 64% between 3–6 PM.

Wednesday comes out ahead.

A small edge: 80% on time on Wednesdays against 73% on Sundays.

Trending in the right direction.

Departures from ROC arrived on time 81% of the time over the last three months in the data, compared with 69% in the three months before that.

When ROC gets messy

On-time by departure window
  • 3–6 AM90%(880 flights)
  • 6–9 AM87%(4165 flights)
  • 9 AM–12 PM83%(2591 flights)
  • 12–3 PM76%(3334 flights)
  • 3–6 PM64%(2848 flights)
  • 6–9 PM69%(2016 flights)
  • 9 PM–12 AM(2 flights)
On-time by weekday
  • Mon78%(2300 flights)
  • Tue79%(2216 flights)
  • Wed80%(2237 flights)
  • Thu77%(2343 flights)
  • Fri78%(2348 flights)
  • Sat79%(2050 flights)
  • Sun73%(2342 flights)
On-time trend by month
84%
May

Jun 76% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%1343
July 202576%1350
August 202583%1411
September 202586%1323
October 202582%1378
November 202576%1271
December 202563%1245
January 202671%1131
February 202674%1142
March 202675%1352
April 202684%1437
May 202684%1453

Airlines departing ROC

Based on 16,345 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.