Frederick Douglass Grtr Rochester International in August 2024

69.7%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In August 2024, reporting carriers scheduled 1,062 domestic departures from Frederick Douglass Grtr Rochester International (ROC). 69.7% left less than 15 minutes late and 71.0% reached their destination on time; 4.6% were cancelled.

Nationally that month, 75.4% of flights departed on time and 74.7% arrived on time, so ROC departures were 5.7 points below the national departure figure.

A year earlier, in August 2023, the airport had 1,104 departures with 78.4% leaving on time: a change of −8.7 points, with flights down 4%.

Flights arriving at ROC that month were on time 66.1% of the time (1,061 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 39%, air carrier 31% and national aviation system 28%.

On time 71.0%
Arrived 15+ minutes late 24.1%
Cancelled 4.6%
Diverted 0.3%

Every scheduled departure from ROC in August 2024, judged by arrival at the destination.

August 2024 against a year earlier, the airport's year and the nation

Measure	Aug 2024	Aug 2023	ROC, 12 months to Jul 2026	All reported flights, Aug 2024
Departed on time	69.7%	78.4%	75.3%	75.4%
Arrived on time	71.0%	80.3%	74.8%	74.7%
Cancelled	4.6%	1.4%	2.7%	2.1%
Average departure delay (late minutes only)	22.7 min	18.6 min	19.9 min	18.4 min
Scheduled departures a day	35	37	28	20,634
Scheduled departures	1,062	1,104	10,281	619,025

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
9E Endeavor Air	233	22%	67.4%	18.8 min	10.7%
WN Southwest Airlines	160	15%	72.5%	21.6 min	1.9%
MQ Envoy Air	126	12%	76.2%	7.6 min	1.6%
UA United Airlines	103	10%	69.9%	7.6 min	1.9%
AA American Airlines	85	8%	56.5%	31.7 min	3.5%
DL Delta Air Lines	85	8%	88.2%	6.1 min	1.2%
NK Spirit Airlines	63	6%	69.8%	11.4 min	3.2%
B6 JetBlue Airways	62	6%	54.8%	34.3 min	11.3%
OO SkyWest Airlines	62	6%	83.9%	4.6 min	1.6%
YX Republic Airline	58	5%	81.0%	2.7 min	5.2%
OH PSA Airlines	25	2%	52.0%	45.1 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ROC–ORD	Rochester to Chicago	160	66.3%	11.7 min	1.9%
ROC–JFK	Rochester to New York	155	62.6%	26.7 min	12.9%
ROC–DTW	Rochester to Detroit	116	74.1%	18.7 min	2.6%
ROC–BWI	Rochester to Baltimore	96	69.8%	26.2 min	1.0%
ROC–CLT	Rochester to Charlotte	90	57.8%	30.3 min	3.3%
ROC–DCA	Rochester to Washington	88	70.5%	23.0 min	1.1%
ROC–ATL	Rochester to Atlanta	85	88.2%	6.1 min	1.2%
ROC–LGA	Rochester to New York	83	69.9%	4.0 min	12.0%
ROC–EWR	Rochester to Newark	61	93.4%	-13.8 min	4.9%
ROC–MCO	Rochester to Orlando	46	65.2%	13.0 min	2.2%
ROC–MDW	Rochester to Chicago	41	80.5%	17.1 min	4.9%
ROC–FLL	Rochester to Fort Lauderdale	18	83.3%	4.3 min	0.0%

By scheduled departure hour

100

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), August 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2024	Minutes
Air carrier	31.4%	33.8%	6,854
Late-arriving aircraft	39.2%	39.8%	8,536
National Aviation System	27.6%	20.4%	6,027
Extreme weather	1.6%	5.9%	354
Security	0.1%	0.1%	30

21,801 delay minutes on 256 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left ROC on time in August 2024?

69.7% of 1,062 scheduled domestic departures left less than 15 minutes late, and 71.0% reached their destination on time. The national figures that month were 75.4% and 74.7%.

How does that compare with a year earlier?

In August 2023, 78.4% of 1,104 departures left on time and 1.4% were cancelled, against 69.7% and 4.6% in August 2024.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for August 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for ROC · methodology · corrections.