Frederick Douglass Grtr Rochester International in September 2024

88.3%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 September 2024, reporting carriers scheduled 1,040 domestic departures from Frederick Douglass Grtr Rochester International (ROC). 88.3% left less than 15 minutes late and 87.4% reached their destination on time; 0.2% were cancelled.

Nationally that month, 84.4% of flights departed on time and 83.9% arrived on time, so ROC departures were 3.9 points above the national departure figure.

A year earlier, in September 2023, the airport had 1,089 departures with 79.2% leaving on time: a change of +9.1 points, with flights down 4%.

Flights arriving at ROC that month were on time 84.3% of the time (1,041 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 43%, late-arriving aircraft 34% and national aviation system 17%.

On time 87.4%
Arrived 15+ minutes late 12.3%
Cancelled 0.2%
Diverted 0.1%

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

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

Measure	Sep 2024	Sep 2023	ROC, 12 months to Jul 2026	All reported flights, Sep 2024
Departed on time	88.3%	79.2%	75.3%	84.4%
Arrived on time	87.4%	79.4%	74.8%	83.9%
Cancelled	0.2%	3.2%	2.7%	0.6%
Average departure delay (late minutes only)	9.4 min	19.5 min	19.9 min	10.6 min
Scheduled departures a day	35	36	28	19,421
Scheduled departures	1,040	1,089	10,281	582,622

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
9E Endeavor Air	192	18%	91.1%	-10.9 min	0.0%
WN Southwest Airlines	153	15%	89.5%	-0.1 min	0.0%
MQ Envoy Air	99	10%	87.9%	-1.4 min	0.0%
AA American Airlines	89	9%	76.4%	20.1 min	1.1%
UA United Airlines	88	8%	90.9%	2.3 min	0.0%
B6 JetBlue Airways	87	8%	75.9%	20.5 min	0.0%
DL Delta Air Lines	81	8%	91.4%	-7.0 min	0.0%
YX Republic Airline	81	8%	90.1%	-10.7 min	0.0%
OH PSA Airlines	76	7%	86.8%	-7.2 min	1.3%
NK Spirit Airlines	50	5%	90.0%	-3.6 min	0.0%
OO SkyWest Airlines	44	4%	86.4%	8.8 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ROC–JFK	Rochester to New York	177	80.8%	6.5 min	0.0%
ROC–ORD	Rochester to Chicago	149	87.9%	0.6 min	0.0%
ROC–DTW	Rochester to Detroit	111	90.1%	-2.6 min	0.0%
ROC–BWI	Rochester to Baltimore	94	93.6%	-2.3 min	0.0%
ROC–DCA	Rochester to Washington	90	88.9%	-8.1 min	1.1%
ROC–CLT	Rochester to Charlotte	89	76.4%	20.1 min	1.1%
ROC–LGA	Rochester to New York	82	91.5%	-11.7 min	0.0%
ROC–ATL	Rochester to Atlanta	81	91.4%	-7.0 min	0.0%
ROC–EWR	Rochester to Newark	58	96.6%	-9.0 min	0.0%
ROC–MDW	Rochester to Chicago	38	84.2%	2.2 min	0.0%
ROC–MCO	Rochester to Orlando	32	84.4%	1.0 min	0.0%
ROC–FLL	Rochester to Fort Lauderdale	30	90.0%	-2.4 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), September 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Sep 2024	Minutes
Air carrier	43.4%	38.6%	3,898
Late-arriving aircraft	33.9%	38.4%	3,040
National Aviation System	16.7%	18.2%	1,501
Extreme weather	5.8%	4.8%	520
Security	0.2%	0.1%	16

8,975 delay minutes on 128 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 September 2024?

88.3% of 1,040 scheduled domestic departures left less than 15 minutes late, and 87.4% reached their destination on time. The national figures that month were 84.4% and 83.9%.

How does that compare with a year earlier?

In September 2023, 79.2% of 1,089 departures left on time and 3.2% were cancelled, against 88.3% and 0.2% in September 2024.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for September 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.