Frederick Douglass Grtr Rochester International in September 2025

86.8%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 2025, reporting carriers scheduled 811 domestic departures from Frederick Douglass Grtr Rochester International (ROC). 86.8% left less than 15 minutes late and 85.3% reached their destination on time; 0.5% were cancelled.

Nationally that month, 83.1% of flights departed on time and 82.8% arrived on time, so ROC departures were 3.7 points above the national departure figure.

A year earlier, in September 2024, the airport had 1,040 departures with 88.3% leaving on time: a change of −1.5 points, with flights down 22%.

Flights arriving at ROC that month were on time 83.5% of the time (808 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 42%, air carrier 30% and national aviation system 28%.

On time 85.3%
Arrived 15+ minutes late 13.8%
Cancelled 0.5%
Diverted 0.4%

Every scheduled departure from ROC in September 2025, judged by arrival at the destination.

September 2025 against a year earlier, the airport's year and the nation

Measure	Sep 2025	Sep 2024	ROC, 12 months to Jul 2026	All reported flights, Sep 2025
Departed on time	86.8%	88.3%	75.3%	83.1%
Arrived on time	85.3%	87.4%	74.8%	82.8%
Cancelled	0.5%	0.2%	2.7%	0.5%
Average departure delay (late minutes only)	8.9 min	9.4 min	19.9 min	12.2 min
Scheduled departures a day	27	35	28	18,748
Scheduled departures	811	1,040	10,281	562,439

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	149	18%	89.9%	-1.3 min	0.0%
YX Republic Airline	122	15%	85.2%	-3.2 min	1.6%
MQ Envoy Air	90	11%	75.6%	3.0 min	1.1%
DL Delta Air Lines	82	10%	92.7%	-7.9 min	0.0%
OH PSA Airlines	82	10%	81.7%	1.5 min	0.0%
OO SkyWest Airlines	78	10%	92.3%	-2.8 min	0.0%
B6 JetBlue Airways	60	7%	91.7%	-5.2 min	0.0%
AA American Airlines	59	7%	86.4%	-5.2 min	1.7%
UA United Airlines	59	7%	71.2%	11.7 min	0.0%
NK Spirit Airlines	30	4%	76.7%	12.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ROC–ORD	Rochester to Chicago	206	80.1%	1.3 min	0.5%
ROC–BWI	Rochester to Baltimore	90	91.1%	0.7 min	0.0%
ROC–CLT	Rochester to Charlotte	89	88.8%	-7.6 min	1.1%
ROC–DCA	Rochester to Washington	86	76.7%	6.9 min	0.0%
ROC–ATL	Rochester to Atlanta	82	92.7%	-7.9 min	0.0%
ROC–JFK	Rochester to New York	60	91.7%	-5.2 min	0.0%
ROC–EWR	Rochester to Newark	52	80.8%	0.3 min	3.8%
ROC–DTW	Rochester to Detroit	30	90.0%	-1.1 min	0.0%
ROC–MDW	Rochester to Chicago	30	90.0%	-8.9 min	0.0%
ROC–MCO	Rochester to Orlando	29	79.3%	13.7 min	0.0%
ROC–LGA	Rochester to New York	26	92.3%	0.9 min	0.0%
ROC–LAS	Rochester to Las Vegas	17	82.4%	-0.4 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 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Sep 2025	Minutes
Air carrier	30.0%	34.3%	2,095
Late-arriving aircraft	41.5%	37.4%	2,902
National Aviation System	27.5%	22.6%	1,922
Extreme weather	1.0%	5.6%	67
Security	0.0%	0.1%	0

6,986 delay minutes on 112 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 2025?

86.8% of 811 scheduled domestic departures left less than 15 minutes late, and 85.3% reached their destination on time. The national figures that month were 83.1% and 82.8%.

How does that compare with a year earlier?

In September 2024, 88.3% of 1,040 departures left on time and 0.2% were cancelled, against 86.8% and 0.5% in September 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for September 2025; 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.