Frederick Douglass Grtr Rochester International in December 2024

74.0%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 December 2024, reporting carriers scheduled 965 domestic departures from Frederick Douglass Grtr Rochester International (ROC). 74.0% left less than 15 minutes late and 71.6% reached their destination on time; 0.2% were cancelled.

Nationally that month, 77.8% of flights departed on time and 78.1% arrived on time, so ROC departures were 3.8 points below the national departure figure.

A year earlier, in December 2023, the airport had 996 departures with 84.5% leaving on time: a change of −10.5 points, with flights down 3%.

Flights arriving at ROC that month were on time 74.1% of the time (965 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 40%, late-arriving aircraft 33% and national aviation system 25%.

On time 71.6%
Arrived 15+ minutes late 28.1%
Cancelled 0.2%
Diverted 0.1%

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

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

Measure	Dec 2024	Dec 2023	ROC, 12 months to Jul 2026	All reported flights, Dec 2024
Departed on time	74.0%	84.5%	75.3%	77.8%
Arrived on time	71.6%	87.9%	74.8%	78.1%
Cancelled	0.2%	0.9%	2.7%	0.7%
Average departure delay (late minutes only)	19.8 min	9.3 min	19.9 min	16.6 min
Scheduled departures a day	32	33	28	19,686
Scheduled departures	965	996	10,281	590,581

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
9E Endeavor Air	232	24%	73.3%	10.6 min	0.0%
WN Southwest Airlines	123	13%	67.5%	15.8 min	0.0%
MQ Envoy Air	93	10%	79.6%	3.8 min	1.1%
DL Delta Air Lines	88	9%	69.3%	13.2 min	0.0%
AA American Airlines	85	9%	77.6%	14.9 min	0.0%
UA United Airlines	77	8%	72.7%	12.1 min	0.0%
YX Republic Airline	77	8%	81.8%	6.5 min	0.0%
B6 JetBlue Airways	61	6%	63.9%	24.6 min	0.0%
OH PSA Airlines	55	6%	63.6%	20.2 min	0.0%
NK Spirit Airlines	50	5%	52.0%	16.3 min	2.0%
OO SkyWest Airlines	18	2%	77.8%	4.1 min	0.0%
G4 Allegiant Air	6	1%	66.7%	25.3 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ROC–ORD	Rochester to Chicago	151	76.8%	5.6 min	0.7%
ROC–JFK	Rochester to New York	140	67.9%	18.7 min	0.0%
ROC–DTW	Rochester to Detroit	107	73.8%	4.6 min	0.0%
ROC–BWI	Rochester to Baltimore	93	73.1%	12.8 min	0.0%
ROC–CLT	Rochester to Charlotte	91	78.0%	13.4 min	0.0%
ROC–ATL	Rochester to Atlanta	88	69.3%	13.2 min	0.0%
ROC–DCA	Rochester to Washington	85	70.6%	16.5 min	0.0%
ROC–LGA	Rochester to New York	75	78.7%	15.0 min	0.0%
ROC–MCO	Rochester to Orlando	40	47.5%	24.5 min	2.5%
ROC–EWR	Rochester to Newark	32	81.3%	6.5 min	0.0%
ROC–FLL	Rochester to Fort Lauderdale	23	52.2%	12.7 min	0.0%
ROC–LAS	Rochester to Las Vegas	15	66.7%	14.4 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), December 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2024	Minutes
Air carrier	39.8%	34.3%	7,376
Late-arriving aircraft	32.5%	40.2%	6,015
National Aviation System	24.8%	17.8%	4,587
Extreme weather	2.7%	7.5%	503
Security	0.2%	0.2%	33

18,514 delay minutes on 271 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 December 2024?

74.0% of 965 scheduled domestic departures left less than 15 minutes late, and 71.6% reached their destination on time. The national figures that month were 77.8% and 78.1%.

How does that compare with a year earlier?

In December 2023, 84.5% of 996 departures left on time and 0.9% were cancelled, against 74.0% and 0.2% in December 2024.

Provenance

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