Frederick Douglass Grtr Rochester International in December 2025

63.5%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 2025, reporting carriers scheduled 808 domestic departures from Frederick Douglass Grtr Rochester International (ROC). 63.5% left less than 15 minutes late and 60.6% reached their destination on time; 3.1% were cancelled.

Nationally that month, 72.0% of flights departed on time and 71.9% arrived on time, so ROC departures were 8.5 points below the national departure figure.

A year earlier, in December 2024, the airport had 965 departures with 74.0% leaving on time: a change of −10.5 points, with flights down 16%.

Flights arriving at ROC that month were on time 61.6% of the time (805 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 39%, air carrier 27% and national aviation system 23%.

On time 60.6%
Arrived 15+ minutes late 36.3%
Cancelled 3.1%
Diverted 0.0%

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

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

Measure	Dec 2025	Dec 2024	ROC, 12 months to Jul 2026	All reported flights, Dec 2025
Departed on time	63.5%	74.0%	75.3%	72.0%
Arrived on time	60.6%	71.6%	74.8%	71.9%
Cancelled	3.1%	0.2%	2.7%	1.5%
Average departure delay (late minutes only)	34.6 min	19.8 min	19.9 min	21.2 min
Scheduled departures a day	27	32	28	19,410
Scheduled departures	808	965	10,281	582,304

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	174	22%	66.1%	21.5 min	2.3%
YX Republic Airline	112	14%	66.1%	25.6 min	3.6%
MQ Envoy Air	93	12%	63.4%	18.1 min	2.2%
DL Delta Air Lines	88	11%	47.7%	36.4 min	5.7%
AA American Airlines	77	10%	68.8%	39.6 min	0.0%
UA United Airlines	62	8%	61.3%	21.1 min	1.6%
OH PSA Airlines	61	8%	49.2%	89.7 min	3.3%
OO SkyWest Airlines	60	7%	58.3%	48.0 min	5.0%
B6 JetBlue Airways	48	6%	62.5%	26.8 min	4.2%
NK Spirit Airlines	23	3%	56.5%	39.5 min	8.7%
G4 Allegiant Air	10	1%	10.0%	66.3 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ROC–ORD	Rochester to Chicago	194	61.3%	23.4 min	3.1%
ROC–BWI	Rochester to Baltimore	95	67.4%	13.2 min	2.1%
ROC–ATL	Rochester to Atlanta	88	47.7%	36.4 min	5.7%
ROC–DCA	Rochester to Washington	79	57.0%	72.2 min	2.5%
ROC–CLT	Rochester to Charlotte	77	68.8%	39.6 min	0.0%
ROC–JFK	Rochester to New York	48	62.5%	26.8 min	4.2%
ROC–DTW	Rochester to Detroit	43	58.1%	55.3 min	4.7%
ROC–MCO	Rochester to Orlando	38	50.0%	50.2 min	7.9%
ROC–EWR	Rochester to Newark	34	64.7%	26.0 min	2.9%
ROC–LAS	Rochester to Las Vegas	31	67.7%	36.7 min	3.2%
ROC–MDW	Rochester to Chicago	29	75.9%	11.0 min	0.0%
ROC–IAD	Rochester to Washington	17	64.7%	13.2 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 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2025	Minutes
Air carrier	27.3%	33.3%	8,190
Late-arriving aircraft	38.8%	41.1%	11,644
National Aviation System	23.1%	19.1%	6,931
Extreme weather	10.7%	6.4%	3,201
Security	0.1%	0.2%	44

30,010 delay minutes on 293 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 2025?

63.5% of 808 scheduled domestic departures left less than 15 minutes late, and 60.6% reached their destination on time. The national figures that month were 72.0% and 71.9%.

How does that compare with a year earlier?

In December 2024, 74.0% of 965 departures left on time and 0.2% were cancelled, against 63.5% and 3.1% in December 2025.

Provenance

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