Frederick Douglass Grtr Rochester International in May 2024

79.4%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 May 2024, reporting carriers scheduled 1,026 domestic departures from Frederick Douglass Grtr Rochester International (ROC). 79.4% left less than 15 minutes late and 80.5% reached their destination on time; 0.9% were cancelled.

Nationally that month, 73.4% of flights departed on time and 72.3% arrived on time, so ROC departures were 6.0 points above the national departure figure.

Flights arriving at ROC that month were on time 73.0% of the time (1,026 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 48%, air carrier 25% and national aviation system 21%.

On time 80.5%
Arrived 15+ minutes late 18.3%
Cancelled 0.9%
Diverted 0.3%

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

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

Measure	May 2024	Year earlier	ROC, 12 months to Jul 2026	All reported flights, May 2024
Departed on time	79.4%	—	75.3%	73.4%
Arrived on time	80.5%	—	74.8%	72.3%
Cancelled	0.9%	—	2.7%	1.4%
Average departure delay (late minutes only)	16.2 min	—	19.9 min	20.8 min
Scheduled departures a day	34	—	28	20,325
Scheduled departures	1,026	—	10,281	609,743

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
9E Endeavor Air	260	25%	90.4%	-3.8 min	1.2%
WN Southwest Airlines	177	17%	75.7%	9.2 min	0.0%
UA United Airlines	103	10%	82.5%	5.5 min	1.0%
DL Delta Air Lines	88	9%	83.0%	3.1 min	1.1%
OH PSA Airlines	86	8%	82.6%	10.5 min	1.2%
AA American Airlines	85	8%	67.1%	31.5 min	0.0%
B6 JetBlue Airways	62	6%	66.1%	18.6 min	3.2%
MQ Envoy Air	58	6%	79.3%	-0.8 min	0.0%
OO SkyWest Airlines	42	4%	73.8%	11.1 min	2.4%
YX Republic Airline	34	3%	82.4%	3.1 min	0.0%
NK Spirit Airlines	31	3%	80.6%	0.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ROC–JFK	Rochester to New York	155	79.4%	4.7 min	2.6%
ROC–ORD	Rochester to Chicago	142	77.5%	6.0 min	0.7%
ROC–DTW	Rochester to Detroit	119	92.4%	-3.3 min	0.0%
ROC–CLT	Rochester to Charlotte	93	68.8%	30.1 min	0.0%
ROC–BWI	Rochester to Baltimore	89	82.0%	1.0 min	0.0%
ROC–DCA	Rochester to Washington	89	82.0%	10.0 min	1.1%
ROC–ATL	Rochester to Atlanta	88	83.0%	3.1 min	1.1%
ROC–LGA	Rochester to New York	84	88.1%	-0.2 min	1.2%
ROC–MCO	Rochester to Orlando	66	78.8%	8.1 min	0.0%
ROC–MDW	Rochester to Chicago	45	66.7%	13.3 min	0.0%
ROC–EWR	Rochester to Newark	39	87.2%	-2.1 min	2.6%
ROC–IAD	Rochester to Washington	9	66.7%	4.2 min	0.0%

By scheduled departure hour

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

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

Delay causes

BTS cause category	Share of delay minutes	National, May 2024	Minutes
Air carrier	25.1%	29.8%	3,799
Late-arriving aircraft	47.5%	43.0%	7,186
National Aviation System	21.0%	20.1%	3,180
Extreme weather	6.3%	7.0%	959
Security	0.1%	0.1%	19

15,143 delay minutes on 188 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 May 2024?

79.4% of 1,026 scheduled domestic departures left less than 15 minutes late, and 80.5% reached their destination on time. The national figures that month were 73.4% and 72.3%.

How does that compare with a year earlier?

May 2023 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

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