Cincinnati/Northern Kentucky International in May 2026

83.3%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 May 2026, reporting carriers scheduled 3,064 domestic departures from Cincinnati/Northern Kentucky International (CVG). 83.3% left less than 15 minutes late and 81.6% reached their destination on time; 1.0% were cancelled.

Nationally that month, 77.1% of flights departed on time and 77.6% arrived on time, so CVG departures were 6.2 points above the national departure figure.

A year earlier, in May 2025, the airport had 2,941 departures with 78.4% leaving on time: a change of +4.9 points, with flights up 4%.

Flights arriving at CVG that month were on time 79.1% of the time (3,062 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 35%, air carrier 33% and national aviation system 28%.

On time 81.6%
Arrived 15+ minutes late 17.4%
Cancelled 1.0%
Diverted 0.1%

Every scheduled departure from CVG in May 2026, judged by arrival at the destination.

May 2026 against a year earlier, the airport's year and the nation

Measure	May 2026	May 2025	CVG, 12 months to Jul 2026	All reported flights, May 2026
Departed on time	83.3%	78.4%	79.8%	77.1%
Arrived on time	81.6%	76.8%	77.6%	77.6%
Cancelled	1.0%	0.9%	1.9%	0.9%
Average departure delay (late minutes only)	11.9 min	16.8 min	16.2 min	16.0 min
Scheduled departures a day	102	98	93	20,391
Scheduled departures	3,064	2,941	33,916	611,735

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
DL Delta Air Lines	672	22%	86.6%	-0.9 min	0.7%
YX Republic Airline	464	15%	88.6%	-6.8 min	0.9%
G4 Allegiant Air	319	10%	71.8%	12.8 min	0.0%
AA American Airlines	264	9%	74.6%	9.3 min	3.0%
MQ Envoy Air	257	8%	86.0%	0.9 min	0.4%
WN Southwest Airlines	239	8%	81.2%	4.3 min	0.0%
UA United Airlines	236	8%	80.1%	7.0 min	2.5%
OH PSA Airlines	232	8%	76.7%	8.8 min	0.4%
F9 Frontier Airlines	228	7%	86.0%	-1.8 min	0.0%
OO SkyWest Airlines	122	4%	63.1%	26.4 min	4.1%
AS Alaska Airlines	31	1%	80.6%	-2.9 min	3.2%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
CVG–ORD	Cincinnati to Chicago	457	77.0%	9.9 min	2.2%
CVG–ATL	Cincinnati to Atlanta	252	84.5%	0.6 min	0.4%
CVG–BOS	Cincinnati to Boston	186	85.5%	-6.9 min	0.5%
CVG–DFW	Cincinnati to Dallas/Fort Worth	165	69.7%	11.0 min	5.5%
CVG–CLT	Cincinnati to Charlotte	152	85.5%	-2.7 min	0.0%
CVG–MCO	Cincinnati to Orlando	151	82.8%	1.8 min	0.0%
CVG–PHL	Cincinnati to Philadelphia	136	82.4%	4.6 min	1.5%
CVG–DEN	Cincinnati to Denver	127	86.6%	2.9 min	0.8%
CVG–FLL	Cincinnati to Fort Lauderdale	94	83.0%	3.6 min	0.0%
CVG–EWR	Cincinnati to Newark	93	95.7%	-15.3 min	1.1%
CVG–SLC	Cincinnati to Salt Lake City	87	93.1%	-5.3 min	0.0%
CVG–DCA	Cincinnati to Washington	85	69.4%	18.1 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 2026.

Delay causes

BTS cause category	Share of delay minutes	National, May 2026	Minutes
Air carrier	33.0%	33.0%	11,612
Late-arriving aircraft	35.4%	40.4%	12,450
National Aviation System	28.3%	20.5%	9,962
Extreme weather	2.6%	6.0%	917
Security	0.6%	0.1%	220

35,161 delay minutes on 532 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 CVG on time in May 2026?

83.3% of 3,064 scheduled domestic departures left less than 15 minutes late, and 81.6% reached their destination on time. The national figures that month were 77.1% and 77.6%.

How does that compare with a year earlier?

In May 2025, 78.4% of 2,941 departures left on time and 0.9% were cancelled, against 83.3% and 1.0% in May 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 2026; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for CVG · methodology · corrections.