James M Cox/Dayton International in June 2024

81.6%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 June 2024, reporting carriers scheduled 629 domestic departures from James M Cox/Dayton International (DAY). 81.6% left less than 15 minutes late and 83.8% reached their destination on time; 1.4% were cancelled.

Nationally that month, 73.7% of flights departed on time and 73.9% arrived on time, so DAY departures were 7.9 points above the national departure figure.

Flights arriving at DAY that month were on time 76.9% of the time (629 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 50%, air carrier 29% and national aviation system 19%.

On time 83.8%
Arrived 15+ minutes late 14.3%
Cancelled 1.4%
Diverted 0.5%

Every scheduled departure from DAY in June 2024, judged by arrival at the destination.

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

Measure	Jun 2024	Year earlier	DAY, 12 months to Jul 2026	All reported flights, Jun 2024
Departed on time	81.6%	—	78.8%	73.7%
Arrived on time	83.8%	—	77.4%	73.9%
Cancelled	1.4%	—	2.7%	1.3%
Average departure delay (late minutes only)	17.4 min	—	20.9 min	19.7 min
Scheduled departures a day	21	—	22	20,371
Scheduled departures	629	—	7,918	611,132

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OH PSA Airlines	288	46%	84.4%	2.7 min	1.7%
OO SkyWest Airlines	145	23%	80.0%	16.1 min	0.7%
DL Delta Air Lines	110	17%	90.9%	-9.2 min	0.9%
9E Endeavor Air	29	5%	86.2%	-10.2 min	3.4%
G4 Allegiant Air	26	4%	57.7%	14.4 min	3.8%
MQ Envoy Air	26	4%	88.5%	16.7 min	0.0%
YX Republic Airline	5	1%	100.0%	-3.2 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
DAY–DFW	Dayton to Dallas/Fort Worth	119	84.9%	-1.4 min	1.7%
DAY–CLT	Dayton to Charlotte	116	87.9%	2.9 min	0.0%
DAY–ORD	Dayton to Chicago	115	77.4%	21.0 min	0.9%
DAY–ATL	Dayton to Atlanta	114	91.2%	-9.4 min	0.9%
DAY–DCA	Dayton to Washington	79	79.7%	13.7 min	3.8%
DAY–DEN	Dayton to Denver	30	90.0%	-2.6 min	0.0%
DAY–LGA	Dayton to New York	30	86.7%	-8.1 min	3.3%
DAY–PGD	Dayton to Punta Gorda	9	55.6%	5.0 min	11.1%
DAY–SFB	Dayton to Sanford	9	33.3%	34.6 min	0.0%
DAY–PIE	Dayton to St. Petersburg	8	87.5%	1.3 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), June 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Jun 2024	Minutes
Air carrier	29.1%	34.4%	2,908
Late-arriving aircraft	50.1%	41.5%	5,009
National Aviation System	18.6%	17.8%	1,859
Extreme weather	2.2%	6.0%	220
Security	0.0%	0.2%	0

9,996 delay minutes on 90 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 DAY on time in June 2024?

81.6% of 629 scheduled domestic departures left less than 15 minutes late, and 83.8% reached their destination on time. The national figures that month were 73.7% and 73.9%.

How does that compare with a year earlier?

June 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 June 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for DAY · methodology · corrections.