James M Cox/Dayton International in August 2024

82.6%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 August 2024, reporting carriers scheduled 634 domestic departures from James M Cox/Dayton International (DAY). 82.6% left less than 15 minutes late and 81.4% reached their destination on time; 0.9% were cancelled.

Nationally that month, 75.4% of flights departed on time and 74.7% arrived on time, so DAY departures were 7.2 points above the national departure figure.

A year earlier, in August 2023, the airport had 671 departures with 82.0% leaving on time: a change of +0.6 points, with flights down 6%.

Flights arriving at DAY that month were on time 72.1% of the time (634 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 50%, air carrier 28% and national aviation system 17%.

On time 81.4%
Arrived 15+ minutes late 17.7%
Cancelled 0.9%
Diverted 0.0%

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

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

Measure	Aug 2024	Aug 2023	DAY, 12 months to Jul 2026	All reported flights, Aug 2024
Departed on time	82.6%	82.0%	78.8%	75.4%
Arrived on time	81.4%	80.5%	77.4%	74.7%
Cancelled	0.9%	1.0%	2.7%	2.1%
Average departure delay (late minutes only)	16.4 min	17.4 min	20.9 min	18.4 min
Scheduled departures a day	21	22	22	20,634
Scheduled departures	634	671	7,918	619,025

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OH PSA Airlines	317	50%	79.8%	6.1 min	0.6%
OO SkyWest Airlines	154	24%	77.3%	8.5 min	0.0%
DL Delta Air Lines	111	18%	93.7%	-9.6 min	0.0%
9E Endeavor Air	31	5%	74.2%	4.3 min	9.7%
G4 Allegiant Air	16	3%	75.0%	35.2 min	6.3%
MQ Envoy Air	5	1%	100.0%	-17.8 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
DAY–DFW	Dayton to Dallas/Fort Worth	124	86.3%	-8.3 min	0.0%
DAY–ORD	Dayton to Chicago	123	73.2%	12.6 min	0.0%
DAY–CLT	Dayton to Charlotte	119	76.5%	18.4 min	0.0%
DAY–ATL	Dayton to Atlanta	116	94.0%	-9.7 min	0.0%
DAY–DCA	Dayton to Washington	79	75.9%	8.8 min	2.5%
DAY–DEN	Dayton to Denver	31	93.5%	-7.9 min	0.0%
DAY–LGA	Dayton to New York	26	69.2%	7.7 min	11.5%
DAY–PIE	Dayton to St. Petersburg	9	88.9%	25.6 min	0.0%
DAY–SFB	Dayton to Sanford	4	50.0%	37.0 min	25.0%
DAY–PGD	Dayton to Punta Gorda	3	66.7%	62.3 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), August 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2024	Minutes
Air carrier	28.3%	33.8%	2,802
Late-arriving aircraft	49.9%	39.8%	4,932
National Aviation System	16.6%	20.4%	1,644
Extreme weather	5.2%	5.9%	510
Security	0.0%	0.1%	0

9,888 delay minutes on 112 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 August 2024?

82.6% of 634 scheduled domestic departures left less than 15 minutes late, and 81.4% reached their destination on time. The national figures that month were 75.4% and 74.7%.

How does that compare with a year earlier?

In August 2023, 82.0% of 671 departures left on time and 1.0% were cancelled, against 82.6% and 0.9% in August 2024.

Provenance

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