James M Cox/Dayton International in October 2023

89.7%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 October 2023, reporting carriers scheduled 642 domestic departures from James M Cox/Dayton International (DAY). 89.7% left less than 15 minutes late and 88.8% reached their destination on time; 0.2% were cancelled.

Nationally that month, 83.8% of flights departed on time and 84.0% arrived on time, so DAY departures were 5.9 points above the national departure figure.

Flights arriving at DAY that month were on time 87.1% of the time (641 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 47%, air carrier 43% and national aviation system 9%.

On time 88.8%
Arrived 15+ minutes late 10.7%
Cancelled 0.2%
Diverted 0.3%

Every scheduled departure from DAY in October 2023, judged by arrival at the destination.

October 2023 against a year earlier, the airport's year and the nation

Measure	Oct 2023	Year earlier	DAY, 12 months to Jul 2026	All reported flights, Oct 2023
Departed on time	89.7%	—	78.8%	83.8%
Arrived on time	88.8%	—	77.4%	84.0%
Cancelled	0.2%	—	2.7%	0.4%
Average departure delay (late minutes only)	9.3 min	—	20.9 min	11.0 min
Scheduled departures a day	21	—	22	19,966
Scheduled departures	642	—	7,918	598,968

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OH PSA Airlines	316	49%	84.8%	3.3 min	0.3%
DL Delta Air Lines	117	18%	96.6%	-12.0 min	0.0%
OO SkyWest Airlines	102	16%	92.2%	-7.5 min	0.0%
9E Endeavor Air	28	4%	96.4%	-11.0 min	0.0%
YX Republic Airline	27	4%	96.3%	-9.0 min	0.0%
G4 Allegiant Air	26	4%	73.1%	9.3 min	0.0%
MQ Envoy Air	26	4%	88.5%	-9.1 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
DAY–ATL	Dayton to Atlanta	118	95.8%	-11.3 min	0.0%
DAY–DFW	Dayton to Dallas/Fort Worth	116	85.3%	-0.6 min	0.9%
DAY–CLT	Dayton to Charlotte	115	86.1%	7.7 min	0.0%
DAY–DCA	Dayton to Washington	111	83.8%	-0.3 min	0.0%
DAY–ORD	Dayton to Chicago	71	91.5%	-6.9 min	0.0%
DAY–LGA	Dayton to New York	54	98.1%	-11.5 min	0.0%
DAY–DEN	Dayton to Denver	31	93.5%	-8.7 min	0.0%
DAY–PGD	Dayton to Punta Gorda	9	66.7%	10.6 min	0.0%
DAY–PIE	Dayton to St. Petersburg	9	100.0%	-15.2 min	0.0%
DAY–SFB	Dayton to Sanford	8	50.0%	35.4 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), October 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Oct 2023	Minutes
Air carrier	43.2%	41.3%	2,425
Late-arriving aircraft	46.7%	40.5%	2,617
National Aviation System	8.8%	14.4%	492
Extreme weather	1.3%	3.7%	73
Security	0.0%	0.2%	0

5,607 delay minutes on 69 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 October 2023?

89.7% of 642 scheduled domestic departures left less than 15 minutes late, and 88.8% reached their destination on time. The national figures that month were 83.8% and 84.0%.

How does that compare with a year earlier?

October 2022 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 October 2023; 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.