James M Cox/Dayton International in March 2024

90.5%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 March 2024, reporting carriers scheduled 656 domestic departures from James M Cox/Dayton International (DAY). 90.5% left less than 15 minutes late and 88.6% reached their destination on time; 0.3% were cancelled.

Nationally that month, 78.5% of flights departed on time and 78.3% arrived on time, so DAY departures were 12.0 points above the national departure figure.

Flights arriving at DAY that month were on time 84.6% of the time (657 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 41%, air carrier 26% and national aviation system 17%.

On time 88.6%
Arrived 15+ minutes late 11.0%
Cancelled 0.3%
Diverted 0.2%

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

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

Measure	Mar 2024	Year earlier	DAY, 12 months to Jul 2026	All reported flights, Mar 2024
Departed on time	90.5%	—	78.8%	78.5%
Arrived on time	88.6%	—	77.4%	78.3%
Cancelled	0.3%	—	2.7%	0.9%
Average departure delay (late minutes only)	9.1 min	—	20.9 min	15.7 min
Scheduled departures a day	22	—	22	19,726
Scheduled departures	656	—	7,918	591,767

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OH PSA Airlines	313	48%	87.9%	-1.3 min	0.0%
OO SkyWest Airlines	117	18%	88.9%	-5.5 min	0.9%
DL Delta Air Lines	84	13%	92.9%	-6.2 min	0.0%
9E Endeavor Air	61	9%	96.7%	-14.4 min	0.0%
YX Republic Airline	51	8%	94.1%	-10.0 min	0.0%
G4 Allegiant Air	27	4%	55.6%	22.9 min	0.0%
MQ Envoy Air	3	0%	66.7%	0.0 min	33.3%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
DAY–ATL	Dayton to Atlanta	119	93.3%	-7.9 min	0.0%
DAY–CLT	Dayton to Charlotte	116	87.1%	0.3 min	0.0%
DAY–DCA	Dayton to Washington	109	86.2%	-1.6 min	0.0%
DAY–ORD	Dayton to Chicago	109	88.1%	-1.9 min	0.0%
DAY–DFW	Dayton to Dallas/Fort Worth	93	89.2%	-2.9 min	1.1%
DAY–LGA	Dayton to New York	52	98.1%	-13.9 min	0.0%
DAY–DEN	Dayton to Denver	31	96.8%	-22.2 min	3.2%
DAY–PGD	Dayton to Punta Gorda	9	66.7%	26.1 min	0.0%
DAY–PIE	Dayton to St. Petersburg	9	66.7%	-0.6 min	0.0%
DAY–SFB	Dayton to Sanford	9	33.3%	43.1 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), March 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2024	Minutes
Air carrier	25.5%	32.1%	1,573
Late-arriving aircraft	40.8%	42.1%	2,516
National Aviation System	17.4%	21.4%	1,075
Extreme weather	16.2%	4.2%	999
Security	0.0%	0.2%	0

6,163 delay minutes on 72 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 March 2024?

90.5% of 656 scheduled domestic departures left less than 15 minutes late, and 88.6% reached their destination on time. The national figures that month were 78.5% and 78.3%.

How does that compare with a year earlier?

March 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 March 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.