James M Cox/Dayton International in March 2026

74.8%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 2026, reporting carriers scheduled 635 domestic departures from James M Cox/Dayton International (DAY). 74.8% left less than 15 minutes late and 74.8% reached their destination on time; 4.3% were cancelled.

Nationally that month, 72.8% of flights departed on time and 73.2% arrived on time, so DAY departures were 2.0 points above the national departure figure.

A year earlier, in March 2025, the airport had 618 departures with 82.4% leaving on time: a change of −7.6 points, with flights up 3%.

Flights arriving at DAY that month were on time 65.3% of the time (634 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 41%, air carrier 29% and national aviation system 17%.

On time 74.8%
Arrived 15+ minutes late 20.8%
Cancelled 4.3%
Diverted 0.2%

Every scheduled departure from DAY in March 2026, judged by arrival at the destination.

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

Measure	Mar 2026	Mar 2025	DAY, 12 months to Jul 2026	All reported flights, Mar 2026
Departed on time	74.8%	82.4%	78.8%	72.8%
Arrived on time	74.8%	79.3%	77.4%	73.2%
Cancelled	4.3%	1.8%	2.7%	2.9%
Average departure delay (late minutes only)	27.5 min	18.4 min	20.9 min	20.3 min
Scheduled departures a day	21	21	22	20,403
Scheduled departures	635	618	7,918	612,102

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OH PSA Airlines	388	61%	72.4%	15.6 min	4.4%
DL Delta Air Lines	120	19%	86.7%	-12.9 min	3.3%
OO SkyWest Airlines	42	7%	61.9%	38.6 min	7.1%
G4 Allegiant Air	27	4%	55.6%	102.9 min	0.0%
UA United Airlines	27	4%	92.6%	-8.2 min	0.0%
MQ Envoy Air	22	3%	77.3%	-3.6 min	9.1%
YX Republic Airline	9	1%	77.8%	3.1 min	11.1%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
DAY–ORD	Dayton to Chicago	131	64.1%	20.4 min	10.7%
DAY–ATL	Dayton to Atlanta	120	86.7%	-12.9 min	3.3%
DAY–CLT	Dayton to Charlotte	113	79.6%	10.4 min	2.7%
DAY–DFW	Dayton to Dallas/Fort Worth	93	77.4%	-0.6 min	2.2%
DAY–DCA	Dayton to Washington	89	58.4%	48.0 min	4.5%
DAY–DEN	Dayton to Denver	31	93.5%	-8.3 min	0.0%
DAY–PHL	Dayton to Philadelphia	31	93.5%	-9.6 min	0.0%
DAY–PGD	Dayton to Punta Gorda	9	88.9%	3.9 min	0.0%
DAY–PIE	Dayton to St. Petersburg	9	33.3%	145.3 min	0.0%
DAY–SFB	Dayton to Sanford	9	44.4%	159.3 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), March 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2026	Minutes
Air carrier	28.5%	33.5%	4,670
Late-arriving aircraft	41.2%	39.3%	6,749
National Aviation System	17.2%	21.0%	2,808
Extreme weather	13.1%	5.9%	2,144
Security	0.0%	0.2%	0

16,371 delay minutes on 132 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 2026?

74.8% of 635 scheduled domestic departures left less than 15 minutes late, and 74.8% reached their destination on time. The national figures that month were 72.8% and 73.2%.

How does that compare with a year earlier?

In March 2025, 82.4% of 618 departures left on time and 1.8% were cancelled, against 74.8% and 4.3% in March 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for March 2026; 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.