Louisville Muhammad Ali International in March 2024

84.0%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 2,025 domestic departures from Louisville Muhammad Ali International (SDF). 84.0% left less than 15 minutes late and 83.2% reached their destination on time; 0.4% were cancelled.

Nationally that month, 78.5% of flights departed on time and 78.3% arrived on time, so SDF departures were 5.5 points above the national departure figure.

Flights arriving at SDF that month were on time 79.5% of the time (2,025 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 40%, air carrier 32% and national aviation system 24%.

On time 83.2%
Arrived 15+ minutes late 16.3%
Cancelled 0.4%
Diverted 0.0%

Every scheduled departure from SDF 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	SDF, 12 months to Jul 2026	All reported flights, Mar 2024
Departed on time	84.0%	—	80.0%	78.5%
Arrived on time	83.2%	—	79.7%	78.3%
Cancelled	0.4%	—	2.2%	0.9%
Average departure delay (late minutes only)	12.3 min	—	15.9 min	15.7 min
Scheduled departures a day	68	—	63	19,726
Scheduled departures	2,025	—	23,144	591,767

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	470	23%	78.9%	5.7 min	0.4%
YX Republic Airline	436	22%	89.7%	-6.0 min	0.0%
AA American Airlines	274	14%	72.6%	10.7 min	0.7%
DL Delta Air Lines	200	10%	93.5%	-6.7 min	0.0%
OO SkyWest Airlines	156	8%	88.5%	2.1 min	0.6%
OH PSA Airlines	150	7%	88.0%	4.7 min	0.0%
MQ Envoy Air	121	6%	78.5%	-0.1 min	2.5%
UA United Airlines	97	5%	92.8%	-9.3 min	1.0%
NK Spirit Airlines	73	4%	65.8%	19.0 min	0.0%
G4 Allegiant Air	48	2%	70.8%	21.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SDF–ATL	Louisville to Atlanta	249	90.0%	-2.7 min	0.4%
SDF–DFW	Louisville to Dallas/Fort Worth	186	80.1%	-1.6 min	1.1%
SDF–CLT	Louisville to Charlotte	182	74.7%	10.1 min	0.5%
SDF–ORD	Louisville to Chicago	170	83.5%	-2.3 min	0.0%
SDF–LGA	Louisville to New York	129	87.6%	7.4 min	0.0%
SDF–MCO	Louisville to Orlando	107	70.1%	18.8 min	0.0%
SDF–DEN	Louisville to Denver	93	89.2%	-1.6 min	1.1%
SDF–DCA	Louisville to Washington	89	88.8%	8.8 min	0.0%
SDF–EWR	Louisville to Newark	89	95.5%	-17.0 min	0.0%
SDF–DTW	Louisville to Detroit	86	91.9%	-7.5 min	0.0%
SDF–MDW	Louisville to Chicago	86	88.4%	-4.2 min	0.0%
SDF–BWI	Louisville to Baltimore	77	92.2%	-6.8 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 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2024	Minutes
Air carrier	31.9%	32.1%	7,460
Late-arriving aircraft	39.8%	42.1%	9,313
National Aviation System	23.8%	21.4%	5,575
Extreme weather	4.4%	4.2%	1,036
Security	0.0%	0.2%	6

23,390 delay minutes on 331 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 SDF on time in March 2024?

84.0% of 2,025 scheduled domestic departures left less than 15 minutes late, and 83.2% 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 SDF · methodology · corrections.