Louisville Muhammad Ali International in November 2024

89.2%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 November 2024, reporting carriers scheduled 1,904 domestic departures from Louisville Muhammad Ali International (SDF). 89.2% left less than 15 minutes late and 86.3% reached their destination on time; 0.1% were cancelled.

Nationally that month, 85.2% of flights departed on time and 84.8% arrived on time, so SDF departures were 4.0 points above the national departure figure.

A year earlier, in November 2023, the airport had 1,885 departures with 88.9% leaving on time: a change of +0.3 points, with flights up 1%.

Flights arriving at SDF that month were on time 86.3% of the time (1,902 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 45%, late-arriving aircraft 32% and national aviation system 21%.

On time 86.3%
Arrived 15+ minutes late 13.4%
Cancelled 0.1%
Diverted 0.3%

Every scheduled departure from SDF in November 2024, judged by arrival at the destination.

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

Measure	Nov 2024	Nov 2023	SDF, 12 months to Jul 2026	All reported flights, Nov 2024
Departed on time	89.2%	88.9%	80.0%	85.2%
Arrived on time	86.3%	89.0%	79.7%	84.8%
Cancelled	0.1%	0.2%	2.2%	0.5%
Average departure delay (late minutes only)	8.9 min	9.8 min	15.9 min	10.2 min
Scheduled departures a day	64	63	63	19,180
Scheduled departures	1,904	1,885	23,144	575,404

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
YX Republic Airline	615	32%	85.7%	-5.6 min	0.0%
WN Southwest Airlines	400	21%	89.3%	-5.1 min	0.3%
AA American Airlines	209	11%	79.9%	13.3 min	0.0%
DL Delta Air Lines	200	11%	90.0%	-5.9 min	0.0%
OH PSA Airlines	131	7%	87.8%	7.4 min	0.0%
OO SkyWest Airlines	121	6%	88.4%	-7.1 min	0.0%
MQ Envoy Air	85	4%	89.4%	-7.8 min	0.0%
UA United Airlines	59	3%	76.3%	10.8 min	0.0%
G4 Allegiant Air	48	3%	79.2%	-2.8 min	0.0%
NK Spirit Airlines	36	2%	86.1%	-3.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SDF–ATL	Louisville to Atlanta	225	90.2%	-5.9 min	0.0%
SDF–ORD	Louisville to Chicago	215	82.8%	-4.5 min	0.0%
SDF–CLT	Louisville to Charlotte	156	84.0%	7.4 min	0.0%
SDF–DFW	Louisville to Dallas/Fort Worth	151	79.5%	8.8 min	0.0%
SDF–LGA	Louisville to New York	130	93.1%	-8.4 min	0.0%
SDF–DTW	Louisville to Detroit	109	91.7%	-11.3 min	0.0%
SDF–DEN	Louisville to Denver	89	82.0%	5.1 min	0.0%
SDF–DCA	Louisville to Washington	83	88.0%	7.3 min	0.0%
SDF–EWR	Louisville to Newark	83	75.9%	-2.8 min	0.0%
SDF–MDW	Louisville to Chicago	81	88.9%	-1.1 min	0.0%
SDF–MSP	Louisville to Minneapolis	81	90.1%	-8.1 min	0.0%
SDF–BWI	Louisville to Baltimore	74	91.9%	-6.1 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), November 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Nov 2024	Minutes
Air carrier	45.4%	36.9%	7,844
Late-arriving aircraft	31.9%	35.6%	5,514
National Aviation System	21.3%	21.9%	3,671
Extreme weather	1.1%	5.4%	182
Security	0.4%	0.2%	61

17,272 delay minutes on 255 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 November 2024?

89.2% of 1,904 scheduled domestic departures left less than 15 minutes late, and 86.3% reached their destination on time. The national figures that month were 85.2% and 84.8%.

How does that compare with a year earlier?

In November 2023, 88.9% of 1,885 departures left on time and 0.2% were cancelled, against 89.2% and 0.1% in November 2024.

Provenance

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