Louis Armstrong New Orleans International in December 2023

82.4%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 December 2023, reporting carriers scheduled 4,279 domestic departures from Louis Armstrong New Orleans International (MSY). 82.4% left less than 15 minutes late and 84.9% reached their destination on time; 0.3% were cancelled.

Nationally that month, 83.1% of flights departed on time and 83.8% arrived on time, so MSY departures were 0.7 points below the national departure figure.

Flights arriving at MSY that month were on time 82.5% of the time (4,282 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 56%, air carrier 27% and national aviation system 15%.

On time 84.9%
Arrived 15+ minutes late 14.7%
Cancelled 0.3%
Diverted 0.1%

Every scheduled departure from MSY in December 2023, judged by arrival at the destination.

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

Measure	Dec 2023	Year earlier	MSY, 12 months to Jul 2026	All reported flights, Dec 2023
Departed on time	82.4%	—	76.0%	83.1%
Arrived on time	84.9%	—	76.9%	83.8%
Cancelled	0.3%	—	1.5%	0.4%
Average departure delay (late minutes only)	11.0 min	—	17.3 min	11.6 min
Scheduled departures a day	143	—	135	19,013
Scheduled departures	4,279	—	49,152	570,394

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	1,736	41%	83.0%	2.1 min	0.3%
DL Delta Air Lines	628	15%	91.6%	-8.5 min	0.0%
AA American Airlines	540	13%	84.1%	8.1 min	0.2%
UA United Airlines	495	12%	91.3%	-7.0 min	0.2%
NK Spirit Airlines	381	9%	81.1%	1.7 min	1.0%
B6 JetBlue Airways	140	3%	72.9%	10.5 min	0.0%
MQ Envoy Air	123	3%	74.8%	6.3 min	0.0%
AS Alaska Airlines	71	2%	91.5%	-7.7 min	0.0%
OH PSA Airlines	53	1%	90.6%	-0.5 min	0.0%
F9 Frontier Airlines	46	1%	84.8%	8.6 min	0.0%
YX Republic Airline	30	1%	86.7%	-10.4 min	0.0%
OO SkyWest Airlines	23	1%	65.2%	18.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
MSY–ATL	New Orleans to Atlanta	405	91.6%	-4.5 min	0.0%
MSY–MCO	New Orleans to Orlando	246	79.7%	3.2 min	1.6%
MSY–DEN	New Orleans to Denver	232	87.9%	-2.0 min	0.0%
MSY–AUS	New Orleans to Austin	229	80.3%	5.5 min	0.0%
MSY–DFW	New Orleans to Dallas/Fort Worth	225	83.6%	5.9 min	0.0%
MSY–DAL	New Orleans to Dallas	212	86.3%	2.0 min	0.0%
MSY–HOU	New Orleans to Houston	207	88.4%	-3.5 min	0.0%
MSY–IAH	New Orleans to Houston	189	89.4%	-5.4 min	0.0%
MSY–MIA	New Orleans to Miami	174	73.6%	8.0 min	1.1%
MSY–ORD	New Orleans to Chicago	146	89.0%	-3.0 min	0.7%
MSY–FLL	New Orleans to Fort Lauderdale	145	71.0%	12.4 min	0.0%
MSY–DCA	New Orleans to Washington	144	82.6%	2.4 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), December 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2023	Minutes
Air carrier	26.7%	37.1%	10,081
Late-arriving aircraft	56.3%	38.8%	21,250
National Aviation System	15.2%	17.6%	5,739
Extreme weather	1.4%	6.2%	516
Security	0.4%	0.3%	165

37,751 delay minutes on 631 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 MSY on time in December 2023?

82.4% of 4,279 scheduled domestic departures left less than 15 minutes late, and 84.9% reached their destination on time. The national figures that month were 83.1% and 83.8%.

How does that compare with a year earlier?

December 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 December 2023; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for MSY · methodology · corrections.