Louis Armstrong New Orleans International in July 2025

68.9%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 July 2025, reporting carriers scheduled 4,039 domestic departures from Louis Armstrong New Orleans International (MSY). 68.9% left less than 15 minutes late and 70.0% reached their destination on time; 1.8% were cancelled.

Nationally that month, 69.7% of flights departed on time and 69.0% arrived on time, so MSY departures were 0.8 points below the national departure figure.

A year earlier, in July 2024, the airport had 4,192 departures with 63.0% leaving on time: a change of +5.9 points, with flights down 4%.

Flights arriving at MSY that month were on time 65.5% of the time (4,039 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 46%, air carrier 29% and national aviation system 19%.

On time 70.0%
Arrived 15+ minutes late 27.4%
Cancelled 1.8%
Diverted 0.7%

Every scheduled departure from MSY in July 2025, judged by arrival at the destination.

July 2025 against a year earlier, the airport's year and the nation

Measure	Jul 2025	Jul 2024	MSY, 12 months to Jul 2026	All reported flights, Jul 2025
Departed on time	68.9%	63.0%	76.0%	69.7%
Arrived on time	70.0%	63.2%	76.9%	69.0%
Cancelled	1.8%	3.1%	1.5%	2.5%
Average departure delay (late minutes only)	24.8 min	29.5 min	17.3 min	24.3 min
Scheduled departures a day	135	140	135	21,048
Scheduled departures	4,039	4,192	49,152	631,428

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	1,511	37%	70.0%	14.1 min	0.9%
AA American Airlines	618	15%	64.2%	26.3 min	2.9%
DL Delta Air Lines	611	15%	77.6%	9.1 min	1.8%
UA United Airlines	483	12%	71.2%	17.7 min	1.2%
NK Spirit Airlines	347	9%	71.5%	12.3 min	2.0%
MQ Envoy Air	98	2%	76.5%	24.6 min	0.0%
OO SkyWest Airlines	84	2%	79.8%	10.5 min	0.0%
OH PSA Airlines	77	2%	49.4%	60.6 min	15.6%
B6 JetBlue Airways	62	2%	46.8%	49.5 min	3.2%
AS Alaska Airlines	61	2%	70.5%	10.1 min	0.0%
YX Republic Airline	49	1%	69.4%	30.9 min	6.1%
F9 Frontier Airlines	38	1%	57.9%	31.0 min	2.6%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
MSY–ATL	New Orleans to Atlanta	340	78.8%	7.4 min	1.2%
MSY–DFW	New Orleans to Dallas/Fort Worth	254	54.3%	42.6 min	3.9%
MSY–IAH	New Orleans to Houston	242	70.7%	16.1 min	1.7%
MSY–MCO	New Orleans to Orlando	221	68.3%	19.6 min	0.0%
MSY–AUS	New Orleans to Austin	193	72.0%	17.4 min	0.5%
MSY–ORD	New Orleans to Chicago	181	72.4%	15.9 min	0.0%
MSY–HOU	New Orleans to Houston	180	72.8%	12.8 min	0.6%
MSY–DAL	New Orleans to Dallas	168	70.2%	10.3 min	1.8%
MSY–CLT	New Orleans to Charlotte	166	78.9%	3.9 min	0.6%
MSY–DEN	New Orleans to Denver	160	72.5%	12.7 min	0.6%
MSY–DCA	New Orleans to Washington	150	54.0%	49.0 min	10.0%
MSY–LAX	New Orleans to Los Angeles	145	80.0%	11.0 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), July 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jul 2025	Minutes
Air carrier	29.3%	31.1%	26,540
Late-arriving aircraft	45.5%	40.8%	41,285
National Aviation System	19.4%	20.7%	17,585
Extreme weather	5.7%	7.3%	5,199
Security	0.1%	0.1%	99

90,708 delay minutes on 1,107 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 July 2025?

68.9% of 4,039 scheduled domestic departures left less than 15 minutes late, and 70.0% reached their destination on time. The national figures that month were 69.7% and 69.0%.

How does that compare with a year earlier?

In July 2024, 63.0% of 4,192 departures left on time and 3.1% were cancelled, against 68.9% and 1.8% in July 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for July 2025; 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.