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Airport · 12 months to July 2026
Louis Armstrong New Orleans International: delays and on-time record
New Orleans, Louisiana
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. Data through July 2026; this is a monthly history, not live airport status.
Louis Armstrong New Orleans International (MSY) in New Orleans, Louisiana had 49,152 scheduled domestic departures by reporting carriers in the 12 months to July 2026, about 135 a day, on 47 routes.
76.0% of those flights left the gate less than 15 minutes late, level with the national departure figure of 76.1%. Flights arriving at MSY were on time 76.2% of the time, level with the national arrival figure of 76.0%.
1.5% of scheduled departures were cancelled (national: 1.8%), and the average departure delay, counting early and on-time departures as zero, was 17.3 min.
Southwest Airlines is the largest reporting carrier at MSY with 37% of departures. Among carriers with at least 492 departures, United Airlines had the highest on-time arrival share for its MSY departures (83.4%) and JetBlue Airways the lowest (66.1%).
On-time departures are down 1.0 points on the previous 12 months (77.0%).
Of the delay minutes that carriers assigned to a BTS cause category for flights leaving MSY, late-arriving aircraft 45%, air carrier 29% and national aviation system 21%.
- On time 76.9%
- Arrived 15+ minutes late 21.3%
- Cancelled 1.5%
- Diverted 0.3%
As origin and as destination, against the nation
| Measure | Departures from MSY | Arrivals at MSY | All reported flights | MSY departures, previous 12 months |
|---|---|---|---|---|
| Departed on time (less than 15 min late) | 76.0% | 74.3% | 76.1% | 77.0% |
| Arrived on time | 76.9% | 76.2% | 76.0% | 77.8% |
| Cancelled | 1.5% | 1.4% | 1.8% | 2.0% |
| Diverted | 0.3% | 0.2% | 0.3% | 0.3% |
| Average departure delay (late minutes only) | 17.3 min | 16.1 min | 17.4 min | 16.9 min |
| Arrival delay minutes per 100 flights | 1,638 | 1,498 | 1,684 | 1,593 |
| Scheduled flights | 49,152 | 49,150 | 7,043,858 | 50,929 |
12 months to July 2026. The first column follows flights that left MSY; the second follows flights that landed there. Year on year, on-time departures moved −1.0 pts.
Airlines at MSY
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| WN Southwest Airlines | 18,308 | 37% | 75.7% | 7.7 min | 0.6% |
| DL Delta Air Lines | 7,569 | 15% | 81.6% | 2.9 min | 2.2% |
| AA American Airlines | 7,504 | 15% | 74.7% | 16.1 min | 2.1% |
| UA United Airlines | 6,807 | 14% | 83.4% | 1.3 min | 0.7% |
| NK Spirit Airlines | 2,614 | 5% | 74.6% | 10.1 min | 2.8% |
| B6 JetBlue Airways | 1,373 | 3% | 66.1% | 21.3 min | 3.0% |
| F9 Frontier Airlines | 1,034 | 2% | 66.5% | 21.3 min | 2.2% |
| OH PSA Airlines | 913 | 2% | 68.7% | 23.6 min | 5.7% |
| YX Republic Airline | 824 | 2% | 79.2% | 0.9 min | 3.2% |
| MQ Envoy Air | 792 | 2% | 77.1% | 4.8 min | 1.8% |
| AS Alaska Airlines | 736 | 1% | 73.1% | 7.3 min | 1.0% |
| OO SkyWest Airlines | 577 | 1% | 77.8% | 5.6 min | 0.7% |
| G4 Allegiant Air | 101 | 0% | 76.2% | 7.8 min | 2.0% |
Departures from MSY by reporting carrier, ordered by flights; on time means the flight reached its destination less than 15 minutes late. Green is at or above the airport's overall share of 76.9%. Carriers fly different routes at different hours, so the rows are not a like-for-like test.
Busiest routes from MSY
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| MSY–ATL | New Orleans to Atlanta | 4,028 | 81.0% | 4.2 min | 1.5% |
| MSY–IAH | New Orleans to Houston | 2,929 | 82.5% | 3.0 min | 0.4% |
| MSY–DFW | New Orleans to Dallas/Fort Worth | 2,808 | 70.7% | 18.9 min | 3.2% |
| MSY–ORD | New Orleans to Chicago | 2,401 | 75.8% | 10.8 min | 2.5% |
| MSY–HOU | New Orleans to Houston | 2,297 | 75.7% | 5.9 min | 0.6% |
| MSY–DAL | New Orleans to Dallas | 2,287 | 75.8% | 7.8 min | 1.1% |
| MSY–DEN | New Orleans to Denver | 2,277 | 79.7% | 3.8 min | 0.4% |
| MSY–MCO | New Orleans to Orlando | 2,243 | 76.2% | 7.6 min | 1.2% |
| MSY–AUS | New Orleans to Austin | 1,999 | 77.3% | 6.4 min | 0.4% |
| MSY–DCA | New Orleans to Washington | 1,948 | 68.1% | 18.8 min | 3.0% |
| MSY–CLT | New Orleans to Charlotte | 1,712 | 81.1% | 8.9 min | 1.3% |
| MSY–MIA | New Orleans to Miami | 1,522 | 78.5% | 9.3 min | 1.2% |
| MSY–BNA | New Orleans to Nashville | 1,483 | 77.1% | 7.4 min | 0.6% |
| MSY–LAX | New Orleans to Los Angeles | 1,457 | 78.5% | 5.4 min | 0.5% |
| MSY–LGA | New Orleans to New York | 1,420 | 67.9% | 17.9 min | 3.7% |
| MSY–FLL | New Orleans to Fort Lauderdale | 1,412 | 72.3% | 12.2 min | 2.3% |
| MSY–EWR | New Orleans to Newark | 1,228 | 82.7% | -0.5 min | 2.4% |
| MSY–BWI | New Orleans to Baltimore | 1,157 | 79.4% | 5.5 min | 1.1% |
| MSY–JFK | New Orleans to New York | 1,142 | 74.7% | 5.1 min | 5.2% |
| MSY–PHL | New Orleans to Philadelphia | 1,131 | 77.7% | 15.5 min | 2.8% |
| MSY–TPA | New Orleans to Tampa | 1,063 | 76.2% | 7.8 min | 1.0% |
| MSY–MDW | New Orleans to Chicago | 1,014 | 73.4% | 10.2 min | 1.2% |
| MSY–PHX | New Orleans to Phoenix | 934 | 78.3% | 8.7 min | 0.4% |
| MSY–BOS | New Orleans to Boston | 853 | 61.5% | 23.5 min | 2.1% |
| MSY–LAS | New Orleans to Las Vegas | 847 | 78.4% | 5.8 min | 0.1% |
| MSY–DTW | New Orleans to Detroit | 810 | 81.5% | 6.6 min | 1.6% |
| MSY–STL | New Orleans to St. Louis | 732 | 81.3% | 2.1 min | 0.4% |
| MSY–IAD | New Orleans to Washington | 631 | 91.3% | -4.3 min | 0.6% |
| MSY–SEA | New Orleans to Seattle | 626 | 71.1% | 9.3 min | 0.8% |
| MSY–SFO | New Orleans to San Francisco | 524 | 75.6% | 6.1 min | 0.6% |
| MSY–SLC | New Orleans to Salt Lake City | 455 | 90.5% | -2.8 min | 0.2% |
| MSY–MSP | New Orleans to Minneapolis | 440 | 81.4% | 5.9 min | 2.5% |
| MSY–MCI | New Orleans to Kansas City | 364 | 79.9% | 7.3 min | 0.3% |
| MSY–SAT | New Orleans to San Antonio | 346 | 76.6% | 7.2 min | 0.3% |
| MSY–SAN | New Orleans to San Diego | 342 | 69.3% | 8.9 min | 0.0% |
The 35 busiest of 47 routes with reported flights. Routes with at least 10 flights a month have their own page.
Month by month
By scheduled departure hour
Among hours with at least 983 departures, 5 am to 6 am had the highest on-time share (91.5% of 2,736 flights) and 6 pm to 7 pm the lowest (59.8% of 3,234).
Delay causes
Cancellations by reported reason (733 in the period): air carrier 31%, weather 58%, national aviation system 11%, security 0%.
Checkpoint volumes
TSA publishes daily checkpoint passenger counts for the country as a whole, not for MSY on its own. The national series through September 2026 is on the checkpoint volumes page.
Questions and answers
How often do flights leave MSY on time?
76.0% of the 49,152 scheduled domestic departures in the 12 months to July 2026 left less than 15 minutes late; the national figure was 76.1%. 1.5% were cancelled.
How often do flights arrive at MSY on time?
76.2% of 49,150 scheduled arrivals were on time by the BTS definition, against 76.0% nationally.
Which airline has the highest on-time share at MSY?
Counting departures from MSY and whether they reached their destination on time, United Airlines had the highest share (83.4% of 6,807 flights), then Delta Air Lines (81.6%) and Republic Airline (79.2%). Carriers fly different routes at different hours, so the figures are not a like-for-like test.
What causes delays at MSY?
For departures from MSY that reached their destination 15 or more minutes late, carriers attributed the delay minutes as follows: late-arriving aircraft 45%, air carrier 29%, national aviation system 21%, extreme weather 5%, security 0%.
What time of day has the highest on-time share at MSY?
Departures scheduled from 5 am to 6 am local time left on time 91.5% of the time, the highest of any hour with enough flights to compare; 6 pm to 7 pm was lowest at 59.8%.
Is it getting better?
On-time departures for the 12 months to July 2026 were 76.0%, down 1.0 points on the previous 12 months (77.0%). The monthly chart shows each of the last 36 months, and each month has its own page.
Does this page show today's delays at MSY?
No. BTS publishes on-time records about two months after the month ends, so this page is a monthly history through July 2026. For live conditions use the FAA airport status service or your airline.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987 to present), monthly files August 2023 to July 2026; airport name from the BTS airport lookup table. US government works in the public domain. Domestic scheduled flights by reporting carriers only: international flights, charters and smaller carriers are not in the source. Totals and averages only; no individual flight or aircraft is identified. See the methodology; report processing errors through corrections.