Best Time to Fly LGA to MSY: On-Time Stats by Hour & Airline
LaGuardia → Louis Armstrong New Orleans International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 71.9% of New York (LGA) to New Orleans (MSY) flights arrived on time (1,420 scheduled flights). That is 5.7 points below the national average of 77.6%.
Delta Air Lines was the most punctual of the 3 airlines on the route at 79.4%, while Southwest Airlines trailed at 56.9%.
September has been the best month (82% on time) and Monday the weakest day of the week (69%).
4.1% of flights were cancelled, versus 1.8% nationally.
LGA to MSY on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Lines | 79.4% | 76 min | 4.7% | 718 |
| American Airlines | 70.5% | 79 min | 2.6% | 345 |
| Southwest Airlines | 56.9% | 74 min | 4.2% | 333 |
| Republic Airways | Limited data | 20 | ||
| Frontier Airlines | Limited data | 4 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly LGA to MSY
On-time arrival % by scheduled departure hour (local time), 2,797 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 93.0% | 0.0% | 86 |
| 7am–8am | 88.3% | 4.4% | 428 |
| 8am–9am | 88.4% | 2.6% | 115 |
| 9am–10am | 81.6% | 0.0% | 49 |
| 10am–11am | 83.3% | 3.1% | 161 |
| 11am–12pm | 72.7% | 2.6% | 229 |
| 12pm–1pm | Limited data | 22 | |
| 1pm–2pm | 75.3% | 2.4% | 84 |
| 2pm–3pm | 71.1% | 2.0% | 351 |
| 3pm–4pm | 66.3% | 2.2% | 415 |
| 4pm–5pm | 60.0% | 4.2% | 551 |
| 5pm–6pm | 51.8% | 4.2% | 119 |
| 6pm–7pm | 74.6% | 4.5% | 132 |
| 7pm–8pm | 68.6% | 0.0% | 35 |
| 8pm–9pm | Limited data | 16 | |
| 10pm–11pm | Limited data | 4 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on LGA to MSY
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 77.5% | +3.4 pts | 0.0% | 49 |
| Christmas & New Year (Dec 20 - Jan 3) | 77.1% | +3.0 pts | 4.5% | 110 |
| Summer peak (Jun 15 - Aug 15) | 64.4% | -9.7 pts | 5.4% | 461 |
| All other days | 74.1% | — | 2.6% | 2,177 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).