Best Time to Fly ATL to MSY: On-Time Stats by Hour & Airline
Hartsfield-Jackson Atlanta International → Louis Armstrong New Orleans International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 81.2% of Atlanta (ATL) to New Orleans (MSY) flights arrived on time (4,025 scheduled flights). That is 3.5 points above the national average of 77.6%.
Delta Air Lines was the most punctual of the 4 airlines on the route at 83.1%, while Frontier Airlines trailed at 60.7%.
November has been the best month (86% on time) and Sunday the weakest day of the week (72%).
1.5% of flights were cancelled, versus 1.8% nationally.
ATL 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 | 83.1% | 58 min | 1.5% | 3,278 |
| Spirit Airlines | 79.1% | 53 min | 2.2% | 137 |
| Southwest Airlines | 78.3% | 50 min | 0.3% | 354 |
| Frontier Airlines | 60.7% | 72 min | 2.4% | 253 |
| American Airlines | Limited data | 3 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ATL to MSY
On-time arrival % by scheduled departure hour (local time), 8,514 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 87.5% | 0.0% | 32 |
| 7am–8am | 92.4% | 3.7% | 273 |
| 8am–9am | 88.9% | 1.8% | 627 |
| 9am–10am | 86.8% | 1.7% | 463 |
| 10am–11am | 83.2% | 1.2% | 418 |
| 11am–12pm | 84.8% | 2.2% | 866 |
| 12pm–1pm | 84.8% | 0.9% | 333 |
| 1pm–2pm | 81.3% | 1.6% | 578 |
| 2pm–3pm | 76.9% | 0.7% | 415 |
| 3pm–4pm | 76.4% | 1.6% | 953 |
| 4pm–5pm | 78.0% | 0.5% | 434 |
| 5pm–6pm | 73.2% | 1.0% | 711 |
| 6pm–7pm | 70.2% | 2.6% | 155 |
| 7pm–8pm | 69.4% | 1.8% | 820 |
| 8pm–9pm | 64.8% | 0.8% | 266 |
| 9pm–10pm | 68.3% | 1.1% | 381 |
| 10pm–11pm | 75.0% | 2.0% | 538 |
| 11pm–12am | 73.0% | 2.4% | 251 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on ATL 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) | 82.0% | +2.1 pts | 0.0% | 178 |
| Christmas & New Year (Dec 20 - Jan 3) | 80.1% | +0.2 pts | 1.4% | 348 |
| Summer peak (Jun 15 - Aug 15) | 70.0% | -9.9 pts | 1.6% | 1,336 |
| All other days | 79.9% | — | 1.6% | 6,652 |
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).