Best Time to Fly ORD to MSY: On-Time Stats by Hour & Airline
Chicago O'Hare International → Louis Armstrong New Orleans International
Data through July 2026 · Last updated October 18, 2026
2,403 flights were scheduled from Chicago (ORD) to New Orleans (MSY) in the last 12 months, and 75.2% of those that flew arrived on time, 2.5 points below the US average of 77.6%.
Among 6 airlines, Envoy Air led with 83.2% on time and American Airlines was last with 61.1%.
Over 24 months, Tuesday was the most reliable day (82% on time) and July the worst month (65%).
The cancellation rate was 2.3% (US average 1.8%).
ORD 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 |
|---|---|---|---|---|
| Envoy Air | 83.2% | 58 min | 2.2% | 445 |
| Republic Airways | 79.5% | 71 min | 1.8% | 388 |
| SkyWest Airlines | 79.4% | 60 min | 1.8% | 109 |
| United Airlines | 75.9% | 66 min | 1.3% | 843 |
| Spirit Airlines | 70.5% | 82 min | 6.3% | 206 |
| American Airlines | 61.1% | 88 min | 3.0% | 401 |
| Frontier Airlines | Limited data | 11 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ORD to MSY
On-time arrival % by scheduled departure hour (local time), 4,293 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 12am–1am | Limited data | 2 | |
| 5am–6am | Limited data | 12 | |
| 6am–7am | 93.8% | 0.0% | 32 |
| 7am–8am | 88.3% | 0.4% | 507 |
| 8am–9am | 85.0% | 1.4% | 292 |
| 9am–10am | 85.5% | 1.4% | 295 |
| 10am–11am | 83.7% | 1.6% | 884 |
| 11am–12pm | 85.0% | 0.9% | 115 |
| 12pm–1pm | 83.0% | 2.2% | 181 |
| 1pm–2pm | 79.4% | 1.8% | 163 |
| 2pm–3pm | 65.4% | 2.4% | 167 |
| 3pm–4pm | 78.4% | 2.9% | 139 |
| 4pm–5pm | 74.5% | 0.0% | 47 |
| 5pm–6pm | Limited data | 20 | |
| 6pm–7pm | 65.2% | 0.9% | 116 |
| 7pm–8pm | 65.9% | 2.0% | 641 |
| 8pm–9pm | 61.5% | 5.3% | 414 |
| 9pm–10pm | 57.2% | 1.5% | 266 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on ORD 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) | 68.4% | -9.9 pts | 6.2% | 81 |
| Christmas & New Year (Dec 20 - Jan 3) | 80.1% | +1.8 pts | 0.6% | 174 |
| Summer peak (Jun 15 - Aug 15) | 67.8% | -10.5 pts | 1.6% | 731 |
| All other days | 78.3% | — | 1.9% | 3,307 |
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).