Miami (MIA) to New Orleans (MSY): On-Time Performance
Data through May 2026
When you fly MIA to MSY matters as much as anything else about the booking: the route swung from 81% on-time in November 2024 to just 55% in July 2024. Across the full period the route averages 71% on-time against a national 78%. Morning departures also hold up better than evening ones (86% vs 66%), which matters most in the rough months.
- On-time
- 71%
- arrived <15 min late
- Avg delay
- 21 min
- completed flights
- Cancelled
- 2.0%
- Flights/day
- 4.2
- last 12 months
- Duration
- 2h 11m
- scheduled
- Distance
- 674 mi
Best airline from MIA to MSY
4 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Airmost reliable | 84% | 8 min | 3.0% | 403 |
| Spirit Airlines | 72% | 22 min | 3.1% | 323 |
| American Airlines | 70% | 23 min | 1.7% | 2,460 |
| Southwest Airlines | 65% | 19 min | 2.5% | 79 |
Monthly on-time trend
Best time to fly from MIA to MSY
Aim for departures around 7 a.m. (92% on-time); avoid 12 p.m. departures (59%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 69% | 22 min |
| Tuesday | 76% | 20 min |
| Wednesdaybest | 78% | 15 min |
| Thursday | 70% | 25 min |
| Friday | 72% | 18 min |
| Saturday | 72% | 20 min |
| Sunday | 65% | 25 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft45%
- Airline operations35%
- National airspace system17%
- Weather4%
Frequently asked questions
- How often are flights from MIA to MSY delayed?
- 29% of MIA–MSY flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 21 minutes.
- Which airline is most reliable from MIA to MSY?
- Envoy Air has the best on-time record on this route at 84%, based on 403 flights. 4 airlines flew MIA–MSY frequently enough to compare in this period.
- What is the best time of day to fly from MIA to MSY?
- Departures around 7 a.m. have the best record (92% on-time), while departures around 12 p.m. have the worst (59%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from MIA to MSY?
- The scheduled MIA–MSY flight time averages 2h 11m over 674 miles. Actual arrival times vary — flights on this route land 15+ minutes late 29% of the time.
- How often are MIA to MSY flights cancelled?
- 2% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, slightly above the national rate of 1.6%.
- What is the worst month to fly from MIA to MSY?
- July 2024 was the roughest month in this dataset, with only 55% of arrivals on time. The best was November 2024 at 81%. If your dates are flexible, that 27-point gap is worth planning around.
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Based on 3,289 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.