Carrier route record
AAMIA→MSY
American Airlines · Miami to New Orleans
- Flights
- 1,295
- Period
- September 2025 to August 2026
- Share of route
- 88%
- Carriers
- 5
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with American Airlines.
American on MIA to MSY sits in the middle of the pack with a C. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 1,295 flights, with a median arrival 4 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate American on MIA to MSY from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
74.1%
Arrivals under 15 minutes late, of 1,276 completed flights
Avg delay
63 min
Across delayed arrivals only, not all flights
Cancelled
1.08%
National rate is 1.89%
Whole route
74.5%
Every carrier on MIA to MSY, 1,480 flights
These figures cover 1,295 flights between September 2025 and August 2026. Beyond the headline rate, 8.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
American against every carrier on MIA to MSY
American flew 1,295 of the 1,480 flights on MIA to MSY, most of the route. Its 74.1% on time is about level with the route as a whole at 74.5%. Ranked by on-time rate it is number three of five carriers on the route, where the range runs from Envoy at 86.7% to Frontier at 50.0%. Four of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Envoy Airthin sample | 105 | 86.7% | 54 min | 0.00% | A+ |
| Republic Airwaysthin sample | 9 | 77.8% | 80 min | 0.00% | B+ |
| American Airlines (this page) | 1,295 | 74.1% | 63 min | 1.08% | C |
| Spirit Airlinesthin sample | 67 | 62.5% | 78 min | 4.48% | D− |
| Frontier Airlinesthin sample | 4 | 50.0% | 21 min | 0.00% | F+ |
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When American runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 31 points, against half a point between the best and worst carrier.
- 5am–8am71 flights94.3%
- 8am–11am249 flights90.6%
- 11am–2pm—
- 2pm–5pm198 flights74.5%
- 5pm–8pm257 flights63.2%
- 8pm–5am520 flights68.8%
Scale runs 55% to 100%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 63.2% on time, against 94.3% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 8pm–5am window is the busiest, with 520 flights scheduled in it.
Across the year
American on MIA to MSY through the year
July is the worst month at 63.6% on time, 17 points below February, the best at 80.5%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. January was the busiest month here, with 133 flights.
Across the week, Wednesday is the strongest day at 82.8% on time and Sunday the weakest at 66.5%, a spread of 16 points.
Arrival by arrival
How late American on MIA to MSY runs when it is late
The 330 late arrivals split 115 under half an hour, 109 between 30 and 60 minutes, and 106 an hour or more.
- 15+ min early303 flights23.7%
- Within 15 min643 flights50.4%
- 15–29 min late115 flights9.0%
- 30–59 min late109 flights8.5%
- 1–2 hours late65 flights5.1%
- 2+ hours late41 flights3.2%
Scale runs 0% to 100%.
Share of 1,276 completed flights by arrival against schedule.
56 of 327 late departures made up the time and arrived on time, 17% of them. 59 flights left on time and still arrived late.
The worst days
Worst days for American on MIA to MSY
The latest arrival of the period was on 16 August 2026, 8 hours 45 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 16 August 2026 | 8 hours 45 minutes | Carrier |
| 28 January 2026 | 8 hours 10 minutes | Carrier |
| 29 December 2025 | 7 hours 44 minutes | Carrier |
| 4 August 2026 | 5 hours 32 minutes | Carrier |
| 11 March 2026 | 4 hours 38 minutes | Carrier |
Delay causes
Why American runs late on this route
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 21,000 reported delay minutes.
- 41%Late-arriving aircraft
- 39%Carrier
- 15%National Airspace System
- 6%Extreme weather
41% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 21,000 reported delay minutes here, that single category outweighs weather by 7 to one. The split is drawn from 20,751 reported delay minutes.
The largest share of delay minutes, 39%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 8,041 of the 21,000 delay minutes reported here.
Cancellations sit at 1.08% against a national 1.89%, which is ordinary. Diversions add another 0.39%.
Connections and stage length
What a delay here costs
8.3% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
The 674 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The return leg is a different operation and performs like one: it runs 80.6% on time across 1,293 flights, 7 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 7 points of difference.
The sample behind these figures is 1,295 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
What to do with this
Booking American on MIA to MSY
Put together: the calendar is the biggest lever here, not the carrier or the hour. February runs 80.5% on time and July 63.6%, a swing of 17 points. If the dates move at all, move them out of July before you think about anything else. 1,276 completed flights over 12 months sit behind that.
Related
Where to go next
- MIA to MSY, every carrier
- American on MSY to MIA, the return leg
- Envoy Air on MIA to MSY86.7%
- American Airlines network-wide record
- Miami International (MIA) delay statistics
- Louis Armstrong New Orleans International (MSY) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.05 million flight records
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.