Route reliability record
MIA→MCO
Miami to Orlando
- Flights
- 3,804
- Period
- July 2025 to June 2026
- Distance
- 192 mi
- Carriers
- 3
This route sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 6 points worse than the national rate of 77.6%. The late ones land a little over an hour behind schedule. That rests on 3,804 flights, of which Southwest Airlines flew 577 at 85.8% on time.
The national on-time rate over the same period is 77.6%, so this route runs 6 points behind the country as a whole. Across a thousand flights that is about 55 extra late arrivals.
Key figures
On time
72.1%
Arrivals under 15 minutes late, of 3,762 completed flights
Avg delay
72 min
Across delayed arrivals only, not all flights
Cancelled
1.00%
National rate is 1.81%
Best carrier
Southwest
85.8% on time across 577 flights
These figures cover 3,804 flights between July 2025 and June 2026. Beyond the headline rate, 11.3% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Carrier by carrier
Which airline is most reliable on MIA to MCO
The choice of carrier is not cosmetic here. Southwest Airlines arrives on time 85.8% of the time; American Airlines manages 69.2%. Sample sizes sit next to every figure, because a two-point gap across 2,993 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Southwest Airlines | 577 | 85.8% | 72 min | 0.87% | A+ |
| Republic Airwaysthin sample | 234 | 74.8% | 67 min | 0.00% | C+ |
| American Airlines | 2,993 | 69.2% | 73 min | 1.10% | C |
The spread between Southwest and American is 17 points, wide enough that it should decide the booking. On a hundred trips that is 17 more arrivals inside the on-time window.
Departure window
The best time of day to leave
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 34 points, against 17 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am657 flights94.8%
- 8am–11am461 flights86.3%
- 11am–2pm325 flights74.8%
- 2pm–5pm463 flights61.0%
- 5pm–8pm979 flights62.4%
- 8pm–5am919 flights63.5%
Scale runs 55% to 100%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 94.8% of the time, against 61.0% for the afternoon window. That is 34 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5pm–8pm window is the busiest, with 979 flights scheduled in it.
Across the year
When delays peak on this route
This route's year swings by 31 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.
July is the worst month at 51.8% on time, 31 points below November, the best at 82.5%. 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. August was the busiest month here, with 357 flights.
Across the week, Tuesday is the strongest day at 79.2% on time and Sunday the weakest at 60.8%. 18 points is a smaller lever than departure hour, but it is free.
Delay causes
Why this route gets delayed
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 76,000 reported delay minutes.
- 40%Late-arriving aircraft
- 30%Carrier
- 24%National Airspace System
- 5%Extreme weather
- 0%Security
40% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 76,000 reported delay minutes here, that single category outweighs weather by 8 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 75,727 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 94.8% on time here.
Cancellations sit at 1.00% against a national 1.81%, which is ordinary. Diversions add another 0.11%.
Connections and stage length
What a delay here actually costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 11.3% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
At 192 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 5am–8am window matters as much as it does.
The return leg runs 74.0% on time across 3,804 flights, within 2 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
The sample behind these figures is 3,804 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 this route
Put together: the calendar is the biggest lever here, not the carrier or the hour. November runs 82.5% on time and July 51.8%, a swing of 31 points. If the dates move at all, move them out of July before you think about anything else. 3,762 completed flights over 12 months sit behind that.
Common questions
MIA to MCO questions
How often is MIA to MCO delayed?
Roughly one flight in four arrive at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 27.9% of the 3,804 flights in this analysis, against 22.4% nationally. Delayed flights are late by a little over an hour on average.
Which airline is most reliable on MIA to MCO?
Southwest Airlines leads at 85.8% on time across 577 flights. American Airlines is at the other end on 69.2%, a gap of 17 points. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.
What time of day has the fewest delays on MIA to MCO?
The 5am–8am departure window is the strongest at 94.8% on time. The 2pm–5pm window is the weakest at 61.0%, 34 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are July delays on MIA to MCO?
July is the weakest month at 51.8% on time, compared with 82.5% in November. Across the year that is 31 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
- MCO to MIA — the return legseparate record
- Miami International (MIA) delay statistics
- Orlando International (MCO) delay statistics
- Southwest Airlines on-time record85.8%
- Republic Airways on-time record74.8%
- American Airlines on-time record69.2%
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.04 million flight records
Direction matters. MIA to MCO and MCO to MIA are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Updated monthly. How this data is collected.