Carrier route record

AAMIA→CLT

American Airlines · Miami to Charlotte

Flights: 3,249
Period: July 2025 to June 2026
Share of route: 87%
Carriers: 3

Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with American Airlines.

American on MIA to CLT lands a B, level with the national rate of 77.6%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 3,249 flights, with a median arrival 7 minutes early.

The US average over the same twelve months is 77.6%, so there is little to separate American on MIA to CLT from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

On time

77.6%

Arrivals under 15 minutes late, of 3,198 completed flights

Avg delay

73 min

Across delayed arrivals only, not all flights

Cancelled

1.45%

National rate is 1.81%

Whole route

78.1%

Every carrier on MIA to CLT, 3,726 flights

These figures cover 3,249 flights between July 2025 and June 2026. Beyond the headline rate, 8.4% 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

American against every carrier on MIA to CLT

American flew 3,249 of the 3,726 flights on MIA to CLT, most of the route. Its 77.6% on time is about level with the route as a whole at 78.1%. Ranked by on-time rate it is last of three carriers on the route, where the range runs from Frontier at 85.5% to American at 77.6%. Two 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.

On-time performance by carrier on MIA to CLT
Airline	Flights	On time	Avg delay	Cancelled	Grade
Frontier Airlinesthin sample	213	85.5%	94 min	2.82%	A
Spirit Airlinesthin sample	264	79.1%	77 min	3.79%	B−
American Airlines (this page)	3,249	77.6%	73 min	1.45%	B

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 23 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

5am–8am622 flights91.9%
8am–11am381 flights87.0%
11am–2pm496 flights76.5%
2pm–5pm497 flights73.1%
5pm–8pm697 flights69.1%
8pm–5am556 flights70.4%

Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.

Book the early departure. Flights leaving between 5am–8am arrive on time 91.9% of the time, against 69.1% for the evening window. That is 23 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 697 flights scheduled in it.

Across the year

American on MIA to CLT through the year

Darker means more delays. Figures are on-time percentages.October best, July worst

July is the worst month at 62.2% on time, 24 points below October, the best at 85.7%. 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. December was the busiest month here, with 298 flights.

Across the week, Wednesday is the strongest day at 83.2% on time and Sunday the weakest at 69.0%. 14 points is a smaller lever than departure hour, but it is free.

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 52,000 reported delay minutes.

Late-arriving aircraft
41%
Carrier
39%
National Airspace System
15%
Extreme weather
5%
Security
0%

41% 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 52,000 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 52,013 reported delay minutes.

The largest share of delay minutes, 39%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 20,000 of the 52,000 delay minutes reported here.

Cancellations sit at 1.45% against a national 1.81%, which is ordinary. Diversions add another 0.12%.

Connections and stage length

What a delay here costs

8.4% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.

The 650 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

The return leg runs 76.5% on time across 3,244 flights, within about a point 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 3,249 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 CLT

Put together: the calendar is the biggest lever here, not the carrier or the hour. October runs 85.7% on time and July 62.2%, a swing of 24 points. If the dates move at all, move them out of July before you think about anything else. 3,198 completed flights over 12 months sit behind that.

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures