Carrier route record

AACHS→DFW

American Airlines · Charleston to Dallas-Fort Worth

Flights: 946
Period: July 2025 to June 2026
Share of route: 76%
Carriers: 4

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

American on CHS to DFW lands a B, level with the national rate of 77.6%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That is a workable record, not a spotless one. That rests on 946 flights, with a median arrival 8 minutes early.

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

On time

78.0%

Arrivals under 15 minutes late, of 914 completed flights

Avg delay

97 min

Across delayed arrivals only, not all flights

Cancelled

2.75%

National rate is 1.81%

Whole route

80.5%

Every carrier on CHS to DFW, 1,250 flights

These figures cover 946 flights between July 2025 and June 2026. Beyond the headline rate, 9.8% 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 CHS to DFW

American flew 946 of the 1,250 flights on CHS to DFW, most of the route. Its 78.0% on time is 3 points worse than the route as a whole, which runs 80.5%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from Envoy at 94.0% to Frontier at 77.8%. Three 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 CHS to DFW
Airline	Flights	On time	Avg delay	Cancelled	Grade
Envoy Airthin sample	172	94.0%	94 min	1.74%	A
PSA Airlinesthin sample	114	81.1%	104 min	1.75%	B
American Airlines (this page)	946	78.0%	97 min	2.75%	B
Frontier Airlinesthin sample	18	77.8%	82 min	0.00%	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 33 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–8am363 flights90.9%
8am–11am6 flights—
11am–2pm35 flights82.9%
2pm–5pm324 flights76.5%
5pm–8pm218 flights57.6%
8pm–5am—

Scale runs 50% to 95%. Rows with fewer than 30 flights show a dash.

The 5pm–8pm window is where this operation falls apart: 57.6% on time, against 90.9% 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 5am–8am window is the busiest, with 363 flights scheduled in it.

Across the year

American on CHS to DFW through the year

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

July is the worst month at 70.7% on time, 14 points below December, the best at 84.6%. 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. May was the busiest month here, with 96 flights.

Across the week, Tuesday is the strongest day at 81.7% on time and Saturday the weakest at 72.9%. 9 points is a smaller lever than departure hour, but it is free.

Delay causes

Why American runs late on this route

One category carries most of the weight here. Late-arriving aircraft accounts for 42% of the 20,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Late-arriving aircraft
42%
Carrier
39%
National Airspace System
18%
Extreme weather
1%
Security
0%

42% 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 20,000 reported delay minutes here, that single category outweighs weather by 39 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 19,509 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 7,599 of the 20,000 delay minutes reported here.

Cancellations run at 2.75%, against 1.81% nationally. That is roughly one flight in 40 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

Connections and stage length

What a delay here costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 9.8% 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.

The 987 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 is a different operation and performs like one: it runs 66.4% on time across 945 flights, 12 points below 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 12 points of difference.

One caution: this is a thin sample. 946 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

What to do with this

Booking American on CHS to DFW

Put together: treat all of this as provisional. 946 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 78.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 914 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