Carrier route record

OOIAH→CLT

SkyWest Airlines · Houston to Charlotte

Flights: 115
Period: July 2025 to June 2026
Share of route: 5%
Carriers: 4

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

SkyWest on IAH to CLT lands a B, 2 points worse than the national rate of 77.6%. About one flight in four arrives 15 minutes late or worse, and those flights are late by roughly 55 minutes on average. That is a workable record, not a spotless one. That rests on 115 flights. The strongest carrier on the route with a full sample, American Airlines, flew 1,622 at 82.4% on time.

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

On time

76.1%

Arrivals under 15 minutes late, of 113 completed flights

Avg delay

53 min

Across delayed arrivals only, not all flights

Cancelled

1.74%

National rate is 1.81%

Whole route

79.5%

Every carrier on IAH to CLT, 2,348 flights

These figures cover 115 flights between July 2025 and June 2026. Beyond the headline rate, 8.0% 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

SkyWest against every carrier on IAH to CLT

SkyWest flew 115 of the 2,348 flights on IAH to CLT, about 5% of it. Its 76.1% on time is 3 points worse than the route as a whole, which runs 79.5%. Ranked by on-time rate it is number two of four carriers on the route, where the range runs from American at 82.4% to Frontier at 67.5%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.

The choice of carrier is not cosmetic here. American Airlines arrives on time 82.4% of the time; United Airlines manages 74.7%. Sample sizes sit next to every figure, because a two-point gap across 394 flights means less than a ten-point one.

On-time performance by carrier on IAH to CLT
Airline	Flights	On time	Avg delay	Cancelled	Grade
American Airlines	1,622	82.4%	135 min	1.97%	B
SkyWest Airlines (this page)thin sample	115	76.1%	53 min	1.74%	B
United Airlines	394	74.7%	60 min	1.52%	C
Frontier Airlinesthin sample	217	67.5%	58 min	3.69%	C−

American leads United by 8 points. Real, but small enough that a better departure time on the weaker carrier can outweigh it.

Departure window

When SkyWest runs best on this route

Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 115 flights.

There are not enough flights in each departure window to split SkyWest's IAH to CLT record by time of day without the percentages moving on noise. The headline rate of 76.1% is the reliable figure here.

Across the year

SkyWest on IAH to CLT through the year

Jul–Sep 20257 flights—
Jan–Mar 202668 flights83.3%
Apr–Jun 202640 flights72.5%

Scale runs 65% to 90%. Rows with fewer than 30 flights show a dash.

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 76.1% on time across 115 flights.

Split by quarter, SkyWest on IAH to CLT logged 7 flights in Jul–Sep 2025, 68 flights in Jan–Mar 2026 and 40 flights in Apr–Jun 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 76.1% annual figure is the one to use.

Delay causes

Why SkyWest 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 1,434 reported delay minutes.

Carrier
39%
Late-arriving aircraft
31%
Extreme weather
16%
National Airspace System
13%

Extreme weather accounts for 16% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.6 times the usual weather exposure. The split is drawn from 1,434 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 564 of the 1,434 delay minutes reported here.

Cancellations sit at 1.74% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and stage length

What a delay here costs

8.0% 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 roughly 55 minutes, which a normal layover absorbs.

The 912 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 74.3% on time across 115 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.

One caution: this is a thin sample. 115 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 SkyWest on IAH to CLT

Put together: treat all of this as provisional. 115 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 76.1% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 113 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