Carrier route record
OOOKC→IAH
SkyWest Airlines · Oklahoma City to Houston
- Flights
- 1,091
- Period
- July 2025 to June 2026
- Share of route
- 78%
- Carriers
- 2
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on OKC to IAH earns an A. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 8 points better than the national rate of 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 1,091 flights, with a median arrival 8 minutes early.
Set against the rest of the country, SkyWest's OKC to IAH record is 8 points better than the US average of 77.6%. That gap is worth roughly 80 fewer late arrivals for every thousand flights.
Key figures
On time
85.6%
Arrivals under 15 minutes late, of 1,074 completed flights
Avg delay
77 min
Across delayed arrivals only, not all flights
Cancelled
1.01%
National rate is 1.81%
Whole route
84.3%
Every carrier on OKC to IAH, 1,399 flights
These figures cover 1,091 flights between July 2025 and June 2026. The median arrival is 8 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Carrier by carrier
SkyWest against every carrier on OKC to IAH
SkyWest flew 1,091 of the 1,399 flights on OKC to IAH, most of the route. Its 85.6% on time is about level with the route as a whole at 84.3%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from SkyWest at 85.6% to United at 80.0%. One 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 |
|---|---|---|---|---|---|
| SkyWest Airlines (this page) | 1,091 | 85.6% | 77 min | 1.01% | A |
| United Airlinesthin sample | 308 | 80.0% | 80 min | 0.97% | B+ |
Flight by flight
SkyWest flight numbers on OKC to IAH
Departure window
When SkyWest runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 15 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–8am506 flights88.3%
- 8am–11am62 flights83.9%
- 11am–2pm342 flights86.6%
- 2pm–5pm64 flights82.8%
- 5pm–8pm117 flights73.0%
- 8pm–5am—
Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 88.3% of the time, against 73.0% for the evening window. That is 15 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 506 flights scheduled in it.
Across the year
SkyWest on OKC to IAH through the year
August is the worst month at 79.8% on time, 15 points below September, the best at 95.1%. 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. July was the busiest month here, with 176 flights.
Across the week, Wednesday is the strongest day at 91.1% on time and Sunday the weakest at 81.8%. 9 points is a smaller lever than departure hour, but it is free.
Delay causes
Why SkyWest runs late on this route
One category carries most of the weight here. Carrier accounts for 47% of the 12,000 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.
- 47%Carrier
- 30%Late-arriving aircraft
- 14%National Airspace System
- 9%Extreme weather
The largest share of delay minutes, 47%, 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 5,610 of the 12,000 delay minutes reported here. The split is drawn from 11,871 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 88.3% on time here.
Cancellations sit at 1.01% against a national 1.81%, which is ordinary. Diversions add another 0.55%.
Connections and stage length
What a delay here costs
5.6% 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.
At 395 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 is a different operation and performs like one: it runs 78.6% on time across 1,092 flights, 7 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 7 points of difference.
One caution: this is a thin sample. 1,091 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 OKC to IAH
Put together: treat all of this as provisional. 1,091 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 85.6% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 1,074 completed flights over 12 months sit behind that.
Related
Where to go next
- OKC to IAH, every carrier
- SkyWest on IAH to OKC, the return leg
- United Airlines on OKC to IAH80.0%
- SkyWest Airlines network-wide record
- George Bush Intercontinental (IAH) delay statistics
- The best time of day to fly, according to 7.04 million flight records
- Worst months to fly in the US, ranked by the data
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.