Carrier route record
OOOKC→IAH
SkyWest Airlines · Oklahoma City to Houston
- Flights
- 889
- Period
- September 2025 to August 2026
- Share of route
- 73%
- Carriers
- 2
Historical statistics for September 2025 to August 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 10 points better than the national rate of 77.3%. When something does go wrong the average delay runs an hour and a half. That rests on 889 flights, with a median arrival 11 minutes early.
Set against the rest of the country, SkyWest's OKC to IAH record is 10 points better than the US average of 77.3%. That gap is worth roughly 95 fewer late arrivals for every thousand flights.
Key figures
On time
86.8%
Arrivals under 15 minutes late, of 879 completed flights
Avg delay
82 min
Across delayed arrivals only, not all flights
Cancelled
1.01%
National rate is 1.89%
Whole route
85.1%
Every carrier on OKC to IAH, 1,224 flights
These figures cover 889 flights between September 2025 and August 2026. The median arrival is 11 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.
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Carrier by carrier
SkyWest against every carrier on OKC to IAH
SkyWest flew 889 of the 1,224 flights on OKC to IAH, most of the route. Its 86.8% on time is 2 points better than the route as a whole, which runs 85.1%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from SkyWest at 86.8% to United at 80.7%. 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) | 889 | 86.8% | 82 min | 1.01% | A |
| United Airlinesthin sample | 335 | 80.7% | 68 min | 1.19% | B |
Flight by flight
SkyWest flight numbers on OKC to IAH
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
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 10 points, against half a point between the best and worst carrier.
- 5am–8am438 flights88.6%
- 8am–11am19 flights—
- 11am–2pm294 flights87.7%
- 2pm–5pm69 flights82.6%
- 5pm–8pm69 flights78.3%
- 8pm–5am—
Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 88.6% of the time, against 78.3% for the evening window. That is 10 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 438 flights scheduled in it.
Across the year
SkyWest on OKC to IAH through the year
September is the best month on the calendar at 95.1% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. March was the busiest month here, with 98 flights.
Across the week, Wednesday is the strongest day at 92.9% on time and Sunday the weakest at 83.1%, a spread of 10 points.
Arrival by arrival
How late SkyWest on OKC to IAH runs when it is late
SkyWest on OKC to IAH often beats the schedule: 338 of 879 completed flights, 38%, arrived 15 minutes or more early. The 116 late arrivals split 44 under half an hour, 26 between 30 and 60 minutes, and 46 an hour or more.
- 15+ min early338 flights38.5%
- Within 15 min425 flights48.4%
- 15–29 min late44 flights5.0%
- 30–59 min late26 flights3.0%
- 1–2 hours late19 flights2.2%
- 2+ hours late27 flights3.1%
Scale runs 0% to 100%.
Share of 879 completed flights by arrival against schedule.
17 of 96 late departures made up the time and arrived on time, 18% of them. 37 flights left on time and still arrived late.
The worst days
Worst days for SkyWest on OKC to IAH
The latest arrival of the period was on 8 March 2026, 7 hours 42 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in March 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 8 March 2026 | 7 hours 42 minutes | Carrier |
| 15 March 2026 | 7 hours 2 minutes | Late-arriving aircraft |
| 18 April 2026 | 6 hours 23 minutes | Late-arriving aircraft |
| 16 March 2026 | 5 hours 46 minutes | National Airspace System |
| 28 June 2026 | 5 hours 33 minutes | Late-arriving aircraft |
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 9,522 reported delay minutes.
- 39%Carrier
- 35%Late-arriving aircraft
- 14%National Airspace System
- 11%Extreme weather
- 1%Security
35% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 9,522 reported delay minutes here, that single category outweighs weather by 3 to one. The split is drawn from 9,522 reported delay minutes.
The largest share of delay minutes, 39%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,721 of the 9,522 delay minutes reported here.
Cancellations sit at 1.01% against a national 1.89%, which is ordinary. Diversions add another 0.11%.
Connections and stage length
What a delay here costs
5.2% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last an hour and a half, 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 80.0% on time across 890 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. 889 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. 889 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 86.8% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 879 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 IAH80.7%
- SkyWest Airlines network-wide record
- George Bush Intercontinental (IAH) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.05 million flight records
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.