Carrier route record
OOIAH→OKC
SkyWest Airlines · Houston to Oklahoma City
- Flights
- 890
- 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 IAH to OKC lands a B, 3 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That rests on 890 flights, with a median arrival 6 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate SkyWest on IAH to OKC from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
80.0%
Arrivals under 15 minutes late, of 878 completed flights
Avg delay
89 min
Across delayed arrivals only, not all flights
Cancelled
1.12%
National rate is 1.89%
Whole route
80.5%
Every carrier on IAH to OKC, 1,224 flights
These figures cover 890 flights between September 2025 and August 2026. Beyond the headline rate, 8.9% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
SkyWest against every carrier on IAH to OKC
SkyWest flew 890 of the 1,224 flights on IAH to OKC, most of the route. Its 80.0% on time is about level with the route as a whole at 80.5%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from United at 82.0% to SkyWest 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 |
|---|---|---|---|---|---|
| United Airlinesthin sample | 334 | 82.0% | 64 min | 1.50% | B |
| SkyWest Airlines (this page) | 890 | 80.0% | 89 min | 1.12% | B |
Flight by flight
SkyWest flight numbers on IAH to OKC
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 12 points, against half a point between the best and worst carrier.
- 5am–8am143 flights83.0%
- 8am–11am—
- 11am–2pm1 flights—
- 2pm–5pm170 flights86.9%
- 5pm–8pm307 flights75.2%
- 8pm–5am269 flights79.2%
Scale runs 65% to 90%. Rows with fewer than 30 flights show a dash.
The best window here is not the first bank but the 2pm–5pm slot at 86.9% on time, ahead of 5pm–8pm at 75.2%. Where the curve peaks mid-day rather than at dawn, the constraint is usually congestion at one end rather than the aircraft's own rotation. The 5pm–8pm window is the busiest, with 307 flights scheduled in it.
Across the year
SkyWest on IAH to OKC through the year
June is the worst month at 71.7% on time, 21 points below August, the best at 92.9%. 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. March was the busiest month here, with 97 flights.
Across the week, Thursday is the strongest day at 84.9% on time and Saturday the weakest at 70.0%, a spread of 15 points.
Arrival by arrival
How late SkyWest on IAH to OKC runs when it is late
The 176 late arrivals split 43 under half an hour, 55 between 30 and 60 minutes, and 78 an hour or more.
- 15+ min early208 flights23.7%
- Within 15 min494 flights56.3%
- 15–29 min late43 flights4.9%
- 30–59 min late55 flights6.3%
- 1–2 hours late50 flights5.7%
- 2+ hours late28 flights3.2%
Scale runs 0% to 100%.
Share of 878 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 165 departures that left 15 minutes late or more, only 19 made it up before arrival. 30 flights left on time and still arrived late.
The worst days
Worst days for SkyWest on IAH to OKC
The latest arrival of the period was on 21 December 2025, 15 hours 33 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 21 December 2025 | 15 hours 33 minutes | Late-arriving aircraft |
| 17 April 2026 | 14 hours 39 minutes | Late-arriving aircraft |
| 2 October 2025 | 13 hours 35 minutes | Carrier |
| 27 July 2026 | 12 hours 23 minutes | Extreme weather |
| 26 September 2025 | 10 hours 18 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 16,000 reported delay minutes.
- 41%Late-arriving aircraft
- 36%Carrier
- 15%Extreme weather
- 9%National Airspace System
Extreme weather accounts for 15% 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 2.5 times the usual weather exposure. The split is drawn from 15,670 reported delay minutes.
41% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 16,000 reported delay minutes here, that single category outweighs weather by 3 to one.
Cancellations sit at 1.12% against a national 1.89%, which is ordinary. Diversions add another 0.22%.
Connections and stage length
What a delay here costs
8.9% 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 2pm–5pm window matters as much as it does.
The return leg is a different operation and performs like one: it runs 86.8% on time across 889 flights, 7 points above 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. 890 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 OKC
Put together: treat all of this as provisional. 890 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 80.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 878 completed flights over 12 months sit behind that.
Related
Where to go next
- IAH to OKC, every carrier
- SkyWest on OKC to IAH, the return leg
- United Airlines on IAH to OKC82.0%
- 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.