Carrier route record
OOLAX→IAH
SkyWest Airlines · Los Angeles to Houston
- Flights
- 408
- Period
- September 2025 to August 2026
- Share of route
- 8%
- Carriers
- 5
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on LAX to IAH lands a B+, 4 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 a little over an hour on average. That rests on 408 flights. The strongest carrier on the route with a full sample, United Airlines, flew 3,420 at 87.4% on time.
The US average over the same twelve months is 77.3%, so there is little to separate SkyWest on LAX to IAH from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
81.2%
Arrivals under 15 minutes late, of 405 completed flights
Avg delay
70 min
Across delayed arrivals only, not all flights
Cancelled
0.49%
National rate is 1.89%
Whole route
84.6%
Every carrier on LAX to IAH, 5,143 flights
These figures cover 408 flights between September 2025 and August 2026. The median arrival is 6 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.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Carrier by carrier
SkyWest against every carrier on LAX to IAH
SkyWest flew 408 of the 5,143 flights on LAX to IAH, about 8% of it. Its 81.2% on time is 3 points worse than the route as a whole, which runs 84.6%. Ranked by on-time rate it is number three of five carriers on the route, where the range runs from United at 87.4% to Frontier at 70.6%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.
The two carriers here are closely matched: 3 points separate the best from the worst. At that spread, schedule and price are better tie-breakers than reliability. Sample sizes are shown so you can see which rows are worth weighing.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| United Airlines | 3,420 | 87.4% | 52 min | 0.18% | A+ |
| Delta Air Lines | 648 | 84.8% | 70 min | 0.93% | B+ |
| SkyWest Airlines (this page) | 408 | 81.2% | 70 min | 0.49% | B+ |
| Spirit Airlinesthin sample | 331 | 73.0% | 73 min | 1.51% | C |
| Frontier Airlinesthin sample | 336 | 70.6% | 74 min | 1.49% | C |
No carrier stands out. United tops the table at 87.4%, 3 points clear of the bottom, which is inside the range this kind of sample moves year to year.
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 13 points, against 3 points between the best and worst carrier.
- 5am–8am—
- 8am–11am64 flights90.6%
- 11am–2pm196 flights80.9%
- 2pm–5pm147 flights77.4%
- 5pm–8pm1 flights—
- 8pm–5am—
Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.
Book the morning departure. Flights leaving between 8am–11am arrive on time 90.6% of the time, against 77.4% for the afternoon window. That is 13 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 11am–2pm window is the busiest, with 196 flights scheduled in it.
Across the year
SkyWest on LAX to IAH through the year
August is the worst month at 64.5% on time, 26 points below January, the best at 90.3%. 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. October was the busiest month here, with 56 flights.
Across the week, Tuesday is the strongest day at 87.0% on time and Wednesday the weakest at 70.9%, a spread of 16 points.
Arrival by arrival
How late SkyWest on LAX to IAH runs when it is late
SkyWest on LAX to IAH often beats the schedule: 113 of 405 completed flights, 28%, arrived 15 minutes or more early. The 76 late arrivals split 22 under half an hour, 23 between 30 and 60 minutes, and 31 an hour or more.
- 15+ min early113 flights27.9%
- Within 15 min216 flights53.3%
- 15–29 min late22 flights5.4%
- 30–59 min late23 flights5.7%
- 1–2 hours late19 flights4.7%
- 2+ hours late12 flights3.0%
Scale runs 0% to 100%.
Share of 405 completed flights by arrival against schedule.
20 of 82 late departures made up the time and arrived on time, 24% of them. 14 flights left on time and still arrived late.
The worst days
Worst days for SkyWest on LAX to IAH
The latest arrival of the period was on 29 November 2025, 5 hours 4 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). On three of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 29 November 2025 | 5 hours 4 minutes | Carrier |
| 3 January 2026 | 4 hours 28 minutes | Carrier |
| 22 September 2025 | 4 hours 2 minutes | Late-arriving aircraft |
| 6 May 2026 | 4 hours | Late-arriving aircraft |
| 24 December 2025 | 3 hours 50 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 5,281 reported delay minutes.
- 39%Late-arriving aircraft
- 29%National Airspace System
- 29%Carrier
- 3%Extreme weather
39% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 5,281 reported delay minutes here, that single category outweighs weather by 12 to one. The split is drawn from 5,281 reported delay minutes.
The practical consequence: the 8am–11am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 90.6% on time here.
Cancellations are rare at 0.49%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and stage length
What a delay here costs
7.7% 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 a little over an hour, which a normal layover absorbs.
The 1,379 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.
The return leg runs 79.3% on time across 408 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. 408 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 LAX to IAH
Put together: treat all of this as provisional. 408 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 81.2% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 405 completed flights over 12 months sit behind that.
Related
Where to go next
- LAX to IAH, every carrier
- SkyWest on IAH to LAX, the return leg
- United Airlines on LAX to IAH87.4%
- Delta Air Lines on LAX to IAH84.8%
- Spirit Airlines on LAX to IAH73.0%
- Frontier Airlines on LAX to IAH70.6%
- SkyWest Airlines network-wide record
- Los Angeles International (LAX) delay statistics
- 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.