Carrier route record
OOSAT→LAX
SkyWest Airlines · San Antonio to Los Angeles
- Flights
- 697
- Period
- July 2025 to June 2026
- Share of route
- 37%
- Carriers
- 4
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on SAT to LAX earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 13 points better than the national rate of 77.6%. When something does go wrong the average delay runs close to two hours. That rests on 697 flights, with a median arrival 9 minutes early.
Set against the rest of the country, SkyWest's SAT to LAX record is 13 points better than the US average of 77.6%. That gap is worth roughly 127 fewer late arrivals for every thousand flights.
Key figures
On time
90.3%
Arrivals under 15 minutes late, of 693 completed flights
Avg delay
124 min
Across delayed arrivals only, not all flights
Cancelled
0.29%
National rate is 1.81%
Whole route
86.6%
Every carrier on SAT to LAX, 1,881 flights
These figures cover 697 flights between July 2025 and June 2026. The median arrival is 9 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 SAT to LAX
SkyWest flew 697 of the 1,881 flights on SAT to LAX, about 37% of it. Its 90.3% on time is 4 points better than the route as a whole, which runs 86.6%. Ranked by on-time rate it is first of four carriers on the route, where the range runs from SkyWest at 90.3% to Southwest at 73.2%. Two 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) | 697 | 90.3% | 124 min | 0.29% | A+ |
| Delta Air Lines | 684 | 89.4% | 107 min | 0.44% | A+ |
| Spirit Airlinesthin sample | 163 | 86.8% | 87 min | 2.45% | A |
| Southwest Airlinesthin sample | 337 | 73.2% | 48 min | 0.00% | C+ |
Flight by flight
SkyWest flight numbers on SAT to LAX
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 697 flights.
- 5am–8am315 flights92.6%
- 8am–11am44 flights93.2%
- 11am–2pm—
- 2pm–5pm338 flights87.8%
- 5pm–8pm—
- 8pm–5am—
Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.
The early departures do better, though not dramatically: 93.2% on time for the 8am–11am window against 87.8% for 2pm–5pm. Worth taking if the schedule allows, not worth an extra connection. The 2pm–5pm window is the busiest, with 338 flights scheduled in it.
Across the year
SkyWest on SAT to LAX through the year
July is the worst month at 87.1% on time, 8 points below March, the best at 94.7%. 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. May was the busiest month here, with 62 flights.
Across the week, Saturday is the strongest day at 94.6% on time and Friday the weakest at 84.5%. 10 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 75% of the 8,286 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.
- 75%Carrier
- 13%Late-arriving aircraft
- 7%Extreme weather
- 5%National Airspace System
The largest share of delay minutes, 75%, 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 6,183 of the 8,286 delay minutes reported here. The split is drawn from 8,286 reported delay minutes.
Cancellations are rare at 0.29%, below the national 1.81% 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
Badly late arrivals are rare here: only 4.0% land an hour or more behind schedule, against 8.1% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
The 1,211 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 is a different operation and performs like one: it runs 86.0% on time across 697 flights, 4 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 4 points of difference.
One caution: this is a thin sample. 697 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 SAT to LAX
Put together: treat all of this as provisional. 697 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 90.3% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 693 completed flights over 12 months sit behind that.
Related
Where to go next
- SAT to LAX, every carrier
- SkyWest on LAX to SAT, the return leg
- Delta Air Lines on SAT to LAX89.4%
- Spirit Airlines on SAT to LAX86.8%
- Southwest Airlines on SAT to LAX73.2%
- SkyWest Airlines network-wide record
- San Antonio International (SAT) delay statistics
- Los Angeles International (LAX) delay statistics
- How to read this site: grades, sample sizes, and honest caveats
- The best time of day to fly, according to 7.04 million flight records
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.