Carrier route record
OOSAT→LAX
SkyWest Airlines · San Antonio to Los Angeles
- Flights
- 697
- Period
- September 2025 to August 2026
- Share of route
- 38%
- Carriers
- 4
Historical statistics for September 2025 to August 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 77.3%. When something does go wrong the average delay runs close to two hours. That rests on 697 flights, with a median arrival 10 minutes early.
Set against the rest of the country, SkyWest's SAT to LAX record is 13 points better than the US average of 77.3%. That gap is worth roughly 130 fewer late arrivals for every thousand flights.
Key figures
On time
90.3%
Arrivals under 15 minutes late, of 694 completed flights
Avg delay
122 min
Across delayed arrivals only, not all flights
Cancelled
0.29%
National rate is 1.89%
Whole route
85.9%
Every carrier on SAT to LAX, 1,814 flights
These figures cover 697 flights between September 2025 and August 2026. The median arrival is 10 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 SAT to LAX
SkyWest flew 697 of the 1,814 flights on SAT to LAX, about 38% of it. Its 90.3% on time is 4 points better than the route as a whole, which runs 85.9%. 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 72.1%. 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% | 122 min | 0.29% | A+ |
| Delta Air Lines | 679 | 88.8% | 107 min | 0.29% | A+ |
| Spirit Airlinesthin sample | 101 | 82.5% | 77 min | 3.96% | B− |
| Southwest Airlinesthin sample | 337 | 72.1% | 49 min | 0.00% | C+ |
Flight by flight
SkyWest flight numbers on SAT to LAX
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 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 flights91.7%
- 8am–11am44 flights93.2%
- 11am–2pm—
- 2pm–5pm338 flights88.8%
- 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 88.8% 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
Delays peak in September, when the on-time rate falls to 87.5%. March is the strongest month at 94.7%. Moving a flexible trip across that boundary buys 7 points. May was the busiest month here, with 62 flights.
Across the week, Tuesday is the strongest day at 94.6% on time and Friday the weakest at 85.4%, a spread of 9 points.
Arrival by arrival
How late SkyWest on SAT to LAX runs when it is late
SkyWest on SAT to LAX often beats the schedule: 277 of 694 completed flights, 40%, arrived 15 minutes or more early. The 67 late arrivals split 30 under half an hour, 9 between 30 and 60 minutes, and 28 an hour or more.
- 15+ min early277 flights39.9%
- Within 15 min350 flights50.4%
- 15–29 min late30 flights4.3%
- 30–59 min late9 flights1.3%
- 1–2 hours late12 flights1.7%
- 2+ hours late16 flights2.3%
Scale runs 0% to 100%.
Share of 694 completed flights by arrival against schedule.
A late pushback is often recovered here: of 76 departures that left 15 minutes late or more, 26 still arrived on time. 17 flights left on time and still arrived late.
The worst days
Worst days for SkyWest on SAT to LAX
The latest arrival of the period was on 20 April 2026, 25 hours 36 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 20 April 2026 | 25 hours 36 minutes | Carrier |
| 11 May 2026 | 13 hours 58 minutes | Carrier |
| 4 June 2026 | 12 hours 58 minutes | Carrier |
| 6 May 2026 | 6 hours 40 minutes | Late-arriving aircraft |
| 19 January 2026 | 6 hours 26 minutes | Carrier |
Delay causes
Why SkyWest runs late on this route
Carrier accounts for 76% of the 8,198 delay minutes carriers reported here, and the remaining four split what is left.
- 76%Carrier
- 14%Late-arriving aircraft
- 6%Extreme weather
- 4%National Airspace System
The largest share of delay minutes, 76%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 6,263 of the 8,198 delay minutes reported here. The split is drawn from 8,198 reported delay minutes.
Cancellations are rare at 0.29%, 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
Badly late arrivals are rare here: only 4.0% land an hour or more behind schedule, against 8.3% 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.
The return leg is a different operation and performs like one: it runs 85.9% 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. 694 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 LAX88.8%
- Spirit Airlines on SAT to LAX82.5%
- Southwest Airlines on SAT to LAX72.1%
- 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 day of the week to fly, and why it is the second lever
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.