Carrier route record
OOSNA→SLC
SkyWest Airlines · Santa Ana to Salt Lake City
- Flights
- 151
- Period
- September 2025 to August 2026
- Share of route
- 8%
- Carriers
- 4
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on SNA to SLC earns a B+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 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 151 flights, with a median arrival 13 minutes early.
Set against the rest of the country, SkyWest's SNA to SLC record is 7 points better than the US average of 77.3%. That gap is worth roughly 74 fewer late arrivals for every thousand flights.
Key figures
On time
84.7%
Arrivals under 15 minutes late, of 150 completed flights
Avg delay
100 min
Across delayed arrivals only, not all flights
Cancelled
0.66%
National rate is 1.89%
Whole route
86.3%
Every carrier on SNA to SLC, 1,859 flights
These figures cover 151 flights between September 2025 and August 2026. The median arrival is 13 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 SNA to SLC
SkyWest flew 151 of the 1,859 flights on SNA to SLC, about 8% of it. Its 84.7% on time is 2 points worse than the route as a whole, which runs 86.3%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from Delta at 86.5% to Allegiant at 0.0%. 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 |
|---|---|---|---|---|---|
| Delta Air Lines | 1,606 | 86.5% | 99 min | 0.68% | A+ |
| Frontier Airlinesthin sample | 101 | 86.0% | 58 min | 0.99% | A+ |
| SkyWest Airlines (this page)thin sample | 151 | 84.7% | 100 min | 0.66% | B+ |
| Allegiant Airthin sample | 1 | 0.0% | 150 min | 0.00% | F+ |
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 151 flights.
There are not enough flights in each departure window to split SkyWest's SNA to SLC record by time of day without the percentages moving on noise. The headline rate of 84.7% is the reliable figure here.
Across the year
SkyWest on SNA to SLC through the year
- Oct–Dec 20251 flights—
- Jan–Mar 202650 flights91.8%
- Apr–Jun 202646 flights84.8%
- Jul–Sep 202654 flights77.8%
Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.
Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 84.7% on time across 151 flights.
SkyWest on SNA to SLC did not run the same all year. Its best quarter was Jan–Mar 2026 at 91.8% on time and its weakest Jul–Sep 2026 at 77.8%, a swing of 14 points on roughly 50 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
Arrival by arrival
How late SkyWest on SNA to SLC runs when it is late
SkyWest on SNA to SLC often beats the schedule: 70 of 150 completed flights, 47%, arrived 15 minutes or more early. The 23 late arrivals split 7 under half an hour, 7 between 30 and 60 minutes, and 9 an hour or more.
- 15+ min early70 flights46.7%
- Within 15 min57 flights38.0%
- 15–29 min late7 flights4.7%
- 30–59 min late7 flights4.7%
- 1–2 hours late6 flights4.0%
- 2+ hours late3 flights2.0%
Scale runs 0% to 100%.
Share of 150 completed flights by arrival against schedule.
6 of 28 late departures made up the time and arrived on time, 21% of them. Only 1 left on time and still arrived late.
The worst days
Worst days for SkyWest on SNA to SLC
The latest arrival of the period was on 29 May 2026, 16 hours 59 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 |
|---|---|---|
| 29 May 2026 | 16 hours 59 minutes | Carrier |
| 16 July 2026 | 2 hours 15 minutes | Extreme weather |
| 17 July 2026 | 2 hours 14 minutes | Carrier |
| 21 January 2026 | 1 hour 52 minutes | Carrier |
| 28 June 2026 | 1 hour 39 minutes | Carrier |
Delay causes
Why SkyWest runs late on this route
Carrier accounts for 83% of the 2,302 delay minutes carriers reported here, and the remaining four split what is left.
- 83%Carrier
- 16%Extreme weather
- 1%National Airspace System
Extreme weather accounts for 16% 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 2.6 times the usual weather exposure. The split is drawn from 2,302 reported delay minutes.
The largest share of delay minutes, 83%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,909 of the 2,302 delay minutes reported here.
Cancellations are rare at 0.66%, 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
6.0% 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 close to two hours, which a normal layover absorbs.
The 588 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 82.0% on time across 151 flights, within 3 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. 151 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 SNA to SLC
Put together: treat all of this as provisional. 151 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 84.7% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 150 completed flights over 12 months sit behind that.
Related
Where to go next
- SNA to SLC, every carrier
- SkyWest on SLC to SNA, the return leg
- Delta Air Lines on SNA to SLC86.5%
- Frontier Airlines on SNA to SLC86.0%
- SkyWest Airlines network-wide record
- John Wayne Airport (SNA) delay statistics
- Salt Lake City International (SLC) delay statistics
- How to read this site: grades, sample sizes, and honest caveats
- Late aircraft, weather, or the airline: what actually causes US flight delays
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.