Carrier route record
F9SNA→SLC
Frontier Airlines · Santa Ana to Salt Lake City
- Flights
- 101
- Period
- September 2025 to August 2026
- Share of route
- 5%
- Carriers
- 4
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Frontier Airlines.
Frontier on SNA to SLC earns an A+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 9 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 101 flights, with a median arrival 12 minutes early.
Set against the rest of the country, Frontier's SNA to SLC record is 9 points better than the US average of 77.3%. That gap is worth roughly 87 fewer late arrivals for every thousand flights.
Key figures
On time
86.0%
Arrivals under 15 minutes late, of 100 completed flights
Avg delay
58 min
Across delayed arrivals only, not all flights
Cancelled
0.99%
National rate is 1.89%
Whole route
86.3%
Every carrier on SNA to SLC, 1,859 flights
These figures cover 101 flights between September 2025 and August 2026. The median arrival is 12 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
Frontier against every carrier on SNA to SLC
Frontier flew 101 of the 1,859 flights on SNA to SLC, about 5% of it. Its 86.0% on time is about level with the route as a whole at 86.3%. Ranked by on-time rate it is number two 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 Airlines (this page)thin sample | 101 | 86.0% | 58 min | 0.99% | A+ |
| SkyWest Airlinesthin 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 Frontier 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 101 flights.
There are not enough flights in each departure window to split Frontier's SNA to SLC record by time of day without the percentages moving on noise. The headline rate of 86.0% is the reliable figure here.
Across the year
Frontier on SNA to SLC through the year
- Oct–Dec 202527 flights—
- Jan–Mar 202657 flights91.2%
- Apr–Jun 202617 flights—
Scale runs 85% 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 86.0% on time across 101 flights.
Split by quarter, Frontier on SNA to SLC logged 27 flights in Oct–Dec 2025, 57 flights in Jan–Mar 2026 and 17 flights in Apr–Jun 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 86.0% annual figure is the one to use.
Arrival by arrival
How late Frontier on SNA to SLC runs when it is late
Frontier on SNA to SLC often beats the schedule: 44 of 100 completed flights, 44%, arrived 15 minutes or more early. The 14 late arrivals split 6 under half an hour, 4 between 30 and 60 minutes, and 4 an hour or more.
- 15+ min early44 flights44.0%
- Within 15 min42 flights42.0%
- 15–29 min late6 flights6.0%
- 30–59 min late4 flights4.0%
- 1–2 hours late2 flights2.0%
- 2+ hours late2 flights2.0%
Scale runs 0% to 100%.
Share of 100 completed flights by arrival against schedule.
Only 14 of 100 completed flights left 15 minutes late or more, too few to say how often the time is made up.
The worst days
Worst days for Frontier on SNA to SLC
The latest arrival of the period was on 22 December 2025, 2 hours 52 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 |
|---|---|---|
| 22 December 2025 | 2 hours 52 minutes | Late-arriving aircraft |
| 26 October 2025 | 2 hours 44 minutes | Carrier |
| 25 January 2026 | 1 hour 52 minutes | Late-arriving aircraft |
| 3 May 2026 | 1 hour | Late-arriving aircraft |
| 29 December 2025 | 57 minutes | Carrier |
Delay causes
Why Frontier runs late on this route
Late-arriving aircraft accounts for 62% of the 816 delay minutes carriers reported here, and the remaining four split what is left.
- 62%Late-arriving aircraft
- 29%Carrier
- 7%National Airspace System
- 2%Extreme weather
62% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 816 reported delay minutes here, that single category outweighs weather by 27 to one. The split is drawn from 816 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 88.0% on time here.
Cancellations sit at 0.99% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
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 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 86.5% on time across 101 flights, within half a point 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. 101 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 Frontier on SNA to SLC
Put together: treat all of this as provisional. 101 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 86.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 100 completed flights over 12 months sit behind that.
Related
Where to go next
- SNA to SLC, every carrier
- Frontier on SLC to SNA, the return leg
- Delta Air Lines on SNA to SLC86.5%
- SkyWest Airlines on SNA to SLC84.7%
- Frontier Airlines network-wide record
- John Wayne Airport (SNA) delay statistics
- Salt Lake City International (SLC) delay statistics
- Why the first flight of the morning is statistically safest
- How to read this site: grades, sample sizes, and honest caveats
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.