Carrier route record
MQSBP→PHX
Envoy Air · San Luis Obispo to Phoenix
- Flights
- 330
- Period
- September 2025 to August 2026
- Share of route
- 27%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Envoy Air.
Envoy on SBP to PHX 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 11 points better than the national rate of 77.3%. When something does go wrong the average delay runs roughly 55 minutes. That rests on 330 flights. The strongest carrier on the route with a full sample, American Airlines, flew 531 at 80.0% on time.
Set against the rest of the country, Envoy's SBP to PHX record is 11 points better than the US average of 77.3%. That gap is worth roughly 114 fewer late arrivals for every thousand flights.
Key figures
On time
88.7%
Arrivals under 15 minutes late, of 327 completed flights
Avg delay
53 min
Across delayed arrivals only, not all flights
Cancelled
0.91%
National rate is 1.89%
Whole route
81.7%
Every carrier on SBP to PHX, 1,240 flights
These figures cover 330 flights between September 2025 and August 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.
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Carrier by carrier
Envoy against every carrier on SBP to PHX
Envoy flew 330 of the 1,240 flights on SBP to PHX, about 27% of it. Its 88.7% on time is 7 points better than the route as a whole, which runs 81.7%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from Envoy at 88.7% to SkyWest at 78.1%.
The two carriers here are closely matched: 2 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 |
|---|---|---|---|---|---|
| Envoy Air (this page)thin sample | 330 | 88.7% | 53 min | 0.91% | A+ |
| American Airlines | 531 | 80.0% | 152 min | 1.13% | B |
| SkyWest Airlines | 379 | 78.1% | 120 min | 0.79% | B+ |
No carrier stands out. American tops the table at 80.0%, 2 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 Envoy 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 330 flights.
- 5am–8am87 flights88.5%
- 8am–11am96 flights92.5%
- 11am–2pm52 flights86.5%
- 2pm–5pm79 flights83.5%
- 5pm–8pm16 flights—
- 8pm–5am—
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
Book the morning departure. Flights leaving between 8am–11am arrive on time 92.5% of the time, against 83.5% for the afternoon window. That is 9 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8am–11am window is the busiest, with 96 flights scheduled in it.
Across the year
Envoy on SBP to PHX through the year
- Oct–Dec 2025124 flights86.8%
- Jan–Mar 2026143 flights91.6%
- Apr–Jun 202614 flights—
- Jul–Sep 202649 flights83.7%
Scale runs 75% 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 88.7% on time across 330 flights.
Quarter by quarter Envoy on SBP to PHX held fairly steady: 86.8% in Oct–Dec 2025, 91.6% in Jan–Mar 2026 and 83.7% in Jul–Sep 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
Across the week, Tuesday is the strongest day at 95.7% on time and Sunday the weakest at 82.6%, a spread of 13 points.
Arrival by arrival
How late Envoy on SBP to PHX runs when it is late
Envoy on SBP to PHX often beats the schedule: 88 of 327 completed flights, 27%, arrived 15 minutes or more early. The 37 late arrivals split 14 under half an hour, 11 between 30 and 60 minutes, and 12 an hour or more.
- 15+ min early88 flights26.9%
- Within 15 min202 flights61.8%
- 15–29 min late14 flights4.3%
- 30–59 min late11 flights3.4%
- 1–2 hours late8 flights2.4%
- 2+ hours late4 flights1.2%
Scale runs 0% to 100%.
Share of 327 completed flights by arrival against schedule.
7 of 35 late departures made up the time and arrived on time, 20% of them. 9 flights left on time and still arrived late.
The worst days
Worst days for Envoy on SBP to PHX
The latest arrival of the period was on 13 December 2025, 3 hours behind schedule; most of its delay minutes were filed as extreme weather. On three of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 13 December 2025 | 3 hours | Extreme weather |
| 28 July 2026 | 2 hours 13 minutes | Late-arriving aircraft |
| 3 November 2025 | 2 hours 8 minutes | Extreme weather |
| 3 August 2026 | 2 hours 4 minutes | Late-arriving aircraft |
| 13 January 2026 | 1 hour 34 minutes | Late-arriving aircraft |
Delay causes
Why Envoy 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 1,949 reported delay minutes.
- 38%Late-arriving aircraft
- 24%National Airspace System
- 18%Carrier
- 18%Extreme weather
- 1%Security
Extreme weather accounts for 18% 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 3.0 times the usual weather exposure. The split is drawn from 1,949 reported delay minutes.
38% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 1,949 reported delay minutes here, that single category outweighs weather by 2 to one.
Cancellations sit at 0.91% 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 3.7% 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 509 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 90.2% on time across 331 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. 330 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 Envoy on SBP to PHX
Put together: treat all of this as provisional. 330 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 88.7% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 327 completed flights over 12 months sit behind that.
Related
Where to go next
- SBP to PHX, every carrier
- Envoy on PHX to SBP, the return leg
- American Airlines on SBP to PHX80.0%
- SkyWest Airlines on SBP to PHX78.1%
- Envoy Air network-wide record
- Phoenix Sky Harbor International (PHX) 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.