Carrier route record
AASBP→PHX
American Airlines · San Luis Obispo to Phoenix
- Flights
- 531
- Period
- September 2025 to August 2026
- Share of route
- 43%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with American Airlines.
American on SBP to PHX lands a B, 3 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about 2.5 hours on average. That rests on 531 flights, with a median arrival 4 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate American on SBP to PHX from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
80.0%
Arrivals under 15 minutes late, of 525 completed flights
Avg delay
152 min
Across delayed arrivals only, not all flights
Cancelled
1.13%
National rate is 1.89%
Whole route
81.7%
Every carrier on SBP to PHX, 1,240 flights
These figures cover 531 flights between September 2025 and August 2026. Beyond the headline rate, 8.8% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
American against every carrier on SBP to PHX
American flew 531 of the 1,240 flights on SBP to PHX, about 43% of it. Its 80.0% on time is 2 points worse than the route as a whole, which runs 81.7%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Envoy at 88.7% to SkyWest at 78.1%. One 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 |
|---|---|---|---|---|---|
| Envoy Airthin sample | 330 | 88.7% | 53 min | 0.91% | A+ |
| American Airlines (this page) | 531 | 80.0% | 152 min | 1.13% | B |
| SkyWest Airlines | 379 | 78.1% | 120 min | 0.79% | B+ |
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 American 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 531 flights.
- 5am–8am199 flights81.5%
- 8am–11am8 flights—
- 11am–2pm259 flights79.2%
- 2pm–5pm47 flights80.0%
- 5pm–8pm18 flights—
- 8pm–5am—
Scale runs 70% to 85%. Rows with fewer than 30 flights show a dash.
The 5am–8am window is the strongest at 81.5% on time. The full set of windows spans 2 points.
Across the year
American on SBP to PHX through the year
Delays peak in October, when the on-time rate falls to 69.4%. December is the strongest month at 95.0%. Moving a flexible trip across that boundary buys 26 points. November was the busiest month here, with 75 flights.
Across the week, Tuesday is the strongest day at 84.9% on time and Saturday the weakest at 75.9%, a spread of 9 points.
Arrival by arrival
How late American on SBP to PHX runs when it is late
The 105 late arrivals split 41 under half an hour, 18 between 30 and 60 minutes, and 46 an hour or more.
- 15+ min early102 flights19.4%
- Within 15 min318 flights60.6%
- 15–29 min late41 flights7.8%
- 30–59 min late18 flights3.4%
- 1–2 hours late19 flights3.6%
- 2+ hours late27 flights5.1%
Scale runs 0% to 100%.
Share of 525 completed flights by arrival against schedule.
12 of 99 late departures made up the time and arrived on time, 12% of them. 18 flights left on time and still arrived late.
The worst days
Worst days for American on SBP to PHX
The latest arrival of the period was on 26 May 2026, 48 hours 52 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 26 May 2026 | 48 hours 52 minutes | Carrier |
| 20 July 2026 | 31 hours 6 minutes | Carrier |
| 26 September 2025 | 18 hours 9 minutes | Extreme weather |
| 3 September 2025 | 11 hours 14 minutes | Carrier |
| 17 March 2026 | 10 hours 28 minutes | Late-arriving aircraft |
Delay causes
Why American runs late on this route
Carrier accounts for 60% of the 16,000 delay minutes carriers reported here, and the remaining four split what is left.
- 60%Carrier
- 25%Late-arriving aircraft
- 7%Extreme weather
- 6%National Airspace System
- 2%Security
The largest share of delay minutes, 60%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 9,633 of the 16,000 delay minutes reported here. The split is drawn from 15,952 reported delay minutes.
Cancellations sit at 1.13% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here costs
8.8% 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 about 2.5 hours, which a normal layover absorbs.
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 is a different operation and performs like one: it runs 83.6% on time across 530 flights, 4 points above 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. 531 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 American on SBP to PHX
Put together: treat all of this as provisional. 531 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 80.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 525 completed flights over 12 months sit behind that.
Related
Where to go next
- SBP to PHX, every carrier
- American on PHX to SBP, the return leg
- Envoy Air on SBP to PHX88.7%
- SkyWest Airlines on SBP to PHX78.1%
- American Airlines network-wide record
- Phoenix Sky Harbor International (PHX) delay statistics
- Worst months to fly in the US, ranked by the data
- Connecting flights: how much buffer the data says you need
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.