Flight number record
OO 4765
SkyWest Airlines · Denver to San Luis Obispo
- Route
- DEN → SBP
- Departs
- 11:30
- Flights
- 321
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s OO 4765, check with SkyWest Airlines. SkyWest Airlines flies under contract for larger airlines, so a ticket for this flight may show a different airline code and number.
OO 4765 lands a B+, level with the national rate of 77.6%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by roughly 50 minutes on average. That is a workable record, not a spotless one. That rests on 321 flights, with a median arrival 2 minutes early.
Key figures
On time
77.6%
Arrivals under 15 minutes late, of 321 completed flights
Avg delay
48 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.81%
1 hour+ late
5.9%
National rate is 8.1%
These figures cover 321 flights between July 2025 and June 2026. The median arrival is 2 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.
Schedule
When OO 4765 flies
OO 4765 flies DEN to SBP without a single fixed slot. Its most common scheduled departure was 11:30, used on 127 of 321 flights, with 11:28 (49 flights) and 11:25 (42 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 11:30127 flights39.6%
- Departs 11:2849 flights15.3%
- Departs 11:2542 flights13.1%
Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 11:30 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and OO 4765 runs level with that at 77.6%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
OO 4765 next to DEN to SBP
Every carrier on DEN to SBP combined arrived on time 76.8% of the time across 724 flights, so OO 4765 is about level with it. Across its whole network SkyWest Airlines managed 79.0%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 4765thin sample | 321 | 77.6% | 48 min | 0.00% | B+ |
| All SkyWest Airlines on DEN–SBPthin sample | 321 | 77.6% | 48 min | 0.00% | B+ |
| All carriers on DEN–SBP | 724 | 76.8% | 80 min | 0.28% | B+ |
| SkyWest Airlines, whole network | 852,935 | 79.0% | 88 min | 1.77% | B |
Across the year
OO 4765 quarter by quarter
OO 4765 did not run the same all year. Its best quarter was Apr–Jun 2026 at 88.0% on time and its weakest Oct–Dec 2025 at 73.9%, a swing of 14 points on roughly 80 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.
- Jul–Sep 202589 flights76.4%
- Oct–Dec 202592 flights73.9%
- Jan–Mar 202690 flights76.7%
- Apr–Jun 202650 flights88.0%
Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, OO 4765 did best on Tuesday at 84.8% on time and worst on Friday at 67.4%. Each day rests on about 46 flights, so a gap of 17 points is worth noticing but could still narrow in another year.
Delay causes
Why OO 4765 runs late
One category carries most of the weight here. Carrier accounts for 60% of the 3,460 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 60%Carrier
- 22%National Airspace System
- 14%Late-arriving aircraft
- 4%Extreme weather
The largest share of delay minutes, 60%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 2,059 of the 3,460 delay minutes reported here. The split is drawn from 3,460 delay minutes reported on OO 4765.
Cancellations are rare at 0.00%, below the national 1.81% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
5.9% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last roughly 50 minutes, which a normal layover absorbs.
The 931 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The same number turns up on four other city pairs in the data, including LAX to MSO (25), LAX to LAS (8) and DEN to BOI (6), but none flew often enough under OO 4765 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to SBP only.
One caution: this is a thin sample. 321 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 OO 4765
For a booking, read OO 4765 as 77.6% on time with 0.00% cancelled over 321 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- DEN to SBP, every carrier and departure
- SBP to DEN, the return direction
- United Airlines 1550 on the same route78.2%
- Denver International (DEN) delay statistics
- SkyWest Airlines on-time record
- Every SkyWest Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Worst months to fly in the US, ranked by the data
A flight number here means SkyWest Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.