Carrier route record
OOSBP→DEN
SkyWest Airlines · San Luis Obispo to Denver
- Flights
- 259
- Period
- September 2025 to August 2026
- Share of route
- 36%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on SBP to DEN 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 close to two hours on average. That rests on 259 flights, with a median arrival 8 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate SkyWest on SBP to DEN from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
80.2%
Arrivals under 15 minutes late, of 258 completed flights
Avg delay
104 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
Whole route
82.2%
Every carrier on SBP to DEN, 724 flights
These figures cover 259 flights between September 2025 and August 2026. Beyond the headline rate, 11.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
SkyWest against every carrier on SBP to DEN
SkyWest flew 259 of the 724 flights on SBP to DEN, about 36% of it. Its 80.2% on time is 2 points worse than the route as a whole, which runs 82.2%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from United at 83.3% to SkyWest at 80.2%.
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 |
|---|---|---|---|---|---|
| United Airlines | 465 | 83.3% | 122 min | 0.65% | B+ |
| SkyWest Airlines (this page)thin sample | 259 | 80.2% | 104 min | 0.00% | B+ |
Flight by flight
SkyWest flight numbers on SBP to DEN
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 259 flights.
There are not enough flights in each departure window to split SkyWest's SBP to DEN record by time of day without the percentages moving on noise. The headline rate of 80.2% is the reliable figure here.
Across the year
SkyWest on SBP to DEN through the year
- Jul–Sep 202527 flights—
- Oct–Dec 202592 flights75.0%
- Jan–Mar 202690 flights85.6%
- Apr–Jun 202650 flights79.6%
Scale runs 65% to 90%. 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 80.2% on time across 259 flights.
SkyWest on SBP to DEN did not run the same all year. Its best quarter was Jan–Mar 2026 at 85.6% on time and its weakest Oct–Dec 2025 at 75.0%, a swing of 11 points on roughly 86 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.
Across the week, Tuesday is the strongest day at 91.9% on time and Thursday the weakest at 69.4%, a spread of 23 points.
Arrival by arrival
How late SkyWest on SBP to DEN runs when it is late
SkyWest on SBP to DEN often beats the schedule: 88 of 258 completed flights, 34%, arrived 15 minutes or more early. When SkyWest on SBP to DEN is late it tends to be very late: 29 of its 51 late arrivals were an hour or more behind, and 18 were two hours or more.
- 15+ min early88 flights34.1%
- Within 15 min119 flights46.1%
- 15–29 min late13 flights5.0%
- 30–59 min late9 flights3.5%
- 1–2 hours late11 flights4.3%
- 2+ hours late18 flights7.0%
Scale runs 0% to 100%.
Share of 258 completed flights by arrival against schedule.
15 of 61 late departures made up the time and arrived on time, 25% of them. Only 5 left on time and still arrived late.
The worst days
Worst days for SkyWest on SBP to DEN
The latest arrival of the period was on 16 April 2026, 9 hours 48 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across April, November, January and October, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 16 April 2026 | 9 hours 48 minutes | Carrier |
| 16 November 2025 | 5 hours 20 minutes | Carrier |
| 15 January 2026 | 5 hours 5 minutes | Extreme weather |
| 20 October 2025 | 3 hours 52 minutes | Extreme weather |
| 10 October 2025 | 3 hours 36 minutes | Late-arriving aircraft |
Delay causes
Why SkyWest 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 5,311 reported delay minutes.
- 29%Late-arriving aircraft
- 27%Carrier
- 27%National Airspace System
- 17%Extreme weather
Extreme weather accounts for 17% 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 2.9 times the usual weather exposure. The split is drawn from 5,311 reported delay minutes.
Cancellations are rare at 0.00%, below the national 1.89% 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 stage length
What a delay here costs
11.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
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.
The return leg runs 77.6% on time across 259 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. 259 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 SBP to DEN
Put together: treat all of this as provisional. 259 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 80.2% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 258 completed flights over 12 months sit behind that.
Related
Where to go next
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.