Best Time to Fly SBP to DEN: On-Time Stats by Hour & Airline
San Luis Obispo County Regional → Denver International
Data through July 2026 · Last updated October 18, 2026
724 flights were scheduled from San Luis Obispo (SBP) to Denver (DEN) in the last 12 months, and 81.9% of those that flew arrived on time, 4.2 points above the US average of 77.6%.
United Airlines was the most punctual of the 2 airlines on the route at 83.5%, while SkyWest Airlines trailed at 79.4%.
April has been the best month (91% on time) and Friday the weakest day of the week (82%).
0.6% of flights were cancelled, versus 1.8% nationally.
SBP to DEN on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| United Airlines | 83.5% | 136 min | 0.9% | 434 |
| SkyWest Airlines | 79.4% | 97 min | 0.0% | 290 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SBP to DEN
On-time arrival % by scheduled departure hour (local time), 1,454 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 86.6% | 1.1% | 727 |
| 8am–9am | Limited data | 2 | |
| 10am–11am | Limited data | 1 | |
| 12pm–1pm | 80.5% | 0.0% | 581 |
| 1pm–2pm | 81.7% | 0.7% | 143 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SBP to DEN
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 26 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 74.6% | -10.4 pts | 1.7% | 60 |
| Summer peak (Jun 15 - Aug 15) | 79.8% | -5.2 pts | 0.8% | 248 |
| All other days | 85.0% | — | 0.5% | 1,120 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).