Denver (DEN) to San Luis Obispo (SBP): On-Time Performance
Data through July 2026
When you fly DEN to SBP matters as much as anything else about the booking: the route swung from 92% on-time in October 2024 to just 55% in July 2025. Across the full period the route averages 75% on-time against a national 78%.
- On-time
- 75%
- arrived <15 min late
- Avg delay
- 18 min
- completed flights
- Cancelled
- 0.4%
- Flights/day
- 2.0
- last 12 months
- Duration
- 2h 50m
- scheduled
- Distance
- 931 mi
Best airline from DEN to SBP
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlinesmost reliable | 79% | 13 min | 0.0% | 707 |
| United Airlines | 73% | 23 min | 0.7% | 809 |
Monthly on-time trend
Best time to fly from DEN to SBP
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 18 min |
| Tuesdaybest | 79% | 19 min |
| Wednesday | 78% | 15 min |
| Thursday | 75% | 15 min |
| Friday | 72% | 19 min |
| Saturday | 78% | 16 min |
| Sunday | 69% | 25 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft43%
- Airline operations29%
- National airspace system18%
- Weather10%
Frequently asked questions
- How often are flights from DEN to SBP delayed?
- 25% of DEN–SBP flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 18 minutes.
- Which airline is most reliable from DEN to SBP?
- SkyWest Airlines has the best on-time record on this route at 79%, based on 707 flights. 2 airlines flew DEN–SBP frequently enough to compare in this period.
- How long is the flight from DEN to SBP?
- The scheduled DEN–SBP flight time averages 2h 50m over 931 miles. Actual arrival times vary — flights on this route land 15+ minutes late 25% of the time.
- How often are DEN to SBP flights cancelled?
- 0.4% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from DEN to SBP?
- July 2025 was the roughest month in this dataset, with only 55% of arrivals on time. The best was October 2024 at 92%. If your dates are flexible, that 37-point gap is worth planning around.
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Based on 1,516 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.