Denver (DEN) to San Luis Obispo (SBP): On-Time Performance
Data through May 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 50% in June 2024. 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
- 0.3%
- 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 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlinesmost reliable | 78% | 13 min | 0.0% | 737 |
| United Airlines | 72% | 24 min | 0.7% | 717 |
Monthly on-time trend
Best time to fly from DEN to SBP
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 76% | 17 min |
| Tuesday | 78% | 20 min |
| Wednesdaybest | 79% | 15 min |
| Thursday | 74% | 16 min |
| Friday | 71% | 20 min |
| Saturday | 77% | 17 min |
| Sunday | 70% | 22 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%
- Weather11%
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 2024-06 and 2026-05. 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 78%, based on 737 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?
- 0.3% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from DEN to SBP?
- June 2024 was the roughest month in this dataset, with only 50% of arrivals on time. The best was October 2024 at 92%. If your dates are flexible, that 42-point gap is worth planning around.
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Based on 1,454 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.