DEN to SBP flight delays & on-time performance
Nonstop flights from Denver International Airport to San Luis County Regional Airport · 931 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at DEN or SBP right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Denver (DEN) to San Luis Obispo (SBP) arrived on time 79% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.4% were cancelled, and 7% arrived an hour or more late.
- SkyWest Airlines was the most punctual airline here (79% on time); United Airlines was the least (79%).
- Departures scheduled around 3pm did best (84% on time); around 7pm did worst (78%).
- Tuesday was the most reliable day to fly (84% on time) and Sunday the least (70%).
- The largest source of delay minutes was late-arriving aircraft (31%).
Which airline is most on time from DEN to SBP?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 79% | 0.0% | 12 min | 5.2% | 290 |
| United Airlines | 79% | 0.7% | 22 min | 8.3% | 434 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 11am79%362 flights
- 3pm84%25 flights
- 6pm70%10 flights
- 7pm78%327 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday81%1.0% cancelled
- Tuesday84%0.0% cancelled
- Wednesday79%1.9% cancelled
- Thursday76%0.0% cancelled
- Friday79%0.0% cancelled
- Saturday81%0.0% cancelled
- Sunday70%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft31%
- Airline (crew, maintenance, cleaning, fueling)30%
- Air traffic control & airport congestion21%
- Extreme weather18%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)33%
- Extreme weather33%
- Air traffic control & airport congestion33%
- Security0%
DEN to SBP: common questions
- How often are DEN to SBP flights on time?
- 79% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Denver to San Luis Obispo cancelled?
- 0.4% of scheduled flights were cancelled (3 of 724).
- How long are typical delays?
- Across all flights the average arrival delay was 18 min (early arrivals count as zero). Flights that were late arrived 79 min behind schedule on average, and 7.0% of flights were an hour or more late.
- How long is taxi time at DEN?
- Flights on this route spent 23 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SBP to DEN — 82% on time
More flights from Denver
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: DEN → SBP, nonstop flights by US airlines that report to the DOT. How we calculate this.