SBP to DEN flight delays & on-time performance
Nonstop flights from San Luis County Regional Airport to Denver International Airport · 931 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SBP or DEN right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from San Luis Obispo (SBP) to Denver (DEN) arrived on time 82% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.6% were cancelled, and 9% arrived an hour or more late.
- United Airlines was the most punctual airline here (84% on time); SkyWest Airlines was the least (79%).
- Departures scheduled around 5am did best (87% on time); around 12pm did worst (77%).
- Tuesday was the most reliable day to fly (88% on time) and Sunday the least (78%).
- The largest source of delay minutes was late-arriving aircraft (44%).
Which airline is most on time from SBP to DEN?
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 |
|---|---|---|---|---|---|
| United Airlines | 84% | 0.9% | 24 min | 7.8% | 434 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 79% | 0.0% | 21 min | 11.1% | 290 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am87%362 flights
- 12pm77%285 flights
- 1pm78%76 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday79%0.0% cancelled
- Tuesday88%1.0% cancelled
- Wednesday84%0.0% cancelled
- Thursday85%2.9% cancelled
- Friday79%0.0% cancelled
- Saturday81%0.0% cancelled
- Sunday78%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 aircraft44%
- Airline (crew, maintenance, cleaning, fueling)33%
- Air traffic control & airport congestion16%
- Extreme weather7%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)50%
- Extreme weather25%
- Air traffic control & airport congestion25%
- Security0%
SBP to DEN: common questions
- How often are SBP to DEN flights on time?
- 82% 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 San Luis Obispo to Denver cancelled?
- 0.6% of scheduled flights were cancelled (4 of 724).
- How long are typical delays?
- Across all flights the average arrival delay was 22 min (early arrivals count as zero). Flights that were late arrived 118 min behind schedule on average, and 9.1% of flights were an hour or more late.
- How long is taxi time at SBP?
- Flights on this route spent 16 min taxiing from the gate to takeoff on average.
Related routes
Return trip: DEN to SBP — 79% on time
More flights from San Luis Obispo
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SBP → DEN, nonstop flights by US airlines that report to the DOT. How we calculate this.