Route on-time record
DEN to SBP: most on-time flights and the best time to fly
Denver (Denver International Airport) to San Luis Obispo (San Luis County Regional Airport). 724 nonstop flights in Jun 2025 to May 2026, 77% arrived within 15 minutes and 0.3% were cancelled. The most reliable flight number was United 1846 at 11:27 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
DEN → SBP
Denver to San Luis Obispo: 724 nonstop flights a year
On time (12 months)
77%
Cancelled
0.3%
avg delay 20 min
Best time to leave
9 AM to noon
78% on time vs 74% 6 to 9 PM
Most reliable airline
SkyWest
78% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · United 1846
11:27 AM → 1:09 PM2h 42m nonstop
Local times, typical schedule. Last flown 2026-05-31.
79%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 6 min
- Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (9 AM to noon: 78% on time; 6 to 9 PM: 74%).
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
Limited track record · 11 flights
Find United 1846 fares Opens this date on Aviasales#2 · SkyWest 4765 · sold as United Express, Delta Connection, American Eagle or Alaska
11:30 AM → 1:31 PM3h 01m nonstop
Local times, typical schedule. Last flown 2026-05-20.
78%
chance on time
- On time (history)
- 78%
- Cancelled
- 0.0%
- Avg arrival delay
- 12 min
- Arrived on time 78% of the time (351 flights, Jun 2025 to May 2026).
- Never cancelled in 351 scheduled flights.
- Leaves in this route's most on-time window (9 AM to noon: 78% on time; 6 to 9 PM: 74%).
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
Strong track record · 351 flights
Find 11:30 AM flight fares Opens this date on Aviasales#3 · United 470
7:05 PM → 8:50 PM2h 45m nonstop
Local times, typical schedule. Last flown 2026-05-31.
75%
chance on time
- On time (history)
- 82%
- Cancelled
- 0.0%
- Avg arrival delay
- 9 min
- Arrived on time 82% of the time (11 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (6 to 9 PM: 74% on time; 9 AM to noon: 78%).
- Departs inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.
Limited track record · 11 flights
Find United 470 fares Opens this date on Aviasales#4 · United 1550
7:45 PM → 9:35 PM2h 51m nonstop
Local times, typical schedule. Last flown 2026-05-20.
74%
chance on time
- On time (history)
- 75%
- Cancelled
- 0.6%
- Avg arrival delay
- 28 min
- Arrived on time 75% of the time (342 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (6 to 9 PM: 74% on time; 9 AM to noon: 78%).
- Departs inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.
Strong track record · 342 flights
Find United 1550 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)78%
351 flights · 78% on time as flown · 0.1% cancel
- United Airlines75%
373 flights · 75% on time as flown · 0.5% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- 9 AM to noon78%
362 flights · avg delay 12 min
- 6 to 9 PM74%
337 flights · avg delay 29 min
Best day: Wednesday (81%). Worst: Friday (69%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Late-arriving aircraft39%
- Airline (crew, maintenance, boarding)26%
- Air traffic control and airport volume18%
- Severe weather16%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
DEN to SBP questions
- What time of day is best to fly DEN to SBP?
- 9 AM to noon: 78% of flights arrived on time, against 74% for departures 6 to 9 PM.
- Which airline is most on time from DEN to SBP?
- SkyWest, with a season-adjusted 78% chance of operating and arriving on time over 351 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on DEN to SBP?
- June (57% on time); the best was March (83%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from DEN
- SBP to DEN (return)
- DEN to PHX 75%
- DEN to SLC 77%
- DEN to LAX 79%
- DEN to LAS 75%
- DEN to SEA 73%
- DEN to ORD 70%
- DEN to DFW 75%
- DEN to SAN 76%
- DEN to MSP 78%
- DEN to ATL 80%
- DEN to SFO 68%
- DEN to AUS 76%
Most on-time flights from DEN on every route →
Live status: FAA delays and ground stops