UA1550 DEN → SBP
United Airlines · Denver, CO to San Luis Obispo, CA · 321 flights observed, 2025-07-01 to 2026-05-20 · 931 mi
UA1550 covers more than one route in the data window — the stats below are for DEN → SBP, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
79%
Median delay
-4 min
90th percentile
+64 min
Cancellation rate
1%
How often is UA1550 on time?
Across 321 flights on DEN → SBP from 2025-07-01 to 2026-05-20, UA1550 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +64 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 245 | 79% |
| 16-30 min | 19 | 6% |
| 31-60 min | 16 | 5% |
| 61-120 min | 16 | 5% |
| 2+ hrs | 16 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 42% | +49 min |
| 2025-08 | 29 | 69% | +83 min |
| 2025-09 | 27 | 81% | +8 min |
| 2025-10 | 30 | 87% | +2 min |
| 2025-11 | 27 | 89% | +24 min |
| 2025-12 | 30 | 87% | +23 min |
| 2026-01 | 30 | 87% | -9 min |
| 2026-02 | 28 | 86% | +2 min |
| 2026-03 | 31 | 84% | -3 min |
| 2026-04 | 29 | 86% | -3 min |
| 2026-05 | 20 | 65% | +16 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 43 | 86% |
| Tue | 46 | 78% |
| Wed | 45 | 89% |
| Thu | 44 | 68% |
| Fri | 44 | 86% |
| Sat | 45 | 78% |
| Sun | 45 | 64% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…