Flight OddsUA519 SAN → DEN
United Airlines · San Diego, CA to Denver, CO · 272 flights observed, 2025-07-01 to 2026-06-29 · 853 mi
UA519 covers more than one route in the data window — the stats below are for SAN → DEN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
85%
Median delay
-18 min
90th percentile
+28 min
Cancellation rate
1%
How often is UA519 on time?
Across 272 flights on SAN → DEN from 2025-07-01 to 2026-06-29, UA519 arrived within 15 minutes of schedule 85% of the time. The median arrival delay was -18 min, and the worst 10% of flights arrived +28 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 | 229 | 85% |
| 16-30 min | 13 | 5% |
| 31-60 min | 12 | 4% |
| 61-120 min | 12 | 4% |
| 2+ hrs | 2 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 28 | 61% | +8 min |
| 2025-08 | 26 | 73% | +1 min |
| 2025-09 | 20 | 75% | 0 min |
| 2025-10 | 22 | 95% | -14 min |
| 2025-11 | 22 | 86% | -7 min |
| 2025-12 | 24 | 92% | -18 min |
| 2026-01 | 19 | 100% | -25 min |
| 2026-02 | 17 | 94% | -16 min |
| 2026-03 | 18 | 89% | -8 min |
| 2026-04 | 26 | 100% | -25 min |
| 2026-05 | 21 | 90% | -9 min |
| 2026-06 | 25 | 80% | +8 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 42 | 86% |
| Tue | 19 | 74% |
| Wed | 48 | 90% |
| Thu | 49 | 80% |
| Fri | 50 | 86% |
| Sat | 11 | 91% |
| Sun | 49 | 90% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…