Flight OddsUA2391 DEN → SFO
United Airlines · Denver, CO to San Francisco, CA · 279 flights observed, 2025-09-25 to 2026-06-30 · 967 mi
UA2391 covers more than one route in the data window — the stats below are for DEN → SFO, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
72%
Median delay
-1 min
90th percentile
+36 min
Cancellation rate
1%
How often is UA2391 on time?
Across 279 flights on DEN → SFO from 2025-09-25 to 2026-06-30, UA2391 arrived within 15 minutes of schedule 72% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +36 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 | 199 | 72% |
| 16-30 min | 31 | 11% |
| 31-60 min | 31 | 11% |
| 61-120 min | 8 | 3% |
| 2+ hrs | 8 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-09 | 6 | 100% | -10 min |
| 2025-10 | 31 | 71% | +11 min |
| 2025-11 | 29 | 72% | +8 min |
| 2025-12 | 31 | 68% | +9 min |
| 2026-01 | 31 | 81% | +3 min |
| 2026-02 | 28 | 79% | 0 min |
| 2026-03 | 31 | 90% | -1 min |
| 2026-04 | 30 | 63% | +10 min |
| 2026-05 | 31 | 71% | +7 min |
| 2026-06 | 29 | 45% | +35 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 40 | 73% |
| Tue | 40 | 73% |
| Wed | 38 | 79% |
| Thu | 40 | 60% |
| Fri | 40 | 73% |
| Sat | 39 | 77% |
| Sun | 40 | 70% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…