Flight OddsUnited Airlines · Salt Lake City, UT to San Francisco, CA · 1 flights observed, 2025-12-17 to 2025-12-17 · 599 mi
UA5991 covers more than one route in the data window — the stats below are for SLC → SFO, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA5991 on time?
Across 1 flights on SLC → SFO from 2025-12-17 to 2025-12-17, UA5991 arrived within 15 minutes of schedule 100% of the time. The median arrival delay was -19 min, and the worst 10% of flights arrived -19 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 1 | 100% |
| 16-30 min | 0 | 0% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 1 | 100% | -19 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | No data | — |
| Tue | No data | — |
| Wed | 1 | 100% |
| Thu | No data | — |
| Fri | No data | — |
| Sat | No data | — |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…