Flight OddsUnited Airlines · St. Louis, MO to San Francisco, CA · 37 flights observed, 2026-03-29 to 2026-05-20 · 1,735 mi
UA5943 covers more than one route in the data window — the stats below are for STL → SFO, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA5943 on time?
Across 37 flights on STL → SFO from 2026-03-29 to 2026-05-20, UA5943 arrived within 15 minutes of schedule 25% of the time. The median arrival delay was +43 min, and the worst 10% of flights arrived +125 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 9 | 25% |
| 16-30 min | 4 | 11% |
| 31-60 min | 7 | 19% |
| 61-120 min | 12 | 33% |
| 2+ hrs | 4 | 11% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 2 | 50% | -4 min |
| 2026-04 | 20 | 30% | +106 min |
| 2026-05 | 14 | 14% | +58 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 14% |
| Tue | No data | — |
| Wed | 3 | 33% |
| Thu | 7 | 29% |
| Fri | 7 | 14% |
| Sat | 4 | 50% |
| Sun | 8 | 25% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…