Flight OddsUnited Airlines · San Francisco, CA to St. Louis, MO · 24 flights observed, 2026-03-05 to 2026-03-28 · 1,735 mi
UA5304 covers more than one route in the data window — the stats below are for SFO → STL, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA5304 on time?
Across 24 flights on SFO → STL from 2026-03-05 to 2026-03-28, UA5304 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +36 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 19 | 86% |
| 16-30 min | 0 | 0% |
| 31-60 min | 2 | 9% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 22 | 86% | +43 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 67% |
| Tue | 3 | 100% |
| Wed | 3 | 100% |
| Thu | 4 | 75% |
| Fri | 3 | 100% |
| Sat | 3 | 100% |
| Sun | 3 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…