Flight OddsUnited Airlines · Philadelphia, PA to San Francisco, CA · 97 flights observed, 2025-12-19 to 2026-03-28 · 2,522 mi
UA1973 covers more than one route in the data window — the stats below are for PHL → SFO, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA1973 on time?
Across 97 flights on PHL → SFO from 2025-12-19 to 2026-03-28, UA1973 arrived within 15 minutes of schedule 85% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +26 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 | 80 | 85% |
| 16-30 min | 5 | 5% |
| 31-60 min | 7 | 7% |
| 61-120 min | 2 | 2% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 11 | 45% | +22 min |
| 2026-01 | 28 | 93% | -13 min |
| 2026-02 | 27 | 85% | -5 min |
| 2026-03 | 28 | 93% | -15 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 12 | 75% |
| Tue | 14 | 79% |
| Wed | 14 | 93% |
| Thu | 14 | 86% |
| Fri | 15 | 93% |
| Sat | 12 | 83% |
| Sun | 13 | 85% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…