Flight OddsUnited Airlines · San Francisco, CA to Philadelphia, PA · 74 flights observed, 2025-07-01 to 2025-09-24 · 2,522 mi
UA552 covers more than one route in the data window — the stats below are for SFO → PHL, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA552 on time?
Across 74 flights on SFO → PHL from 2025-07-01 to 2025-09-24, UA552 arrived within 15 minutes of schedule 88% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +20 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 | 65 | 88% |
| 16-30 min | 6 | 8% |
| 31-60 min | 2 | 3% |
| 61-120 min | 1 | 1% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 90% | -10 min |
| 2025-08 | 26 | 88% | -5 min |
| 2025-09 | 17 | 82% | +3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 12 | 83% |
| Tue | 7 | 86% |
| Wed | 13 | 85% |
| Thu | 12 | 83% |
| Fri | 12 | 92% |
| Sat | 7 | 86% |
| Sun | 11 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…