Flight OddsUA538 EWR → SFO
United Airlines · Newark, NJ to San Francisco, CA · 117 flights observed, 2025-07-01 to 2025-10-25 · 2,565 mi
UA538 covers more than one route in the data window — the stats below are for EWR → SFO, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
70%
Median delay
+2 min
90th percentile
+67 min
Cancellation rate
2%
How often is UA538 on time?
Across 117 flights on EWR → SFO from 2025-07-01 to 2025-10-25, UA538 arrived within 15 minutes of schedule 70% of the time. The median arrival delay was +2 min, and the worst 10% of flights arrived +67 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 80 | 70% |
| 16-30 min | 11 | 10% |
| 31-60 min | 10 | 9% |
| 61-120 min | 5 | 4% |
| 2+ hrs | 9 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 29 | 55% | +62 min |
| 2025-08 | 31 | 74% | +39 min |
| 2025-09 | 30 | 80% | +5 min |
| 2025-10 | 25 | 68% | +33 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 16 | 56% |
| Tue | 16 | 69% |
| Wed | 16 | 63% |
| Thu | 17 | 59% |
| Fri | 17 | 88% |
| Sat | 17 | 76% |
| Sun | 16 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…