Flight OddsUA1598 ORD → SAN
United Airlines · Chicago, IL to San Diego, CA · 18 flights observed, 2026-02-12 to 2026-03-04 · 1,723 mi
UA1598 covers more than one route in the data window — the stats below are for ORD → SAN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
67%
Median delay
+3 min
90th percentile
+28 min
Cancellation rate
0%
How often is UA1598 on time?
Across 18 flights on ORD → SAN from 2026-02-12 to 2026-03-04, UA1598 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +28 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 | 12 | 67% |
| 16-30 min | 4 | 22% |
| 31-60 min | 2 | 11% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-02 | 14 | 57% | +11 min |
| 2026-03 | 4 | 100% | -11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 67% |
| Tue | 3 | 67% |
| Wed | 3 | 100% |
| Thu | 3 | 33% |
| Fri | 3 | 67% |
| Sat | No data | — |
| 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…