UA1958 SFO → ORD
United Airlines · San Francisco, CA to Chicago, IL · 13 flights observed, 2026-04-02 to 2026-04-27 · 1,846 mi
UA1958 covers more than one route in the data window — the stats below are for SFO → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
92%
Median delay
-15 min
90th percentile
+12 min
Cancellation rate
8%
How often is UA1958 on time?
Across 13 flights on SFO → ORD from 2026-04-02 to 2026-04-27, UA1958 arrived within 15 minutes of schedule 92% of the time. The median arrival delay was -15 min, and the worst 10% of flights arrived +12 min or later. 8% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 11 | 92% |
| 16-30 min | 0 | 0% |
| 31-60 min | 0 | 0% |
| 61-120 min | 1 | 8% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 12 | 92% | -5 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 75% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | No data | — |
| Fri | 4 | 100% |
| Sat | No data | — |
| Sun | 4 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…