Flight OddsUnited Airlines · Chicago, IL to San Francisco, CA · 117 flights observed, 2025-07-01 to 2025-10-25 · 1,846 mi
UA1387 covers more than one route in the data window — the stats below are for ORD → SFO, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA1387 on time?
Across 117 flights on ORD → SFO from 2025-07-01 to 2025-10-25, UA1387 arrived within 15 minutes of schedule 85% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +21 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 | 99 | 85% |
| 16-30 min | 11 | 9% |
| 31-60 min | 2 | 2% |
| 61-120 min | 2 | 2% |
| 2+ hrs | 3 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 81% | +6 min |
| 2025-08 | 31 | 77% | +4 min |
| 2025-09 | 30 | 100% | -21 min |
| 2025-10 | 25 | 80% | 0 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 16 | 94% |
| Tue | 17 | 88% |
| Wed | 17 | 76% |
| Thu | 17 | 88% |
| Fri | 17 | 82% |
| Sat | 17 | 82% |
| Sun | 16 | 81% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…