Flight OddsUA400 SMF → ORD
United Airlines · Sacramento, CA to Chicago, IL · 17 flights observed, 2025-12-18 to 2026-01-05 · 1,781 mi
UA400 covers more than one route in the data window — the stats below are for SMF → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
71%
Median delay
+3 min
90th percentile
+27 min
Cancellation rate
0%
How often is UA400 on time?
Across 17 flights on SMF → ORD from 2025-12-18 to 2026-01-05, UA400 arrived within 15 minutes of schedule 71% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +27 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 | 71% |
| 16-30 min | 3 | 18% |
| 31-60 min | 2 | 12% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 12 | 67% | +6 min |
| 2026-01 | 5 | 80% | -5 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 67% |
| Tue | 2 | 50% |
| Wed | No data | — |
| Thu | 3 | 100% |
| Fri | 3 | 100% |
| Sat | 3 | 33% |
| 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…