Flight OddsUA1231 DTW → ORD
United Airlines · Detroit, MI to Chicago, IL · 16 flights observed, 2026-04-03 to 2026-04-28 · 235 mi
UA1231 covers more than one route in the data window — the stats below are for DTW → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
88%
Median delay
-12 min
90th percentile
+155 min
Cancellation rate
0%
How often is UA1231 on time?
Across 16 flights on DTW → ORD from 2026-04-03 to 2026-04-28, UA1231 arrived within 15 minutes of schedule 88% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +155 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 | 14 | 88% |
| 16-30 min | 0 | 0% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 2 | 13% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 16 | 88% | +30 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 100% |
| Tue | 4 | 75% |
| Wed | No data | — |
| Thu | No data | — |
| Fri | 4 | 75% |
| Sat | 4 | 100% |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…