Flight OddsUA5121 ORD → DEC
United Airlines · Chicago, IL to Decatur, IL · 60 flights observed, 2026-01-07 to 2026-06-29 · 156 mi
UA5121 covers more than one route in the data window — the stats below are for ORD → DEC, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
76%
Median delay
-15 min
90th percentile
+36 min
Cancellation rate
2%
How often is UA5121 on time?
Across 60 flights on ORD → DEC from 2026-01-07 to 2026-06-29, UA5121 arrived within 15 minutes of schedule 76% of the time. The median arrival delay was -15 min, and the worst 10% of flights arrived +36 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 44 | 76% |
| 16-30 min | 6 | 10% |
| 31-60 min | 4 | 7% |
| 61-120 min | 3 | 5% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 16 | 69% | -7 min |
| 2026-02 | 7 | 86% | -23 min |
| 2026-03 | 2 | 100% | -24 min |
| 2026-04 | 21 | 71% | +1 min |
| 2026-05 | 8 | 88% | -1 min |
| 2026-06 | 4 | 75% | +13 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 12 | 75% |
| Tue | No data | — |
| Wed | 10 | 80% |
| Thu | 12 | 75% |
| Fri | 12 | 67% |
| Sat | No data | — |
| Sun | 12 | 83% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…