Flight OddsUA5121 ORD → MCW
United Airlines · Chicago, IL to Mason City, IA · 26 flights observed, 2025-08-20 to 2025-09-24 · 288 mi
UA5121 covers more than one route in the data window — the stats below are for ORD → MCW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
96%
Median delay
-12 min
90th percentile
-4 min
Cancellation rate
0%
How often is UA5121 on time?
Across 26 flights on ORD → MCW from 2025-08-20 to 2025-09-24, UA5121 arrived within 15 minutes of schedule 96% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived -4 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 | 24 | 96% |
| 16-30 min | 0 | 0% |
| 31-60 min | 0 | 0% |
| 61-120 min | 1 | 4% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 9 | 100% | -12 min |
| 2025-09 | 16 | 94% | -7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 100% |
| Tue | No data | — |
| Wed | 6 | 83% |
| Thu | 5 | 100% |
| Fri | 5 | 100% |
| Sat | No data | — |
| Sun | 5 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…