Flight OddsUA5821 ORD → MKE
United Airlines · Chicago, IL to Milwaukee, WI · 271 flights observed, 2025-07-01 to 2026-05-20 · 67 mi
UA5821 covers more than one route in the data window — the stats below are for ORD → MKE, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
74%
Median delay
-5 min
90th percentile
+55 min
Cancellation rate
4%
How often is UA5821 on time?
Across 271 flights on ORD → MKE from 2025-07-01 to 2026-05-20, UA5821 arrived within 15 minutes of schedule 74% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +55 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 190 | 74% |
| 16-30 min | 25 | 10% |
| 31-60 min | 21 | 8% |
| 61-120 min | 16 | 6% |
| 2+ hrs | 6 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 80% | +2 min |
| 2025-08 | 28 | 82% | +5 min |
| 2025-09 | 29 | 83% | -1 min |
| 2025-10 | 30 | 70% | +4 min |
| 2025-11 | 26 | 65% | +7 min |
| 2025-12 | 17 | 65% | +41 min |
| 2026-01 | 25 | 60% | +25 min |
| 2026-02 | 27 | 67% | +6 min |
| 2026-03 | 26 | 73% | +9 min |
| 2026-04 | 1 | 100% | +6 min |
| 2026-05 | 19 | 89% | -8 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 37 | 62% |
| Tue | 39 | 82% |
| Wed | 38 | 71% |
| Thu | 38 | 87% |
| Fri | 36 | 67% |
| Sat | 35 | 74% |
| Sun | 35 | 71% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…