United Airlines · Chicago, IL to Cedar Rapids/Iowa City, IA · 223 flights observed, 2025-07-01 to 2026-05-20 · 196 mi
UA4388 covers more than one route in the data window — the stats below are for ORD → CID, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA4388 on time?
Across 223 flights on ORD → CID from 2025-07-01 to 2026-05-20, UA4388 arrived within 15 minutes of schedule 65% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +121 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 142 | 65% |
| 16-30 min | 14 | 6% |
| 31-60 min | 15 | 7% |
| 61-120 min | 24 | 11% |
| 2+ hrs | 22 | 10% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 29 | 41% | +56 min |
| 2025-08 | 13 | 85% | -1 min |
| 2025-09 | 30 | 73% | +6 min |
| 2025-10 | 31 | 94% | -3 min |
| 2025-11 | 27 | 67% | +31 min |
| 2025-12 | 26 | 46% | +56 min |
| 2026-01 | 5 | 60% | +6 min |
| 2026-02 | 14 | 79% | +1 min |
| 2026-03 | 7 | 71% | +37 min |
| 2026-04 | 28 | 54% | +52 min |
| 2026-05 | 7 | 57% | +46 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 31 | 52% |
| Tue | 36 | 64% |
| Wed | 34 | 62% |
| Thu | 30 | 67% |
| Fri | 30 | 67% |
| Sat | 26 | 69% |
| Sun | 30 | 80% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…