American Airlines · Cedar Rapids/Iowa City, IA to Chicago, IL · 71 flights observed, 2025-12-18 to 2026-04-06 · 196 mi
AA4539 covers more than one route in the data window — the stats below are for CID → ORD, the one it has flown most recently. The others are linked under “Other routes”.
How often is AA4539 on time?
Across 71 flights on CID → ORD from 2025-12-18 to 2026-04-06, AA4539 arrived within 15 minutes of schedule 57% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +115 min or later. 8% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 37 | 57% |
| 16-30 min | 4 | 6% |
| 31-60 min | 9 | 14% |
| 61-120 min | 9 | 14% |
| 2+ hrs | 6 | 9% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 11 | 64% | +24 min |
| 2026-01 | 5 | 60% | +10 min |
| 2026-02 | 17 | 71% | +5 min |
| 2026-03 | 28 | 46% | +51 min |
| 2026-04 | 4 | 50% | +24 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 11 | 64% |
| Tue | 8 | 63% |
| Wed | 9 | 67% |
| Thu | 9 | 33% |
| Fri | 9 | 56% |
| Sat | 9 | 44% |
| Sun | 10 | 70% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…