Flight OddsAA4156 DAY → ORD
American Airlines · Dayton, OH to Chicago, IL · 27 flights observed, 2025-11-20 to 2025-12-17 · 240 mi
AA4156 covers more than one route in the data window — the stats below are for DAY → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
52%
Median delay
+14 min
90th percentile
+94 min
Cancellation rate
7%
How often is AA4156 on time?
Across 27 flights on DAY → ORD from 2025-11-20 to 2025-12-17, AA4156 arrived within 15 minutes of schedule 52% of the time. The median arrival delay was +14 min, and the worst 10% of flights arrived +94 min or later. 7% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 13 | 52% |
| 16-30 min | 2 | 8% |
| 31-60 min | 3 | 12% |
| 61-120 min | 5 | 20% |
| 2+ hrs | 2 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 9 | 67% | +39 min |
| 2025-12 | 16 | 44% | +36 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 100% |
| Tue | 4 | 50% |
| Wed | 4 | 25% |
| Thu | 3 | 33% |
| Fri | 4 | 75% |
| Sat | 3 | 67% |
| Sun | 4 | 25% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…