Flight OddsAA4181 BHM → ORD
American Airlines · Birmingham, AL to Chicago, IL · 76 flights observed, 2025-07-01 to 2026-06-30 · 584 mi
AA4181 covers more than one route in the data window — the stats below are for BHM → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
85%
Median delay
-10 min
90th percentile
+31 min
Cancellation rate
1%
How often is AA4181 on time?
Across 76 flights on BHM → ORD from 2025-07-01 to 2026-06-30, AA4181 arrived within 15 minutes of schedule 85% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +31 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 64 | 85% |
| 16-30 min | 3 | 4% |
| 31-60 min | 3 | 4% |
| 61-120 min | 2 | 3% |
| 2+ hrs | 3 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 94% | -6 min |
| 2025-08 | 5 | 100% | -2 min |
| 2026-05 | 9 | 78% | -6 min |
| 2026-06 | 30 | 77% | +16 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 11 | 82% |
| Tue | 12 | 92% |
| Wed | 10 | 100% |
| Thu | 10 | 70% |
| Fri | 11 | 100% |
| Sat | 10 | 60% |
| Sun | 11 | 91% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…