Flight OddsAA3637 ORD → BHM
American Airlines · Chicago, IL to Birmingham, AL · 24 flights observed, 2026-02-12 to 2026-03-07 · 584 mi
AA3637 covers more than one route in the data window — the stats below are for ORD → BHM, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
67%
Median delay
-4 min
90th percentile
+63 min
Cancellation rate
0%
How often is AA3637 on time?
Across 24 flights on ORD → BHM from 2026-02-12 to 2026-03-07, AA3637 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +63 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 16 | 67% |
| 16-30 min | 5 | 21% |
| 31-60 min | 0 | 0% |
| 61-120 min | 2 | 8% |
| 2+ hrs | 1 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-02 | 17 | 71% | +4 min |
| 2026-03 | 7 | 57% | +42 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 100% |
| Tue | 3 | 100% |
| Wed | 3 | 33% |
| Thu | 4 | 100% |
| Fri | 4 | 50% |
| Sat | 4 | 25% |
| Sun | 3 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…