Flight OddsAA3897 ORD → STL
American Airlines · Chicago, IL to St. Louis, MO · 20 flights observed, 2026-02-12 to 2026-03-06 · 258 mi
AA3897 covers more than one route in the data window — the stats below are for ORD → STL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
85%
Median delay
-4 min
90th percentile
+35 min
Cancellation rate
0%
How often is AA3897 on time?
Across 20 flights on ORD → STL from 2026-02-12 to 2026-03-06, AA3897 arrived within 15 minutes of schedule 85% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +35 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 | 17 | 85% |
| 16-30 min | 0 | 0% |
| 31-60 min | 3 | 15% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-02 | 14 | 86% | -1 min |
| 2026-03 | 6 | 83% | +3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 100% |
| Tue | 3 | 100% |
| Wed | 3 | 100% |
| Thu | 4 | 100% |
| Fri | 4 | 25% |
| Sat | No data | — |
| Sun | 3 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…