AA3742 ORD → STL
American Airlines · Chicago, IL to St. Louis, MO · 32 flights observed, 2026-01-06 to 2026-02-11 · 258 mi
AA3742 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
56%
Median delay
+9 min
90th percentile
+108 min
Cancellation rate
0%
How often is AA3742 on time?
Across 32 flights on ORD → STL from 2026-01-06 to 2026-02-11, AA3742 arrived within 15 minutes of schedule 56% of the time. The median arrival delay was +9 min, and the worst 10% of flights arrived +108 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 | 18 | 56% |
| 16-30 min | 1 | 3% |
| 31-60 min | 6 | 19% |
| 61-120 min | 4 | 13% |
| 2+ hrs | 3 | 9% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 22 | 50% | +38 min |
| 2026-02 | 10 | 70% | +18 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 40% |
| Tue | 6 | 83% |
| Wed | 6 | 67% |
| Thu | 5 | 60% |
| Fri | 5 | 40% |
| Sat | No data | — |
| Sun | 5 | 40% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…