Flight OddsAA3730 STL → ORD
American Airlines · St. Louis, MO to Chicago, IL · 26 flights observed, 2026-01-07 to 2026-02-11 · 258 mi
AA3730 covers more than one route in the data window — the stats below are for STL → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
58%
Median delay
+5 min
90th percentile
+50 min
Cancellation rate
8%
How often is AA3730 on time?
Across 26 flights on STL → ORD from 2026-01-07 to 2026-02-11, AA3730 arrived within 15 minutes of schedule 58% of the time. The median arrival delay was +5 min, and the worst 10% of flights arrived +50 min or later. 8% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 14 | 58% |
| 16-30 min | 2 | 8% |
| 31-60 min | 6 | 25% |
| 61-120 min | 2 | 8% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 16 | 50% | +23 min |
| 2026-02 | 8 | 75% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 60% |
| Tue | No data | — |
| Wed | 6 | 50% |
| Thu | 5 | 60% |
| Fri | 3 | 100% |
| 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…