Flight OddsAA4500 BOS → STL
American Airlines · Boston, MA to St. Louis, MO · 102 flights observed, 2025-11-02 to 2026-03-06 · 1,047 mi
AA4500 covers more than one route in the data window — the stats below are for BOS → STL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
90%
Median delay
-18 min
90th percentile
+13 min
Cancellation rate
5%
How often is AA4500 on time?
Across 102 flights on BOS → STL from 2025-11-02 to 2026-03-06, AA4500 arrived within 15 minutes of schedule 90% of the time. The median arrival delay was -18 min, and the worst 10% of flights arrived +13 min or later. 5% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 87 | 90% |
| 16-30 min | 4 | 4% |
| 31-60 min | 4 | 4% |
| 61-120 min | 2 | 2% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 25 | 100% | -16 min |
| 2025-12 | 15 | 87% | -14 min |
| 2026-01 | 28 | 89% | -17 min |
| 2026-02 | 23 | 83% | -10 min |
| 2026-03 | 6 | 83% | +0 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 14 | 93% |
| Tue | 15 | 87% |
| Wed | 14 | 93% |
| Thu | 15 | 93% |
| Fri | 16 | 94% |
| Sat | 7 | 100% |
| Sun | 16 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…