Flight OddsAA3563 STL → BOS
American Airlines · St. Louis, MO to Boston, MA · 119 flights observed, 2025-07-01 to 2025-11-01 · 1,047 mi
AA3563 covers more than one route in the data window — the stats below are for STL → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
87%
Median delay
-10 min
90th percentile
+22 min
Cancellation rate
0%
How often is AA3563 on time?
Across 119 flights on STL → BOS from 2025-07-01 to 2025-11-01, AA3563 arrived within 15 minutes of schedule 87% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +22 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 | 104 | 87% |
| 16-30 min | 5 | 4% |
| 31-60 min | 6 | 5% |
| 61-120 min | 2 | 2% |
| 2+ hrs | 2 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 90% | -6 min |
| 2025-08 | 26 | 96% | -11 min |
| 2025-09 | 30 | 87% | -2 min |
| 2025-10 | 31 | 77% | +8 min |
| 2025-11 | 1 | 100% | -29 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 17 | 88% |
| Tue | 18 | 94% |
| Wed | 18 | 89% |
| Thu | 18 | 61% |
| Fri | 17 | 94% |
| Sat | 14 | 93% |
| Sun | 17 | 94% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…