Flight OddsAA1257 PHL → BOS
American Airlines · Philadelphia, PA to Boston, MA · 123 flights observed, 2025-07-01 to 2025-11-01 · 280 mi
AA1257 covers more than one route in the data window — the stats below are for PHL → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
53%
Median delay
+12 min
90th percentile
+96 min
Cancellation rate
2%
How often is AA1257 on time?
Across 123 flights on PHL → BOS from 2025-07-01 to 2025-11-01, AA1257 arrived within 15 minutes of schedule 53% of the time. The median arrival delay was +12 min, and the worst 10% of flights arrived +96 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 64 | 53% |
| 16-30 min | 20 | 17% |
| 31-60 min | 16 | 13% |
| 61-120 min | 14 | 12% |
| 2+ hrs | 6 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 28 | 46% | +45 min |
| 2025-08 | 31 | 68% | +14 min |
| 2025-09 | 29 | 48% | +25 min |
| 2025-10 | 31 | 48% | +37 min |
| 2025-11 | 1 | 100% | +10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 17 | 53% |
| Tue | 17 | 41% |
| Wed | 16 | 69% |
| Thu | 17 | 59% |
| Fri | 18 | 44% |
| Sat | 18 | 83% |
| Sun | 17 | 24% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…