Flight OddsAA1121 PHL → BOS
American Airlines · Philadelphia, PA to Boston, MA · 25 flights observed, 2025-10-06 to 2025-11-01 · 280 mi
AA1121 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
52%
Median delay
+14 min
90th percentile
+49 min
Cancellation rate
0%
How often is AA1121 on time?
Across 25 flights on PHL → BOS from 2025-10-06 to 2025-11-01, AA1121 arrived within 15 minutes of schedule 52% of the time. The median arrival delay was +14 min, and the worst 10% of flights arrived +49 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 | 13 | 52% |
| 16-30 min | 4 | 16% |
| 31-60 min | 6 | 24% |
| 61-120 min | 1 | 4% |
| 2+ hrs | 1 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 24 | 54% | +18 min |
| 2025-11 | 1 | 0% | +61 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 50% |
| Tue | 4 | 75% |
| Wed | 4 | 75% |
| Thu | 4 | 25% |
| Fri | 3 | 67% |
| Sat | 3 | 0% |
| Sun | 3 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…