Flight OddsAA4421 IND → BOS
American Airlines · Indianapolis, IN to Boston, MA · 14 flights observed, 2025-12-18 to 2026-01-05 · 818 mi
AA4421 covers more than one route in the data window — the stats below are for IND → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
69%
Median delay
-7 min
90th percentile
+55 min
Cancellation rate
7%
How often is AA4421 on time?
Across 14 flights on IND → BOS from 2025-12-18 to 2026-01-05, AA4421 arrived within 15 minutes of schedule 69% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +55 min or later. 7% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 9 | 69% |
| 16-30 min | 0 | 0% |
| 31-60 min | 3 | 23% |
| 61-120 min | 1 | 8% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 9 | 56% | +20 min |
| 2026-01 | 4 | 100% | -14 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 67% |
| Tue | 2 | 100% |
| Wed | No data | — |
| Thu | 3 | 67% |
| Fri | 2 | 50% |
| Sat | No data | — |
| 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…