Flight OddsAA4205 BOS → SDF
American Airlines · Boston, MA to Louisville, KY · 20 flights observed, 2026-02-12 to 2026-03-06 · 829 mi
AA4205 covers more than one route in the data window — the stats below are for BOS → SDF, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
89%
Median delay
-4 min
90th percentile
+15 min
Cancellation rate
10%
How often is AA4205 on time?
Across 20 flights on BOS → SDF from 2026-02-12 to 2026-03-06, AA4205 arrived within 15 minutes of schedule 89% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +15 min or later. 10% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 16 | 89% |
| 16-30 min | 1 | 6% |
| 31-60 min | 1 | 6% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-02 | 12 | 83% | -1 min |
| 2026-03 | 6 | 100% | -4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 2 | 100% |
| Tue | 2 | 100% |
| Wed | 3 | 67% |
| Thu | 4 | 75% |
| Fri | 4 | 100% |
| Sat | No data | — |
| Sun | 3 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…