Flight OddsAA4170 SDF → BOS
American Airlines · Louisville, KY to Boston, MA · 65 flights observed, 2025-09-03 to 2026-05-20 · 829 mi
AA4170 covers more than one route in the data window — the stats below are for SDF → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
54%
Median delay
+12 min
90th percentile
+95 min
Cancellation rate
0%
How often is AA4170 on time?
Across 65 flights on SDF → BOS from 2025-09-03 to 2026-05-20, AA4170 arrived within 15 minutes of schedule 54% of the time. The median arrival delay was +12 min, and the worst 10% of flights arrived +95 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 | 35 | 54% |
| 16-30 min | 8 | 12% |
| 31-60 min | 9 | 14% |
| 61-120 min | 10 | 15% |
| 2+ hrs | 3 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-09 | 28 | 36% | +39 min |
| 2025-10 | 5 | 80% | -1 min |
| 2026-04 | 18 | 56% | +23 min |
| 2026-05 | 14 | 79% | +7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 10 | 60% |
| Tue | 11 | 73% |
| Wed | 12 | 33% |
| Thu | 11 | 45% |
| Fri | 5 | 40% |
| Sat | 5 | 100% |
| Sun | 11 | 45% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…