Flight OddsAA4391 ACK → ORD
American Airlines · Nantucket, MA to Chicago, IL · 4 flights observed, 2025-08-09 to 2025-08-30 · 924 mi
AA4391 covers more than one route in the data window — the stats below are for ACK → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
75%
Median delay
-8 min
90th percentile
+215 min
Cancellation rate
0%
How often is AA4391 on time?
Across 4 flights on ACK → ORD from 2025-08-09 to 2025-08-30, AA4391 arrived within 15 minutes of schedule 75% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +215 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 | 3 | 75% |
| 16-30 min | 0 | 0% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 25% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 4 | 75% | +67 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | No data | — |
| Tue | No data | — |
| Wed | No data | — |
| Thu | No data | — |
| Fri | No data | — |
| Sat | 4 | 75% |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…