Flight OddsAA4385 ORD → BOS
American Airlines · Chicago, IL to Boston, MA · 13 flights observed, 2025-12-03 to 2025-12-17 · 867 mi
AA4385 covers more than one route in the data window — the stats below are for ORD → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
69%
Median delay
-10 min
90th percentile
+41 min
Cancellation rate
0%
How often is AA4385 on time?
Across 13 flights on ORD → BOS from 2025-12-03 to 2025-12-17, AA4385 arrived within 15 minutes of schedule 69% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +41 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 | 9 | 69% |
| 16-30 min | 2 | 15% |
| 31-60 min | 1 | 8% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 13 | 69% | +7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 2 | 0% |
| Tue | 2 | 100% |
| Wed | 3 | 100% |
| Thu | 2 | 100% |
| Fri | 2 | 50% |
| Sat | No data | — |
| Sun | 2 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…