Flight OddsAA4488 BOS → ORD
American Airlines · Boston, MA to Chicago, IL · 11 flights observed, 2025-12-03 to 2025-12-17 · 867 mi
AA4488 covers more than one route in the data window — the stats below are for BOS → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
36%
Median delay
+33 min
90th percentile
+67 min
Cancellation rate
0%
How often is AA4488 on time?
Across 11 flights on BOS → ORD from 2025-12-03 to 2025-12-17, AA4488 arrived within 15 minutes of schedule 36% of the time. The median arrival delay was +33 min, and the worst 10% of flights arrived +67 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 | 4 | 36% |
| 16-30 min | 1 | 9% |
| 31-60 min | 4 | 36% |
| 61-120 min | 2 | 18% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 11 | 36% | +30 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 2 | 50% |
| Tue | No data | — |
| Wed | 3 | 33% |
| Thu | 2 | 50% |
| Fri | 2 | 50% |
| Sat | No data | — |
| Sun | 2 | 0% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…