Flight OddsAA4582 ORD → BOS
American Airlines · Chicago, IL to Boston, MA · 37 flights observed, 2026-01-06 to 2026-02-11 · 867 mi
AA4582 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
65%
Median delay
+6 min
90th percentile
+73 min
Cancellation rate
8%
How often is AA4582 on time?
Across 37 flights on ORD → BOS from 2026-01-06 to 2026-02-11, AA4582 arrived within 15 minutes of schedule 65% of the time. The median arrival delay was +6 min, and the worst 10% of flights arrived +73 min or later. 8% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 22 | 65% |
| 16-30 min | 3 | 9% |
| 31-60 min | 4 | 12% |
| 61-120 min | 4 | 12% |
| 2+ hrs | 1 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 23 | 74% | +15 min |
| 2026-02 | 11 | 45% | +21 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 50% |
| Tue | 6 | 83% |
| Wed | 6 | 67% |
| Thu | 5 | 60% |
| Fri | 4 | 50% |
| Sat | 5 | 80% |
| Sun | 4 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…