Flight OddsAA4384 ORD → BOS
American Airlines · Chicago, IL to Boston, MA · 72 flights observed, 2025-11-02 to 2026-06-30 · 867 mi
AA4384 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
62%
Median delay
-9 min
90th percentile
+90 min
Cancellation rate
6%
How often is AA4384 on time?
Across 72 flights on ORD → BOS from 2025-11-02 to 2026-06-30, AA4384 arrived within 15 minutes of schedule 62% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +90 min or later. 6% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 42 | 62% |
| 16-30 min | 5 | 7% |
| 31-60 min | 8 | 12% |
| 61-120 min | 9 | 13% |
| 2+ hrs | 4 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 26 | 81% | -4 min |
| 2025-12 | 2 | 0% | +114 min |
| 2026-05 | 11 | 64% | -2 min |
| 2026-06 | 29 | 48% | +29 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 10 | 70% |
| Tue | 11 | 64% |
| Wed | 9 | 67% |
| Thu | 8 | 75% |
| Fri | 10 | 80% |
| Sat | 9 | 44% |
| Sun | 11 | 36% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…