Flight OddsAA425 BOS → ORD
American Airlines · Boston, MA to Chicago, IL · 27 flights observed, 2026-04-09 to 2026-05-18 · 867 mi
AA425 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
52%
Median delay
+14 min
90th percentile
+92 min
Cancellation rate
7%
How often is AA425 on time?
Across 27 flights on BOS → ORD from 2026-04-09 to 2026-05-18, AA425 arrived within 15 minutes of schedule 52% of the time. The median arrival delay was +14 min, and the worst 10% of flights arrived +92 min or later. 7% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 13 | 52% |
| 16-30 min | 2 | 8% |
| 31-60 min | 4 | 16% |
| 61-120 min | 4 | 16% |
| 2+ hrs | 2 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 17 | 59% | +31 min |
| 2026-05 | 8 | 38% | +31 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 25% |
| Tue | 3 | 67% |
| Wed | No data | — |
| Thu | 4 | 50% |
| Fri | 5 | 20% |
| Sat | 4 | 100% |
| Sun | 5 | 60% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…