Flight OddsAA4521 BDL → ORD
American Airlines · Hartford, CT to Chicago, IL · 84 flights observed, 2025-11-22 to 2026-04-06 · 783 mi
AA4521 covers more than one route in the data window — the stats below are for BDL → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
69%
Median delay
-6 min
90th percentile
+60 min
Cancellation rate
10%
How often is AA4521 on time?
Across 84 flights on BDL → ORD from 2025-11-22 to 2026-04-06, AA4521 arrived within 15 minutes of schedule 69% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +60 min or later. 10% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 52 | 69% |
| 16-30 min | 10 | 13% |
| 31-60 min | 5 | 7% |
| 61-120 min | 6 | 8% |
| 2+ hrs | 2 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 1 | 100% | -18 min |
| 2025-12 | 15 | 80% | +7 min |
| 2026-01 | 22 | 77% | -2 min |
| 2026-02 | 12 | 67% | -1 min |
| 2026-03 | 20 | 60% | +14 min |
| 2026-04 | 5 | 40% | +24 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 10 | 80% |
| Tue | 10 | 90% |
| Wed | 13 | 62% |
| Thu | 11 | 73% |
| Fri | 10 | 60% |
| Sat | 11 | 55% |
| Sun | 10 | 70% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…