Flight OddsAA4521 ORD → BDL
American Airlines · Chicago, IL to Hartford, CT · 82 flights observed, 2025-12-03 to 2026-04-06 · 783 mi
AA4521 covers more than one route in the data window — the stats below are for ORD → BDL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
75%
Median delay
-8 min
90th percentile
+73 min
Cancellation rate
6%
How often is AA4521 on time?
Across 82 flights on ORD → BDL from 2025-12-03 to 2026-04-06, AA4521 arrived within 15 minutes of schedule 75% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +73 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 | 58 | 75% |
| 16-30 min | 1 | 1% |
| 31-60 min | 7 | 9% |
| 61-120 min | 7 | 9% |
| 2+ hrs | 4 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 15 | 73% | +15 min |
| 2026-01 | 24 | 88% | +8 min |
| 2026-02 | 11 | 64% | +15 min |
| 2026-03 | 22 | 77% | +13 min |
| 2026-04 | 5 | 40% | +30 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 10 | 90% |
| Tue | 12 | 83% |
| Wed | 13 | 62% |
| Thu | 10 | 80% |
| Fri | 11 | 73% |
| Sat | 11 | 64% |
| Sun | 10 | 80% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…