Flight OddsAA1421 MIA → ORD
American Airlines · Miami, FL to Chicago, IL · 37 flights observed, 2026-01-06 to 2026-02-11 · 1,197 mi
AA1421 covers more than one route in the data window — the stats below are for MIA → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
74%
Median delay
-4 min
90th percentile
+55 min
Cancellation rate
8%
How often is AA1421 on time?
Across 37 flights on MIA → ORD from 2026-01-06 to 2026-02-11, AA1421 arrived within 15 minutes of schedule 74% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +55 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 | 25 | 74% |
| 16-30 min | 2 | 6% |
| 31-60 min | 3 | 9% |
| 61-120 min | 3 | 9% |
| 2+ hrs | 1 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 23 | 70% | +12 min |
| 2026-02 | 11 | 82% | +5 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 100% |
| Tue | 6 | 100% |
| Wed | 6 | 67% |
| Thu | 5 | 40% |
| Fri | 4 | 75% |
| Sat | 5 | 40% |
| Sun | 4 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…