AA3427 MIA → BHM
American Airlines · Miami, FL to Birmingham, AL · 307 flights observed, 2025-07-01 to 2026-06-30 · 661 mi
AA3427 covers more than one route in the data window — the stats below are for MIA → BHM, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
84%
Median delay
-5 min
90th percentile
+26 min
Cancellation rate
0%
How often is AA3427 on time?
Across 307 flights on MIA → BHM from 2025-07-01 to 2026-06-30, AA3427 arrived within 15 minutes of schedule 84% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +26 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 258 | 84% |
| 16-30 min | 24 | 8% |
| 31-60 min | 15 | 5% |
| 61-120 min | 8 | 3% |
| 2+ hrs | 1 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 77% | -3 min |
| 2025-08 | 30 | 90% | -8 min |
| 2025-09 | 30 | 100% | -9 min |
| 2025-10 | 22 | 95% | -12 min |
| 2025-11 | 29 | 90% | +10 min |
| 2025-12 | 27 | 81% | +2 min |
| 2026-01 | 31 | 87% | -4 min |
| 2026-02 | 28 | 79% | +6 min |
| 2026-03 | 31 | 71% | +8 min |
| 2026-04 | 6 | 83% | +6 min |
| 2026-05 | 11 | 91% | +4 min |
| 2026-06 | 30 | 73% | +9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 46 | 87% |
| Tue | 41 | 90% |
| Wed | 40 | 85% |
| Thu | 43 | 93% |
| Fri | 45 | 80% |
| Sat | 46 | 78% |
| Sun | 45 | 78% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…