AA399 AUS → PHL
American Airlines · Austin, TX to Philadelphia, PA · 15 flights observed, 2026-05-03 to 2026-05-20 · 1,431 mi
AA399 covers more than one route in the data window — the stats below are for AUS → PHL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
80%
Median delay
+2 min
90th percentile
+20 min
Cancellation rate
0%
How often is AA399 on time?
Across 15 flights on AUS → PHL from 2026-05-03 to 2026-05-20, AA399 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was +2 min, and the worst 10% of flights arrived +20 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 | 12 | 80% |
| 16-30 min | 2 | 13% |
| 31-60 min | 0 | 0% |
| 61-120 min | 1 | 7% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 15 | 80% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 2 | 100% |
| Tue | 2 | 100% |
| Wed | 2 | 100% |
| Thu | 2 | 50% |
| Fri | 2 | 100% |
| Sat | 2 | 50% |
| Sun | 3 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…