Flight OddsAA4921 BOI → PHX
American Airlines · Boise, ID to Phoenix, AZ · 55 flights observed, 2025-08-06 to 2025-10-30 · 735 mi
AA4921 covers more than one route in the data window — the stats below are for BOI → PHX, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
78%
Median delay
-8 min
90th percentile
+49 min
Cancellation rate
0%
How often is AA4921 on time?
Across 55 flights on BOI → PHX from 2025-08-06 to 2025-10-30, AA4921 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +49 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 | 43 | 78% |
| 16-30 min | 3 | 5% |
| 31-60 min | 5 | 9% |
| 61-120 min | 2 | 4% |
| 2+ hrs | 2 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 26 | 85% | +13 min |
| 2025-09 | 13 | 85% | +5 min |
| 2025-10 | 16 | 63% | +13 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 12 | 75% |
| Tue | 4 | 100% |
| Wed | 4 | 75% |
| Thu | 12 | 75% |
| Fri | 7 | 86% |
| Sat | 4 | 100% |
| Sun | 12 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…