Flight OddsAA4921 PHX → BOI
American Airlines · Phoenix, AZ to Boise, ID · 67 flights observed, 2025-08-06 to 2025-11-01 · 735 mi
AA4921 covers more than one route in the data window — the stats below are for PHX → BOI, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
82%
Median delay
-3 min
90th percentile
+33 min
Cancellation rate
0%
How often is AA4921 on time?
Across 67 flights on PHX → BOI from 2025-08-06 to 2025-11-01, AA4921 arrived within 15 minutes of schedule 82% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +33 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 | 55 | 82% |
| 16-30 min | 4 | 6% |
| 31-60 min | 5 | 7% |
| 61-120 min | 3 | 4% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 25 | 88% | +5 min |
| 2025-09 | 13 | 100% | -17 min |
| 2025-10 | 28 | 68% | +10 min |
| 2025-11 | 1 | 100% | 0 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 12 | 92% |
| Tue | 8 | 75% |
| Wed | 8 | 100% |
| Thu | 12 | 83% |
| Fri | 8 | 88% |
| Sat | 8 | 88% |
| Sun | 11 | 55% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…