DL4148 LAX → BOI
Delta Air Lines · Los Angeles, CA to Boise, ID · 193 flights observed, 2025-12-20 to 2026-06-30 · 674 mi
DL4148 covers more than one route in the data window — the stats below are for LAX → BOI, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
89%
Median delay
-13 min
90th percentile
+22 min
Cancellation rate
0%
How often is DL4148 on time?
Across 193 flights on LAX → BOI from 2025-12-20 to 2026-06-30, DL4148 arrived within 15 minutes of schedule 89% of the time. The median arrival delay was -13 min, and the worst 10% of flights arrived +22 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 | 171 | 89% |
| 16-30 min | 6 | 3% |
| 31-60 min | 5 | 3% |
| 61-120 min | 9 | 5% |
| 2+ hrs | 2 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 12 | 83% | -4 min |
| 2026-01 | 31 | 97% | -13 min |
| 2026-02 | 28 | 82% | -1 min |
| 2026-03 | 31 | 81% | +1 min |
| 2026-04 | 30 | 97% | -5 min |
| 2026-05 | 31 | 97% | -15 min |
| 2026-06 | 30 | 80% | +5 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 28 | 86% |
| Tue | 28 | 96% |
| Wed | 27 | 93% |
| Thu | 27 | 96% |
| Fri | 27 | 78% |
| Sat | 28 | 79% |
| Sun | 28 | 93% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…