DL4001 LAX → SAN
Delta Air Lines · Los Angeles, CA to San Diego, CA · 270 flights observed, 2025-07-06 to 2026-06-30 · 109 mi
DL4001 covers more than one route in the data window — the stats below are for LAX → SAN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
85%
Median delay
-3 min
90th percentile
+31 min
Cancellation rate
0%
How often is DL4001 on time?
Across 270 flights on LAX → SAN from 2025-07-06 to 2026-06-30, DL4001 arrived within 15 minutes of schedule 85% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +31 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 | 228 | 85% |
| 16-30 min | 13 | 5% |
| 31-60 min | 18 | 7% |
| 61-120 min | 5 | 2% |
| 2+ hrs | 5 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 23 | 87% | +2 min |
| 2025-08 | 20 | 90% | +4 min |
| 2025-09 | 17 | 82% | +1 min |
| 2025-10 | 26 | 73% | +14 min |
| 2025-11 | 23 | 83% | +2 min |
| 2025-12 | 17 | 82% | +11 min |
| 2026-01 | 24 | 79% | +8 min |
| 2026-02 | 28 | 86% | +9 min |
| 2026-03 | 31 | 84% | +6 min |
| 2026-04 | 30 | 93% | -6 min |
| 2026-05 | 6 | 83% | +17 min |
| 2026-06 | 24 | 92% | -5 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 43 | 74% |
| Tue | 43 | 93% |
| Wed | 42 | 88% |
| Thu | 41 | 88% |
| Fri | 40 | 78% |
| Sat | 19 | 84% |
| Sun | 41 | 88% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…