Flight OddsDelta Air Lines · Los Angeles, CA to San Francisco, CA · 352 flights observed, 2025-07-01 to 2026-06-30 · 337 mi
DL1421 covers more than one route in the data window — the stats below are for LAX → SFO, the one it has flown most recently. The others are linked under “Other routes”.
How often is DL1421 on time?
Across 352 flights on LAX → SFO from 2025-07-01 to 2026-06-30, DL1421 arrived within 15 minutes of schedule 95% of the time. The median arrival delay was -13 min, and the worst 10% of flights arrived +3 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 324 | 95% |
| 16-30 min | 5 | 1% |
| 31-60 min | 6 | 2% |
| 61-120 min | 5 | 1% |
| 2+ hrs | 2 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 97% | -9 min |
| 2025-08 | 31 | 94% | -4 min |
| 2025-09 | 30 | 97% | -8 min |
| 2025-10 | 30 | 93% | -6 min |
| 2025-11 | 28 | 93% | -7 min |
| 2025-12 | 29 | 97% | -8 min |
| 2026-01 | 29 | 100% | -19 min |
| 2026-02 | 23 | 100% | -17 min |
| 2026-03 | 25 | 96% | -15 min |
| 2026-04 | 27 | 96% | -10 min |
| 2026-05 | 29 | 93% | -6 min |
| 2026-06 | 30 | 83% | -2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 52 | 96% |
| Tue | 52 | 92% |
| Wed | 51 | 98% |
| Thu | 51 | 94% |
| Fri | 48 | 88% |
| Sat | 41 | 95% |
| Sun | 47 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…