Flight OddsDelta Air Lines · San Francisco, CA to Los Angeles, 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 SFO → LAX, the one it has flown most recently. The others are linked under “Other routes”.
How often is DL1421 on time?
Across 352 flights on SFO → LAX from 2025-07-01 to 2026-06-30, DL1421 arrived within 15 minutes of schedule 92% of the time. The median arrival delay was -14 min, and the worst 10% of flights arrived +13 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 | 313 | 92% |
| 16-30 min | 9 | 3% |
| 31-60 min | 6 | 2% |
| 61-120 min | 7 | 2% |
| 2+ hrs | 6 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 97% | -17 min |
| 2025-08 | 31 | 94% | -9 min |
| 2025-09 | 30 | 97% | -15 min |
| 2025-10 | 31 | 94% | -10 min |
| 2025-11 | 28 | 86% | +7 min |
| 2025-12 | 29 | 90% | +2 min |
| 2026-01 | 27 | 93% | -13 min |
| 2026-02 | 23 | 91% | -7 min |
| 2026-03 | 25 | 100% | -15 min |
| 2026-04 | 27 | 81% | +15 min |
| 2026-05 | 29 | 97% | -8 min |
| 2026-06 | 30 | 83% | -1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 51 | 96% |
| Tue | 52 | 92% |
| Wed | 51 | 94% |
| Thu | 51 | 86% |
| Fri | 49 | 90% |
| Sat | 40 | 93% |
| Sun | 47 | 91% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…