Flight OddsDelta Air Lines · Sacramento, CA to Salt Lake City, UT · 38 flights observed, 2025-10-06 to 2025-12-01 · 532 mi
DL4120 covers more than one route in the data window — the stats below are for SMF → SLC, the one it has flown most recently. The others are linked under “Other routes”.
How often is DL4120 on time?
Across 38 flights on SMF → SLC from 2025-10-06 to 2025-12-01, DL4120 arrived within 15 minutes of schedule 89% of the time. The median arrival delay was -17 min, and the worst 10% of flights arrived +11 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 | 34 | 89% |
| 16-30 min | 1 | 3% |
| 31-60 min | 1 | 3% |
| 61-120 min | 1 | 3% |
| 2+ hrs | 1 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 19 | 89% | -2 min |
| 2025-11 | 18 | 89% | -13 min |
| 2025-12 | 1 | 100% | -12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 88% |
| Tue | 6 | 100% |
| Wed | 6 | 100% |
| Thu | 5 | 100% |
| Fri | 5 | 80% |
| Sat | 1 | 100% |
| Sun | 7 | 71% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…