Flight OddsDL1556 SJC → SLC
Delta Air Lines · San Jose, CA to Salt Lake City, UT · 30 flights observed, 2025-07-01 to 2025-07-31 · 584 mi
DL1556 covers more than one route in the data window — the stats below are for SJC → SLC, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
83%
Median delay
-18 min
90th percentile
+76 min
Cancellation rate
0%
How often is DL1556 on time?
Across 30 flights on SJC → SLC from 2025-07-01 to 2025-07-31, DL1556 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -18 min, and the worst 10% of flights arrived +76 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 | 25 | 83% |
| 16-30 min | 1 | 3% |
| 31-60 min | 0 | 0% |
| 61-120 min | 2 | 7% |
| 2+ hrs | 2 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 83% | +8 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 75% |
| Tue | 5 | 60% |
| Wed | 5 | 80% |
| Thu | 5 | 80% |
| Fri | 3 | 100% |
| Sat | 4 | 100% |
| Sun | 4 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…