Delta Air Lines · San Francisco, CA to Salt Lake City, UT · 118 flights observed, 2025-07-06 to 2025-12-19 · 599 mi
DL2166 covers more than one route in the data window — the stats below are for SFO → SLC, the one it has flown most recently. The others are linked under “Other routes”.
How often is DL2166 on time?
Across 118 flights on SFO → SLC from 2025-07-06 to 2025-12-19, DL2166 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +47 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 | 98 | 83% |
| 16-30 min | 4 | 3% |
| 31-60 min | 7 | 6% |
| 61-120 min | 4 | 3% |
| 2+ hrs | 5 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 23 | 83% | +14 min |
| 2025-08 | 20 | 75% | +15 min |
| 2025-09 | 17 | 94% | -3 min |
| 2025-10 | 23 | 87% | +1 min |
| 2025-11 | 18 | 83% | -5 min |
| 2025-12 | 17 | 76% | +12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 20 | 75% |
| Tue | 19 | 95% |
| Wed | 19 | 89% |
| Thu | 19 | 84% |
| Fri | 19 | 74% |
| Sat | 1 | 0% |
| Sun | 21 | 86% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…