Flight OddsDL4178 TUS → SLC
Delta Air Lines · Tucson, AZ to Salt Lake City, UT · 58 flights observed, 2026-01-05 to 2026-03-06 · 600 mi
DL4178 covers more than one route in the data window — the stats below are for TUS → SLC, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
84%
Median delay
-14 min
90th percentile
+31 min
Cancellation rate
0%
How often is DL4178 on time?
Across 58 flights on TUS → SLC from 2026-01-05 to 2026-03-06, DL4178 arrived within 15 minutes of schedule 84% of the time. The median arrival delay was -14 min, and the worst 10% of flights arrived +31 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 | 49 | 84% |
| 16-30 min | 3 | 5% |
| 31-60 min | 2 | 3% |
| 61-120 min | 2 | 3% |
| 2+ hrs | 2 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 27 | 96% | -15 min |
| 2026-02 | 25 | 76% | +4 min |
| 2026-03 | 6 | 67% | +18 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 9 | 89% |
| Tue | 9 | 89% |
| Wed | 9 | 78% |
| Thu | 9 | 89% |
| Fri | 9 | 78% |
| Sat | 5 | 100% |
| Sun | 8 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…