Flight Reliability
DL 4325 · Delta Air Lines
Salt Lake City → TWF (SLC–TWF)
100
Nerd Approved
WanderNerd Reliability Score
- 93%
- Arrive within 15 minutes
- 0 min
- Average arrival delay
- 0%
- Cancelled
- 14 min early
- Median arrival delay
Based on 86 historical flights. Data through May 2026.
What the data says
Wednesdays have been rough.
DL 4325 arrived on time 100% of the time on Thursdays and just 83% on Wednesdays. That gap is worth planning around.
Better than the Delta Air Lines network average.
DL 4325 arrived on time 93% of the time, versus 81% across the Delta Air Lines network.
The breakdown
- Mon92%(12 flights)
- Tue92%(12 flights)
- Wed83%(12 flights)
- Thu100%(12 flights)
- Fri92%(12 flights)
- Sat100%(13 flights)
- Sun92%(13 flights)
- 3–6 PM94%(17 flights)
- 9 PM–12 AM93%(69 flights)
94%
May
Mar 96% → May 94% on time
| Month | On-time percentage | Flights |
|---|---|---|
| March 2026 | 96% | 25 |
| April 2026 | 90% | 30 |
| May 2026 | 94% | 31 |
- Departures on time
- 92%
- Diverted
- 0%
- Flights flown
- 86
- Months covered
- 3
Same route, other flights
Keep nerding
Based on 86 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.