Flight Reliability
DL 2335 · Delta Air Lines
IDA → Salt Lake City (IDA–SLC)
94
Nerd Approved
WanderNerd Reliability Score
- 90%
- Arrive within 15 minutes
- 10 min
- Average arrival delay
- 0.9%
- Cancelled
- 8 min early
- Median arrival delay
Based on 317 historical flights. Data through May 2026.
What the data says
Wednesdays have been rough.
DL 2335 arrived on time 98% of the time on Sundays and just 80% on Wednesdays. That gap is worth planning around.
Better than the Delta Air Lines network average.
DL 2335 arrived on time 90% of the time, versus 81% across the Delta Air Lines network.
Slipping a little lately.
DL 2335 arrived on time 86% of the time over the last three months in the data, compared with 91% in the three months before that.
The breakdown
- Mon91%(45 flights)
- Tue91%(45 flights)
- Wed80%(45 flights)
- Thu89%(44 flights)
- Fri91%(45 flights)
- Sat87%(45 flights)
- Sun98%(45 flights)
- 3–6 AM90%(100 flights)
- 6–9 AM89%(214 flights)
77%
May
Jun 97% → May 77% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 97% | 30 |
| July 2025 | 84% | 31 |
| August 2025 | 97% | 31 |
| September 2025 | 100% | 30 |
| October 2025 | 78% | 27 |
| November 2025 | 100% | 21 |
| December 2025 | 83% | 30 |
| January 2026 | 90% | 31 |
| February 2026 | 85% | 27 |
| April 2026 | 94% | 18 |
| May 2026 | 77% | 31 |
- Departures on time
- 90%
- Diverted
- 0%
- Flights flown
- 314
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 317 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.