Flight Reliability
DL 905 · Delta Air Lines
Salt Lake City → Atlanta (SLC–ATL)
88
Pretty Reliable
WanderNerd Reliability Score
- 81%
- Arrive within 15 minutes
- 2 min
- Average arrival delay
- 0.3%
- Cancelled
- 10 min early
- Median arrival delay
Based on 363 historical flights. Data through May 2026.
What the data says
Wednesdays have been rough.
DL 905 arrived on time 90% of the time on Mondays and just 73% on Wednesdays. That gap is worth planning around.
A bit behind the SLC–ATL route.
DL 905 arrived on time 81% of the time, versus 87% across the SLC–ATL route.
It basically never cancels.
Out of 363 scheduled flights, only 0.3% were cancelled.
Slipping a little lately.
DL 905 arrived on time 80% of the time over the last three months in the data, compared with 86% in the three months before that.
The breakdown
- Mon90%(51 flights)
- Tue85%(52 flights)
- Wed73%(52 flights)
- Thu80%(51 flights)
- Fri82%(51 flights)
- Sat77%(52 flights)
- Sun81%(53 flights)
84%
May
Jun 67% → May 84% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 67% | 30 |
| July 2025 | 65% | 31 |
| August 2025 | 74% | 31 |
| September 2025 | 90% | 30 |
| October 2025 | 94% | 31 |
| November 2025 | 89% | 28 |
| December 2025 | 84% | 31 |
| January 2026 | 81% | 31 |
| February 2026 | 93% | 28 |
| March 2026 | 70% | 30 |
| April 2026 | 87% | 30 |
| May 2026 | 84% | 31 |
- Departures on time
- 76%
- Diverted
- 0%
- Flights flown
- 362
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 363 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.