Route Reliability
Atlanta → Salt Lake City
ATL–SLC · 1,590 miles · Hartsfield–Jackson Atlanta International Airport to Salt Lake City International Airport
- 83%
- Arrive within 15 minutes
- 3 min
- Average arrival delay
- 0.4%
- Cancelled
- 2,966
- Flights in the data
Data through May 2026.
Airlines on this route
- Delta Air Lines83% on time · 2,960 flights
- Frontier Airlines67% on time · 6 flights
Too little history on this route to call a winner. We rank airlines only after 100 flights each.
What the data says
Morning flights do better here.
ATL–SLC flights departing between 9 AM–12 PM arrived on time 90% of the time, versus 71% between 9 PM–12 AM.
Monday is the weak spot.
ATL–SLC flights arrived on time 88% of the time on Wednesdays. On Mondays: 80%.
Ticking up lately.
ATL–SLC flights arrived on time 86% of the time over the last three months in the data, compared with 81% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon80%(416 flights)
- Tue84%(418 flights)
- Wed88%(422 flights)
- Thu83%(417 flights)
- Fri82%(415 flights)
- Sat81%(434 flights)
- Sun81%(425 flights)
- 6–9 AM90%(381 flights)
- 9 AM–12 PM90%(710 flights)
- 12–3 PM85%(455 flights)
- 3–6 PM81%(671 flights)
- 6–9 PM74%(369 flights)
- 9 PM–12 AM71%(361 flights)
Jun 71% → May 87% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 71% | 241 |
| July 2025 | 79% | 250 |
| August 2025 | 80% | 247 |
| September 2025 | 91% | 242 |
| October 2025 | 84% | 249 |
| November 2025 | 86% | 239 |
| December 2025 | 80% | 250 |
| January 2026 | 80% | 250 |
| February 2026 | 84% | 230 |
| March 2026 | 83% | 252 |
| April 2026 | 88% | 251 |
| May 2026 | 87% | 246 |
Keep nerding
Based on 2,966 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.