Atlanta (ATL) to Salt Lake City (SLC): On-Time Performance
Data through July 2026
Atlanta (ATL) to Salt Lake City (SLC) effectively runs on two schedules. In November 2024, 92% of arrivals were on time; in July 2024 that fell to 68% — a 24-point seasonal swing. Across the full period the route averages 82% on-time against a national 78%. Morning departures also hold up better than evening ones (89% vs 75%), which matters most in the rough months.
- On-time
- 82%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 0.7%
- Flights/day
- 8.1
- last 12 months
- Duration
- 4h 10m
- scheduled
- Distance
- 1,590 mi
Monthly on-time trend
Best time to fly from ATL to SLC
Aim for departures around 7 a.m. (93% on-time); avoid 8 p.m. departures (61%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 82% | 13 min |
| Tuesdaybest | 86% | 9 min |
| Wednesday | 85% | 8 min |
| Thursday | 83% | 13 min |
| Friday | 80% | 14 min |
| Saturday | 81% | 14 min |
| Sunday | 78% | 15 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft22%
- Airline operations58%
- National airspace system13%
- Weather7%
Frequently asked questions
- How often are flights from ATL to SLC delayed?
- 18% of ATL–SLC flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 12 minutes.
- What is the best time of day to fly from ATL to SLC?
- Departures around 7 a.m. have the best record (93% on-time), while departures around 8 p.m. have the worst (61%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ATL to SLC?
- The scheduled ATL–SLC flight time averages 4h 10m over 1,590 miles. Actual arrival times vary — flights on this route land 15+ minutes late 18% of the time.
- How often are ATL to SLC flights cancelled?
- 0.7% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from ATL to SLC?
- July 2024 was the roughest month in this dataset, with only 68% of arrivals on time. The best was November 2024 at 92%. If your dates are flexible, that 24-point gap is worth planning around.
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Based on 6,152 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.