ATL to SLC flight delays & on-time performance
Nonstop flights from Hartsfield Jackson Atlanta International Airport to Salt Lake City International Airport · 1,590 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ATL or SLC right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Atlanta (ATL) to Salt Lake City (SLC) arrived on time 83% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.5% were cancelled, and 5% arrived an hour or more late.
- Departures scheduled around 7am did best (94% on time); around 10pm did worst (71%).
- Wednesday was the most reliable day to fly (89% on time) and Sunday the least (80%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (59%).
Which airline is most on time from ATL to SLC?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Delta Air Lines | 83% | 0.5% | 11 min | 5.3% | 2,958 |
| Frontier Airlines | 67% | 0.0% | 23 min | 33.3% | 6 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am94%96 flights
- 8am87%284 flights
- 9am88%93 flights
- 10am91%283 flights
- 11am88%349 flights
- 1pm86%325 flights
- 2pm81%102 flights
- 3pm80%302 flights
- 5pm81%350 flights
- 6pm76%38 flights
- 7pm75%334 flights
- 9pm76%205 flights
- 10pm71%161 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday81%0.2% cancelled
- Tuesday85%0.2% cancelled
- Wednesday89%0.0% cancelled
- Thursday83%0.0% cancelled
- Friday81%0.7% cancelled
- Saturday81%0.7% cancelled
- Sunday80%1.4% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)59%
- Late-arriving aircraft21%
- Air traffic control & airport congestion15%
- Extreme weather5%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather57%
- Airline (crew, maintenance, cleaning, fueling)43%
- Air traffic control & airport congestion0%
- Security0%
ATL to SLC: common questions
- How often are ATL to SLC flights on time?
- 83% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Atlanta to Salt Lake City cancelled?
- 0.5% of scheduled flights were cancelled (14 of 2,964).
- How long are typical delays?
- Across all flights the average arrival delay was 12 min (early arrivals count as zero). Flights that were late arrived 61 min behind schedule on average, and 5.4% of flights were an hour or more late.
- How long is taxi time at ATL?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SLC to ATL — 87% on time
More flights from Atlanta
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: ATL → SLC, nonstop flights by US airlines that report to the DOT. How we calculate this.