How often are ATL to SLC flights on time?

Flights from Atlanta (ATL) to Salt Lake City (SLC) arrive on time 88% of the time across 19,431 flights of official data.

Which airline is most reliable on the ATL to SLC route?

Delta Air Lines has the best on-time record on this route at 88% across 19,223 flights.

Route reliability

Flights from Atlanta to Salt Lake City arrive on time 88% of the time across 19,431 flights. Here’s how each airline really performs.

0.0

On-time rate

19,431 flights

Airline	On-time	Flights
Delta Air Lines	88%	19,223
Frontier Airlines	78%	208

On-time = arrived within 15 minutes of schedule, per BTS TranStats. Compare the reverse leg SLC → ATL.

How to Pick a Reliable Flight (Not Just the Cheapest)

A practical checklist for booking the flight that gets you there — not just the cheap one.

Nonstop vs. Connecting Flights: The Reliability Trade-off

A stop multiplies the ways a trip can break. When it's worth it — and how to de-risk it.

Do Morning Flights Really Have Fewer Delays?

Yes — and there's a clear reason. How delays snowball through the day.

Are Some Airlines Really More Reliable Than Others?

The reliability gap between airlines is real — here's what actually drives it.

Score real ATL–SLC flights on reliability, weather, and connection safety — not just price.

Opens a partner site; we may earn a commission if you book there. It's a general fare search — nothing on it is scored.