How often are SJC to SLC flights on time?

Flights from San Jose (SJC) to Salt Lake City (SLC) arrive on time 92% of the time across 11,738 flights of official data.

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

Delta Air Lines has the best on-time record on this route at 93% across 10,024 flights.

Route reliability

Flights from San Jose to Salt Lake City arrive on time 92% of the time across 11,738 flights. Here’s how each airline really performs.

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On-time rate

11,738 flights

Airline	On-time	Flights
Delta Air Lines	93%	10,024
Southwest Airlines	86%	1,714

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

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

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