How often are SLC to SJC flights on time?

Flights from Salt Lake City (SLC) to San Jose (SJC) arrive on time 89% of the time across 11,612 flights of official data.

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

Delta Air Lines has the best on-time record on this route at 90% across 9,882 flights.

Route reliability

Flights from Salt Lake City to San Jose arrive on time 89% of the time across 11,612 flights. Here’s how each airline really performs.

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On-time rate

11,612 flights

Airline	On-time	Flights
Delta Air Lines	90%	9,882
Southwest Airlines	85%	1,730

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

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