Which airline is most reliable for SLC (Salt Lake City) to SAN (San Diego)?

The most reliable airline on the SLC to SAN route is Frontier Airlines, with an on-time arrival rate of 97%.

How often are flights delayed from SLC to SAN?

About 18% of flights from SLC to SAN experience delays. 82% arrive on time.

What's the average delay on SLC to SAN flights?

When flights from SLC to SAN are delayed, the average delay is approximately 60 minutes.

Is a short connection safe after a SLC to SAN flight?

With 82% of SLC to SAN flights arriving on time and an average delay of 60 minutes when late, a connection under 60 minutes at SAN is risky. We recommend at least 75-90 minutes for domestic connections after this route.

SLC → SAN

SLC (Salt Lake City) to SAN (San Diego)

SLC (Salt Lake City) to SAN (San Diego) flights arrive on time 82% of the time. The most reliable airline on this route is Frontier Airlines at 97%. The average delay is 60 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Source: Bureau of Transportation Statistics. Updated May 2026.

SLC → SAN on-time performance by month

JanFebMarAprMayJunJulAugSepOctNovDec

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This route is on time most of the time. About 82% of flights arrive on schedule.

Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Accurate?

Frontier Airlines is significantly more reliable on this route at 97% on time vs Southwest Airlines at 76%.

Airline Comparison

Frontier Airlines leads at 97% on time; Southwest Airlines trails at 76%.

Accurate?

Good to know

Departing from SLC

85% on time

Expect ~17 min sitting on the taxiway after your gate pushes back. SLC has long runway queues.

TSA is currently ~12 min. Best time: 4 AM (about 5 min).

More about SLC →

Arriving at SAN

80% on time

When flights into SAN are late, the average delay is 60 minutes. Build buffer if you have ground plans.

If connecting at SAN: TSA is ~12 min right now. Allow at least 60 minutes for a domestic connection.

More about SAN →Connection times at SAN →

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SLC Airport SAN Airport

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Data last updated May 2026. Source: Bureau of Transportation Statistics.