Which airline is most reliable for AUS (Austin) to SLC (Salt Lake City)?

The most reliable airline on the AUS to SLC route is Delta Air Lines, with an on-time arrival rate of 86%.

How often are flights delayed from AUS to SLC?

About 17% of flights from AUS to SLC experience delays. 83% arrive on time.

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

When flights from AUS to SLC are delayed, the average delay is approximately 69 minutes.

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

With 83% of AUS to SLC flights arriving on time and an average delay of 69 minutes when late, a connection under 60 minutes at SLC is risky. We recommend at least 75-90 minutes for domestic connections after this route.

AUS → SLC

AUS (Austin) to SLC (Salt Lake City)

AUS (Austin) to SLC (Salt Lake City) flights arrive on time 83% of the time. The most reliable airline on this route is Delta Air Lines at 86%. The average delay is 69 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Source: Bureau of Transportation Statistics. Updated May 2026.

AUS → SLC on-time performance by month

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This route is on time most of the time. About 83% of flights arrive on schedule.

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

Accurate?

Delta Air Lines edges out Southwest Airlines on this route — 86% vs 76% on time.

Airline Comparison

Delta Air Lines leads at 86% on time; Southwest Airlines trails at 76%.

Accurate?

Good to know

Departing from AUS

79% on time

Expect ~16 min sitting on the taxiway after your gate pushes back. AUS has long runway queues.

TSA is currently ~19 min. Best time: 4 AM (about 5 min).

More about AUS →

Arriving at SLC

85% on time

When flights into SLC are late, the average delay is 70 minutes. Build buffer if you have ground plans.

If connecting at SLC: TSA is ~7 min right now. Allow at least 60 minutes for a domestic connection.

More about SLC →Connection times at SLC →

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AUS Airport SLC Airport

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