Which airline is most reliable for ATL (Atlanta) to AUS (Austin)?

The most reliable airline on the ATL to AUS route is Southwest Airlines, with an on-time arrival rate of 82%.

How often are flights delayed from ATL to AUS?

About 22% of flights from ATL to AUS experience delays. 78% arrive on time.

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

When flights from ATL to AUS are delayed, the average delay is approximately 58 minutes.

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

With 78% of ATL to AUS flights arriving on time and an average delay of 58 minutes when late, a connection under 60 minutes at AUS is risky. We recommend at least 75-90 minutes for domestic connections after this route.

ATL → AUS

ATL (Atlanta) to AUS (Austin)

ATL (Atlanta) to AUS (Austin) flights arrive on time 78% of the time. The most reliable airline on this route is Southwest Airlines at 82%. The average delay is 58 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Source: Bureau of Transportation Statistics. Updated July 2026.

ATL → AUS on-time performance by month

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This route is on time most of the time. About 78% of flights arrive on schedule.

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

Accurate?

Southwest Airlines is significantly more reliable on this route at 82% on time vs Frontier Airlines at 66%.

Airline Comparison

Southwest Airlines leads at 82% on time; Frontier Airlines trails at 66%.

Accurate?

Good to know

Departing from ATL

80% on time

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

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

More about ATL →

Arriving at AUS

79% on time

When flights into AUS are late, the average delay is 69 minutes. Build buffer if you have ground plans.

If connecting at AUS: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.

More about AUS →Connection times at AUS →

Flight cancelled or delayed?

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ATL Airport AUS Airport

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