Which airline is most reliable for ATL (Atlanta) to PHX (Phoenix)?

The most reliable airline on the ATL to PHX route is Southwest Airlines, with an on-time arrival rate of 79%.

How often are flights delayed from ATL to PHX?

About 23% of flights from ATL to PHX experience delays. 77% arrive on time.

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

When flights from ATL to PHX are delayed, the average delay is approximately 68 minutes.

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

With 77% of ATL to PHX flights arriving on time and an average delay of 68 minutes when late, a connection under 60 minutes at PHX is risky. We recommend at least 75-90 minutes for domestic connections after this route.

ATL → PHX

ATL (Atlanta) to PHX (Phoenix)

ATL (Atlanta) to PHX (Phoenix) flights arrive on time 77% of the time. The most reliable airline on this route is Southwest Airlines at 79%. The average delay is 68 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Source: Bureau of Transportation Statistics. Updated April 2026.

ATL → PHX on-time performance by month

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This route is on time most of the time. About 77% 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 79% on time vs Frontier Airlines at 64%.

Airline Comparison

Southwest Airlines leads at 79% on time; Frontier Airlines trails at 64%.

Accurate?

Good to know

Departing from ATL

83% on time

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

TSA is currently ~29 min. Best time: 4 AM (about 5 min).

More about ATL →

Arriving at PHX

82% on time

When flights into PHX are late, the average delay is 67 minutes. Build buffer if you have ground plans.

If connecting at PHX: TSA is ~15 min right now. Allow at least 60 minutes for a domestic connection.

More about PHX →Connection times at PHX →

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