Which airline is most reliable for ATL (Atlanta) to PIT (Pittsburgh)?

The most reliable airline on the ATL to PIT route is Delta Air Lines, with an on-time arrival rate of 84%.

How often are flights delayed from ATL to PIT?

About 17% of flights from ATL to PIT experience delays. 83% arrive on time.

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

When flights from ATL to PIT are delayed, the average delay is approximately 55 minutes.

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

With 83% of ATL to PIT flights arriving on time and an average delay of 55 minutes when late, a connection under 60 minutes at PIT is risky. We recommend at least 75-90 minutes for domestic connections after this route.

ATL → PIT

ATL (Atlanta) to PIT (Pittsburgh)

ATL (Atlanta) to PIT (Pittsburgh) flights arrive on time 83% of the time. The most reliable airline on this route is Delta Air Lines at 84%. The average delay is 55 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Source: Bureau of Transportation Statistics. Updated October 2026.

ATL → PIT 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 is significantly more reliable on this route at 84% on time vs Frontier Airlines at 45%.

Airline Comparison

Delta Air Lines leads at 84% on time; Frontier Airlines trails at 45%.

Accurate?

Good to know

Departing from ATL

81% on time

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

TSA is currently ~27 min. Best time: 4 AM (about 5 min).

More about ATL →

Arriving at PIT

81% on time

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

If connecting at PIT: TSA is ~19 min right now. Allow at least 60 minutes for a domestic connection.

More about PIT →Connection times at PIT →

Flight cancelled or delayed?

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ATL Airport PIT Airport

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