ATL (Atlanta) to PIT (Pittsburgh) flights arrive on time 83% of the time. The most reliable airline on this route is Southwest Airlines at 86%. The average delay is 57 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated March 2026.ATL → PIT
ATL (Atlanta) to PIT (Pittsburgh)
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?
Southwest Airlines is significantly more reliable on this route at 86% on time vs Frontier Airlines at 45%.
Airline Comparison
Southwest Airlines leads at 86% on time; Frontier Airlines trails at 45%.
Accurate?
Good to know
Departing from ATL
83% on timeExpect ~16 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).
Arriving at PIT
82% on timeWhen flights into PIT are late, the average delay is 69 minutes. Build buffer if you have ground plans.
If connecting at PIT: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated March 2026. Source: Bureau of Transportation Statistics.