ATL (Atlanta) to MDT (Harrisburg) flights arrive on time 85% of the time. The most reliable airline on this route is Endeavor Air at 88%. The average delay is 59 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated May 2026.ATL → MDT
ATL (Atlanta) to MDT (Harrisburg)
ATL → MDT on-time performance by month
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JanFebMarAprMayJunJulAugSepOctNovDec
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This route is usually on time. About 85% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Airlines are roughly equal on this route — Endeavor Air leads slightly at 88% vs Delta Air Lines at 85%.
Airline Comparison
Endeavor Air leads at 88% on time; Delta Air Lines trails at 85%.
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 ~24 min. Best time: 4 AM (about 5 min).
Arriving at MDT
81% on timeWhen flights into MDT are late, the average delay is 77 minutes. Build buffer if you have ground plans.
If connecting at MDT: TSA is ~14 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated May 2026. Source: Bureau of Transportation Statistics.