MDT (Harrisburg) to ATL (Atlanta) flights arrive on time 85% of the time. The most reliable airline on this route is Delta Air Lines at 85%. The average delay is 91 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated August 2026.MDT → ATL
MDT (Harrisburg) to ATL (Atlanta)
MDT → ATL on-time performance by month
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
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?
Delta Air Lines is significantly more reliable on this route at 85% on time vs Endeavor Air at 68%.
Airline Comparison
Delta Air Lines leads at 85% on time; Endeavor Air trails at 68%.
Accurate?
Good to know
Departing from MDT
78% on timeExpect ~18 min sitting on the taxiway after your gate pushes back. MDT has long runway queues.
TSA is currently ~6 min. Best time: 4 AM (about 5 min).
Arriving at ATL
80% on timeWhen flights into ATL are late, the average delay is 72 minutes. Build buffer if you have ground plans.
If connecting at ATL: TSA is ~20 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what Delta Air Lines owes you — refund rights, action plan, complaint email. Free.
Flying out of MDT? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Know someone flying soon?
Send them the link — delay data, TSA waits, weather, all free.
Data last updated August 2026. Source: Bureau of Transportation Statistics.