ATL (Atlanta) to PWM (Portland) flights arrive on time 79% of the time. The most reliable airline on this route is Delta Air Lines at 80%. 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 October 2026.ATL → PWM
ATL (Atlanta) to PWM (Portland)
ATL → PWM on-time performance by month
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This route is on time most of the time. About 79% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Accurate?
Good to know
Departing from ATL
81% on timeExpect ~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).
Arriving at PWM
80% on timeWhen flights into PWM are late, the average delay is 77 minutes. Build buffer if you have ground plans.
If connecting at PWM: TSA is ~18 min right now. Allow at least 60 minutes for a domestic connection.
PWM has a 2.5% cancellation rate — keep the airline app handy for rebooking.
Flight cancelled or delayed?
Check what Delta Air Lines owes you — refund rights, action plan, complaint email. Free.
Flying out of ATL? 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 October 2026. Source: Bureau of Transportation Statistics.