PWM (Portland) to BNA (Nashville) flights arrive on time 74% of the time. The most reliable airline on this route is Southwest Airlines at 74%. The average delay is 59 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated October 2026.PWM → BNA
PWM (Portland) to BNA (Nashville)
PWM → BNA on-time performance by month
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
This route is delayed fairly often. About 74% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
Accurate?
Good to know
Departing from PWM
80% on timeExpect ~19 min sitting on the taxiway after your gate pushes back. PWM has long runway queues.
TSA is currently ~18 min. Best time: 4 AM (about 5 min).
PWM cancels 2.5% of flights — higher than average. Have a backup plan.
Arriving at BNA
79% on timeWhen flights into BNA are late, the average delay is 65 minutes. Build buffer if you have ground plans.
If connecting at BNA: TSA is ~27 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what Southwest Airlines owes you — refund rights, action plan, complaint email. Free.
Flying out of PWM? 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.