FlightRecord

Nashville (BNA) to Portland (PWM): On-Time Performance

Data through May 2026

Nashville (BNA) to Portland (PWM) is a thinner route than most in this dataset — 160 departures over the past year, roughly 3 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 84% arrived on time, comfortably above the national average of 78%.

On-time
84%
arrived <15 min late
Avg delay
11 min
completed flights
Cancelled
0.0%
Flights/day
0.44
last 12 months
Duration
2h 33m
scheduled
Distance
1,010 mi

Monthly on-time trend

Monthly on-time percentage for BNA to PWM flights50%75%100%June 2024: 100% on-time (8 flights)100Jun 2024July 2024: 100% on-time (8 flights)100August 2024: 97% on-time (30 flights)97September 2024: 100% on-time (29 flights)100Sep 2024October 2024: 71% on-time (31 flights)71November 2024: 100% on-time (2 flights)100April 2025: 100% on-time (3 flights)100Apr 2025May 2025: 50% on-time (4 flights)50June 2025: 44% on-time (27 flights)44July 2025: 65% on-time (31 flights)65Jul 2025August 2025: 94% on-time (32 flights)94September 2025: 93% on-time (30 flights)93October 2025: 94% on-time (31 flights)94Oct 2025November 2025: 100% on-time (1 flights)100April 2026: 100% on-time (3 flights)100May 2026: 100% on-time (5 flights)100May 2026

Best time to fly from BNA to PWM

Aim for departures around 9 a.m. (96% on-time); avoid 1 p.m. departures (70%).

On-time percentage by scheduled departure hour, BNA to PWM9 a.m.: 96% on-time (48 flights)910 a.m.: 93% on-time (44 flights)1011 a.m.: 83% on-time (40 flights)1112 p.m.: 84% on-time (51 flights)121 p.m.: 70% on-time (79 flights)13scheduled departure hour

By day of week

DayOn-timeAvg delay
Monday80%20 min
Tuesdaybest94%5 min
Wednesday79%9 min
Thursday74%11 min
Friday77%15 min
Saturday84%8 min
Sunday93%9 min

What causes delays on this route

Share of total delay minutes by cause, as reported by carriers to the US DOT.

  • Late-arriving aircraft54%
  • Airline operations16%
  • National airspace system17%
  • Weather13%

Frequently asked questions

How often are flights from BNA to PWM delayed?
16% of BNA–PWM flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 11 minutes.
What is the best time of day to fly from BNA to PWM?
Departures around 9 a.m. have the best record (96% on-time), while departures around 1 p.m. have the worst (70%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
How long is the flight from BNA to PWM?
The scheduled BNA–PWM flight time averages 2h 33m over 1,010 miles. Actual arrival times vary — flights on this route land 15+ minutes late 16% of the time.
How often are BNA to PWM flights cancelled?
0% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
What day of the week is most reliable for BNA to PWM?
Tuesday flights have the best record at 94% on-time. Day-of-week differences on this route are meaningful — Thursday trails at 74%.

Based on 275 flights, 2024-062026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.