BNA to PWM flight delays & on-time performance
Nonstop flights from Nashville International Airport to Portland International Jetport · 1,010 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BNA or PWM right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Nashville (BNA) to Portland (PWM) arrived on time 81% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.6% were cancelled, and 3% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 9am did best (96% on time); around 11am did worst (59%).
- Sunday was the most reliable day to fly (93% on time) and Wednesday the least (71%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (47%).
Which airline is most on time from BNA to PWM?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Southwest Airlines | 81% | 0.6% | 9 min | 2.5% | 160 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 9am96%48 flights
- 11am59%60 flights
- 12pm92%26 flights
- 1pm90%10 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday86%0.0% cancelled
- Tuesday81%0.0% cancelled
- Wednesday71%0.0% cancelled
- Thursday73%0.0% cancelled
- Friday83%0.0% cancelled
- Saturday76%4.5% cancelled
- Sunday93%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)47%
- Late-arriving aircraft32%
- Air traffic control & airport congestion22%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)100%
- Extreme weather0%
- Air traffic control & airport congestion0%
- Security0%
BNA to PWM: common questions
- How often are BNA to PWM flights on time?
- 81% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Nashville to Portland cancelled?
- 0.6% of scheduled flights were cancelled (1 of 160).
- How long are typical delays?
- Across all flights the average arrival delay was 9 min (early arrivals count as zero). Flights that were late arrived 38 min behind schedule on average, and 2.5% of flights were an hour or more late.
- How long is taxi time at BNA?
- Flights on this route spent 14 min taxiing from the gate to takeoff on average.
Related routes
Return trip: PWM to BNA — 73% on time
More flights from Nashville
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: BNA → PWM, nonstop flights by US airlines that report to the DOT. How we calculate this.