Best Time to Fly BNA to PDX: On-Time Stats by Hour & Airline
Nashville International → Portland International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 72.2% of Nashville (BNA) to Portland (PDX) flights arrived on time (318 scheduled flights). That is 5.4 points below the national average of 77.6%.
Alaska Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Wednesday was the most reliable day (85% on time) and June the worst month (69%).
The cancellation rate was 0.3% (US average 1.8%).
BNA to PDX on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Alaska Airlines | 72.2% | 48 min | 0.3% | 317 |
| Southwest Airlines | Limited data | 1 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BNA to PDX
On-time arrival % by scheduled departure hour (local time), 690 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 4pm–5pm | 79.6% | 0.0% | 221 |
| 5pm–6pm | 72.5% | 0.4% | 241 |
| 6pm–7pm | 82.8% | 1.4% | 147 |
| 7pm–8pm | 86.8% | 1.3% | 78 |
| 8pm–9pm | Limited data | 3 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BNA to PDX
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 12 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 30 | ||
| Summer peak (Jun 15 - Aug 15) | 76.2% | -4.0 pts | 0.0% | 130 |
| All other days | 80.2% | — | 0.6% | 518 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).