Best Time to Fly BOS to PDX: On-Time Stats by Hour & Airline
Logan International → Portland International
Data through July 2026 · Last updated October 18, 2026
671 flights were scheduled from Boston (BOS) to Portland (PDX) in the last 12 months, and 77.7% of those that flew arrived on time, in line with the US average of 77.6%.
Among 2 airlines, Alaska Airlines led with 78.1% on time and JetBlue was last with 75.8%.
Over 24 months, Wednesday was the most reliable day (87% on time) and March the worst month (57%).
The cancellation rate was 1.9% (US average 1.8%).
BOS 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 | 78.1% | 51 min | 1.3% | 533 |
| JetBlue | 75.8% | 75 min | 4.3% | 138 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BOS to PDX
On-time arrival % by scheduled departure hour (local time), 1,346 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 93.6% | 0.4% | 269 |
| 7am–8am | 91.4% | 0.0% | 81 |
| 8am–9am | Limited data | 19 | |
| 9am–10am | 73.9% | 4.2% | 48 |
| 10am–11am | 91.0% | 0.0% | 67 |
| 4pm–5pm | 68.1% | 3.3% | 120 |
| 5pm–6pm | 71.2% | 1.0% | 305 |
| 6pm–7pm | 58.2% | 1.2% | 167 |
| 7pm–8pm | 75.4% | 2.5% | 242 |
| 8pm–9pm | Limited data | 28 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BOS 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 | 24 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 62.0% | -18.1 pts | 2.0% | 51 |
| Summer peak (Jun 15 - Aug 15) | 73.5% | -6.5 pts | 2.2% | 403 |
| All other days | 80.1% | — | 1.0% | 868 |
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).