Best Time to Fly PHL to PDX: On-Time Stats by Hour & Airline
Philadelphia International → Portland International
Data through July 2026 · Last updated October 18, 2026
262 flights were scheduled from Philadelphia (PHL) to Portland (PDX) in the last 12 months, and 71.4% of those that flew arrived on time, 6.3 points below the US average of 77.6%.
Among 2 airlines, American Airlines led with 74.0% on time and Alaska Airlines was last with 65.4%.
Over 24 months, Monday was the most reliable day (69% on time) and August the worst month (55%).
The cancellation rate was 2.3% (US average 1.8%).
PHL 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 |
|---|---|---|---|---|
| American Airlines | 74.0% | 82 min | 2.8% | 182 |
| Alaska Airlines | 65.4% | 113 min | 1.2% | 80 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PHL to PDX
On-time arrival % by scheduled departure hour (local time), 348 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | 92.5% | 0.0% | 67 |
| 4pm–5pm | Limited data | 28 | |
| 5pm–6pm | 52.9% | 1.9% | 53 |
| 6pm–7pm | 42.9% | 5.1% | 59 |
| 7pm–8pm | 47.7% | 5.8% | 69 |
| 8pm–9pm | 71.0% | 4.2% | 72 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on PHL to PDX
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 8 | ||
| Summer peak (Jun 15 - Aug 15) | 60.9% | -12.7 pts | 3.7% | 215 |
| All other days | 73.5% | — | 2.4% | 125 |
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).