Best Time to Fly EWR to PDX: On-Time Stats by Hour & Airline
Newark Liberty International → Portland International
Data through July 2026 · Last updated October 18, 2026
899 flights were scheduled from Newark (EWR) to Portland (PDX) in the last 12 months, and 76.8% of those that flew arrived on time, 0.9 points below the US average of 77.6%.
United Airlines was the most punctual of the 2 airlines on the route at 79.2%, while Alaska Airlines trailed at 73.5%.
September has been the best month (91% on time) and Sunday the weakest day of the week (74%).
1.8% of flights were cancelled, versus 1.8% nationally.
EWR 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 |
|---|---|---|---|---|
| United Airlines | 79.2% | 63 min | 1.9% | 520 |
| Alaska Airlines | 73.5% | 72 min | 1.6% | 379 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly EWR to PDX
On-time arrival % by scheduled departure hour (local time), 1,692 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 5 | |
| 6am–7am | 93.8% | 0.9% | 326 |
| 2pm–3pm | Limited data | 1 | |
| 4pm–5pm | 75.0% | 0.0% | 124 |
| 5pm–6pm | 73.0% | 2.1% | 728 |
| 6pm–7pm | 73.9% | 2.1% | 475 |
| 7pm–8pm | 48.4% | 6.1% | 33 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on EWR 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 | 26 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 58.3% | -21.4 pts | 0.0% | 60 |
| Summer peak (Jun 15 - Aug 15) | 71.3% | -8.4 pts | 3.7% | 406 |
| All other days | 79.7% | — | 1.2% | 1,200 |
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).