Best Time to Fly PDX to EWR: On-Time Stats by Hour & Airline
Portland International → Newark Liberty International
Data through July 2026 · Last updated October 18, 2026
899 flights were scheduled from Portland (PDX) to Newark (EWR) in the last 12 months, and 83.8% of those that flew arrived on time, 6.2 points above the US average of 77.6%.
Alaska Airlines was the most punctual of the 2 airlines on the route at 84.6%, while United Airlines trailed at 83.2%.
February has been the best month (92% on time) and Saturday the weakest day of the week (76%).
1.9% of flights were cancelled, versus 1.8% nationally.
PDX to EWR 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 | 84.6% | 76 min | 1.9% | 379 |
| United Airlines | 83.2% | 72 min | 1.9% | 520 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PDX to EWR
On-time arrival % by scheduled departure hour (local time), 1,692 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 80.0% | 2.6% | 151 |
| 8am–9am | 85.1% | 1.1% | 88 |
| 9am–10am | 74.6% | 1.8% | 278 |
| 10am–11am | 82.5% | 1.8% | 394 |
| 12pm–1pm | Limited data | 3 | |
| 9pm–10pm | 89.5% | 0.0% | 105 |
| 10pm–11pm | 84.5% | 1.6% | 485 |
| 11pm–12am | 85.8% | 2.7% | 188 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on PDX to EWR
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) | 85.0% | +0.8 pts | 0.0% | 60 |
| Summer peak (Jun 15 - Aug 15) | 76.1% | -8.2 pts | 3.5% | 406 |
| All other days | 84.2% | — | 1.3% | 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).