Newark (EWR) to Portland (PDX): On-Time Performance
Data through May 2026
The calendar drives reliability on EWR–PDX. September 2024 flights landed on schedule 94% of the time, but December 2025 dropped to 50% — a gap of 44 points. Across the full period the route averages 75% on-time against a national 78%. Morning departures also hold up better than evening ones (94% vs 71%), which matters most in the rough months.
- On-time
- 75%
- arrived <15 min late
- Avg delay
- 19 min
- completed flights
- Cancelled
- 1.8%
- Flights/day
- 2.3
- last 12 months
- Duration
- 6h 5m
- scheduled
- Distance
- 2,434 mi
Best airline from EWR to PDX
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| United Airlinesmost reliable | 78% | 15 min | 1.5% | 1,009 |
| Alaska Airlines | 71% | 25 min | 2.2% | 633 |
Monthly on-time trend
Best time to fly from EWR to PDX
Aim for departures around 6 a.m. (94% on-time); avoid 7 p.m. departures (44%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 19 min |
| Tuesdaybest | 80% | 13 min |
| Wednesday | 74% | 21 min |
| Thursday | 74% | 18 min |
| Friday | 74% | 17 min |
| Saturday | 74% | 23 min |
| Sunday | 74% | 22 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft46%
- Airline operations16%
- National airspace system29%
- Weather9%
Frequently asked questions
- How often are flights from EWR to PDX delayed?
- 25% of EWR–PDX flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 19 minutes.
- Which airline is most reliable from EWR to PDX?
- United Airlines has the best on-time record on this route at 78%, based on 1,009 flights. 2 airlines flew EWR–PDX frequently enough to compare in this period.
- What is the best time of day to fly from EWR to PDX?
- Departures around 6 a.m. have the best record (94% on-time), while departures around 7 p.m. have the worst (44%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from EWR to PDX?
- The scheduled EWR–PDX flight time averages 6h 5m over 2,434 miles. Actual arrival times vary — flights on this route land 15+ minutes late 25% of the time.
- How often are EWR to PDX flights cancelled?
- 1.8% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, slightly above the national rate of 1.6%.
- What is the worst month to fly from EWR to PDX?
- December 2025 was the roughest month in this dataset, with only 50% of arrivals on time. The best was September 2024 at 94%. If your dates are flexible, that 44-point gap is worth planning around.
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Based on 1,642 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.