Kona (KOA) to Portland (PDX): On-Time Performance
Data through July 2026
When you fly KOA to PDX matters as much as anything else about the booking: the route swung from 97% on-time in March 2025 to just 39% in July 2025. Across the full period the route averages 79% on-time against a national 78%.
- On-time
- 79%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 0.0%
- Flights/day
- 1.0
- last 12 months
- Duration
- 5h 37m
- scheduled
- Distance
- 2,607 mi
Monthly on-time trend
Best time to fly from KOA to PDX
Aim for departures around 3 p.m. (94% on-time); avoid 12 p.m. departures (67%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 74% | 12 min |
| Tuesdaybest | 86% | 7 min |
| Wednesday | 80% | 11 min |
| Thursday | 76% | 16 min |
| Friday | 80% | 12 min |
| Saturday | 83% | 9 min |
| Sunday | 75% | 13 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft60%
- Airline operations20%
- National airspace system17%
- Weather2%
- Security1%
Frequently asked questions
- How often are flights from KOA to PDX delayed?
- 21% of KOA–PDX flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 12 minutes.
- What is the best time of day to fly from KOA to PDX?
- Departures around 3 p.m. have the best record (94% on-time), while departures around 12 p.m. have the worst (67%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from KOA to PDX?
- The scheduled KOA–PDX flight time averages 5h 37m over 2,607 miles. Actual arrival times vary — flights on this route land 15+ minutes late 21% of the time.
- How often are KOA to PDX flights cancelled?
- 0% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from KOA to PDX?
- July 2025 was the roughest month in this dataset, with only 39% of arrivals on time. The best was March 2025 at 97%. If your dates are flexible, that 58-point gap is worth planning around.
Explore related pages
More routes from KOA
Other ways to fly to Portland (PDX)
Related guides
Based on 738 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.