Best Time to Fly LAX to PDX: On-Time Stats by Hour & Airline
Los Angeles International → Portland International
Data through July 2026 · Last updated October 18, 2026
4,347 flights were scheduled from Los Angeles (LAX) to Portland (PDX) in the last 12 months, and 86.3% of those that flew arrived on time, 8.7 points above the US average of 77.6%.
Among 4 airlines, Alaska Airlines led with 90.0% on time and SkyWest Airlines was last with 75.3%.
Over 24 months, Wednesday was the most reliable day (90% on time) and June the worst month (82%).
The cancellation rate was 0.7% (US average 1.8%).
LAX 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 |
|---|---|---|---|---|
| Alaska Airlines | 90.0% | 50 min | 0.5% | 1,846 |
| Frontier Airlines | 87.1% | 42 min | 0.9% | 219 |
| Delta Air Lines | 86.0% | 73 min | 0.9% | 1,692 |
| SkyWest Airlines | 75.3% | 88 min | 0.3% | 590 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly LAX to PDX
On-time arrival % by scheduled departure hour (local time), 8,995 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 93.8% | 0.4% | 536 |
| 7am–8am | 92.7% | 1.2% | 971 |
| 8am–9am | 88.7% | 1.5% | 269 |
| 9am–10am | 89.8% | 1.2% | 1,027 |
| 10am–11am | 83.2% | 0.8% | 354 |
| 11am–12pm | 88.2% | 0.7% | 453 |
| 12pm–1pm | 87.0% | 0.9% | 333 |
| 1pm–2pm | 89.2% | 0.5% | 652 |
| 2pm–3pm | 86.7% | 0.8% | 743 |
| 3pm–4pm | 88.4% | 1.3% | 157 |
| 4pm–5pm | 89.3% | 0.5% | 567 |
| 5pm–6pm | 88.3% | 0.0% | 435 |
| 6pm–7pm | 84.0% | 0.3% | 752 |
| 7pm–8pm | 82.2% | 0.3% | 637 |
| 8pm–9pm | 77.9% | 0.6% | 675 |
| 9pm–10pm | 80.2% | 0.9% | 434 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on LAX 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) | 85.1% | -3.0 pts | 1.1% | 177 |
| Christmas & New Year (Dec 20 - Jan 3) | 79.1% | -9.0 pts | 0.3% | 370 |
| Summer peak (Jun 15 - Aug 15) | 84.3% | -3.9 pts | 1.6% | 1,571 |
| All other days | 88.2% | — | 0.5% | 6,877 |
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).