Best Time to Fly PSP to PDX: On-Time Stats by Hour & Airline
Palm Springs International → Portland International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 94.3% of Palm Springs (PSP) to Portland (PDX) flights arrived on time (737 scheduled flights). That is 16.7 points above the national average of 77.6%.
Among 2 airlines, SkyWest Airlines led with 95.6% on time and Alaska Airlines was last with 93.8%.
Over 24 months, Monday was the most reliable day (95% on time) and February the worst month (86%).
The cancellation rate was 1.8% (US average 1.8%).
PSP 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 |
|---|---|---|---|---|
| SkyWest Airlines | 95.6% | 99 min | 1.8% | 229 |
| Alaska Airlines | 93.8% | 92 min | 1.8% | 508 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PSP to PDX
On-time arrival % by scheduled departure hour (local time), 1,406 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 96.0% | 1.0% | 479 |
| 8am–9am | 91.5% | 0.0% | 106 |
| 9am–10am | Limited data | 29 | |
| 10am–11am | 94.7% | 2.4% | 212 |
| 11am–12pm | 85.3% | 0.0% | 68 |
| 12pm–1pm | Limited data | 27 | |
| 1pm–2pm | 86.8% | 0.0% | 38 |
| 2pm–3pm | 93.8% | 1.2% | 81 |
| 3pm–4pm | 81.6% | 0.0% | 38 |
| 5pm–6pm | 86.8% | 1.9% | 54 |
| 6pm–7pm | 92.1% | 1.8% | 167 |
| 7pm–8pm | 90.3% | 0.0% | 93 |
| 8pm–9pm | Limited data | 7 | |
| 9pm–10pm | Limited data | 7 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on PSP 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) | 91.2% | -1.2 pts | 0.0% | 34 |
| Christmas & New Year (Dec 20 - Jan 3) | 85.3% | -7.1 pts | 4.2% | 71 |
| Summer peak (Jun 15 - Aug 15) | 96.3% | +4.0 pts | 0.0% | 109 |
| All other days | 92.4% | — | 1.0% | 1,192 |
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).