Best Time to Fly PHX to PSC: On-Time Stats by Hour & Airline
Phoenix Sky Harbor International → Tri Cities
Data through July 2026 · Last updated October 18, 2026
693 flights were scheduled from Phoenix (PHX) to Pasco/Kennewick/Richland (PSC) in the last 12 months, and 85.3% of those that flew arrived on time, 7.6 points above the US average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Wednesday was the most reliable day (90% on time) and December the worst month (79%).
The cancellation rate was 0.1% (US average 1.8%).
PHX to PSC 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 | 85.3% | 79 min | 0.1% | 693 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PHX to PSC
On-time arrival % by scheduled departure hour (local time), 1,386 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 10am–11am | 89.2% | 0.0% | 406 |
| 11am–12pm | 85.3% | 0.4% | 233 |
| 12pm–1pm | 81.8% | 0.0% | 88 |
| 2pm–3pm | Limited data | 1 | |
| 4pm–5pm | 80.4% | 0.0% | 51 |
| 5pm–6pm | 91.7% | 0.0% | 192 |
| 6pm–7pm | 84.2% | 0.0% | 204 |
| 7pm–8pm | 86.5% | 0.0% | 37 |
| 8pm–9pm | 78.7% | 0.0% | 169 |
| 10pm–11pm | Limited data | 2 | |
| 11pm–12am | Limited data | 3 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on PHX to PSC
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 | 28 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 83.9% | -2.6 pts | 0.0% | 56 |
| Summer peak (Jun 15 - Aug 15) | 83.5% | -3.1 pts | 0.4% | 231 |
| All other days | 86.5% | — | 0.0% | 1,071 |
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).