Best Time to Fly PSC to SFO: On-Time Stats by Hour & Airline
Tri Cities → San Francisco International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 71.0% of Pasco/Kennewick/Richland (PSC) to San Francisco (SFO) flights arrived on time (596 scheduled flights). That is 6.6 points below the national average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
March has been the best month (90% on time) and Thursday the weakest day of the week (73%).
0.2% of flights were cancelled, versus 1.8% nationally.
PSC to SFO 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 | 71.0% | 78 min | 0.2% | 596 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PSC to SFO
On-time arrival % by scheduled departure hour (local time), 1,284 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 82.2% | 0.0% | 496 |
| 7am–8am | 54.6% | 0.0% | 86 |
| 9am–10am | Limited data | 1 | |
| 1pm–2pm | 74.6% | 0.2% | 585 |
| 2pm–3pm | 88.9% | 0.0% | 36 |
| 3pm–4pm | 93.8% | 0.0% | 80 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on PSC to SFO
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 | 26 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 71.9% | -8.4 pts | 1.7% | 58 |
| Summer peak (Jun 15 - Aug 15) | 66.4% | -14.0 pts | 0.0% | 217 |
| All other days | 80.3% | — | 0.0% | 983 |
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).