Pasco/Kennewick/Richland (PSC) to San Francisco (SFO): On-Time Performance
Data through July 2026
When you fly PSC to SFO matters as much as anything else about the booking: the route swung from 95% on-time in June 2025 to just 24% in June 2026. Across the full period the route averages 78% on-time against a national 78%.
- On-time
- 78%
- arrived <15 min late
- Avg delay
- 18 min
- completed flights
- Cancelled
- 0.1%
- Flights/day
- 1.6
- last 12 months
- Duration
- 2h 13m
- scheduled
- Distance
- 620 mi
Monthly on-time trend
Best time to fly from PSC to SFO
Aim for departures around 3 p.m. (94% on-time); avoid 7 a.m. departures (55%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 78% | 25 min |
| Tuesdaybest | 82% | 14 min |
| Wednesday | 80% | 16 min |
| Thursday | 73% | 18 min |
| Friday | 75% | 17 min |
| Saturday | 80% | 22 min |
| Sunday | 80% | 15 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft20%
- Airline operations38%
- National airspace system35%
- Weather7%
Frequently asked questions
- How often are flights from PSC to SFO delayed?
- 22% of PSC–SFO 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 18 minutes.
- What is the best time of day to fly from PSC to SFO?
- Departures around 3 p.m. have the best record (94% on-time), while departures around 7 a.m. have the worst (55%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from PSC to SFO?
- The scheduled PSC–SFO flight time averages 2h 13m over 620 miles. Actual arrival times vary — flights on this route land 15+ minutes late 22% of the time.
- How often are PSC to SFO flights cancelled?
- 0.1% 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 PSC to SFO?
- June 2026 was the roughest month in this dataset, with only 24% of arrivals on time. The best was June 2025 at 95%. If your dates are flexible, that 71-point gap is worth planning around.
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Based on 1,315 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.