San Francisco (SFO) to Pasco/Kennewick/Richland (PSC): On-Time Performance
Data through May 2026
San Francisco (SFO) to Pasco/Kennewick/Richland (PSC) effectively runs on two schedules. In November 2025, 95% of arrivals were on time; in April 2026 that fell to 60% — a 35-point seasonal swing. Across the full period the route averages 80% on-time against a national 78%. Morning departures also hold up better than evening ones (84% vs 75%), which matters most in the rough months.
- On-time
- 80%
- arrived <15 min late
- Avg delay
- 13 min
- completed flights
- Cancelled
- 0.4%
- Flights/day
- 1.7
- last 12 months
- Duration
- 2h 3m
- scheduled
- Distance
- 620 mi
Monthly on-time trend
Best time to fly from SFO to PSC
Aim for departures around 9 a.m. (91% on-time); avoid 9 p.m. departures (68%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 80% | 13 min |
| Tuesdaybest | 86% | 9 min |
| Wednesday | 78% | 10 min |
| Thursday | 76% | 16 min |
| Friday | 77% | 19 min |
| Saturday | 85% | 11 min |
| Sunday | 81% | 16 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft22%
- Airline operations47%
- National airspace system26%
- Weather5%
Frequently asked questions
- How often are flights from SFO to PSC delayed?
- 20% of SFO–PSC flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 13 minutes.
- What is the best time of day to fly from SFO to PSC?
- Departures around 9 a.m. have the best record (91% on-time), while departures around 9 p.m. have the worst (68%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SFO to PSC?
- The scheduled SFO–PSC flight time averages 2h 3m over 620 miles. Actual arrival times vary — flights on this route land 15+ minutes late 20% of the time.
- How often are SFO to PSC flights cancelled?
- 0.4% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from SFO to PSC?
- April 2026 was the roughest month in this dataset, with only 60% of arrivals on time. The best was November 2025 at 95%. If your dates are flexible, that 35-point gap is worth planning around.
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Based on 1,206 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.