FlightRecord

Pasco/Kennewick/Richland (PSC) to San Francisco (SFO): On-Time Performance

Data through May 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 44% in May 2026. Across the full period the route averages 83% on-time against a national 78%.

On-time
83%
arrived <15 min late
Avg delay
15 min
completed flights
Cancelled
0.1%
Flights/day
1.7
last 12 months
Duration
2h 13m
scheduled
Distance
620 mi

Monthly on-time trend

Monthly on-time percentage for PSC to SFO flights50%75%100%July 2024: 94% on-time (31 flights)94Jul 2024August 2024: 84% on-time (31 flights)84September 2024: 84% on-time (57 flights)84October 2024: 90% on-time (62 flights)90Oct 2024November 2024: 83% on-time (59 flights)83December 2024: 75% on-time (61 flights)75January 2025: 84% on-time (62 flights)84Jan 2025February 2025: 75% on-time (57 flights)75March 2025: 88% on-time (59 flights)88April 2025: 80% on-time (59 flights)80Apr 2025May 2025: 82% on-time (60 flights)82June 2025: 95% on-time (60 flights)95July 2025: 82% on-time (61 flights)82Jul 2025August 2025: 82% on-time (56 flights)82September 2025: 94% on-time (49 flights)94October 2025: 81% on-time (62 flights)81Oct 2025November 2025: 88% on-time (59 flights)88December 2025: 87% on-time (62 flights)87January 2026: 78% on-time (49 flights)78Jan 2026February 2026: 80% on-time (46 flights)80March 2026: 94% on-time (35 flights)94April 2026: 63% on-time (30 flights)63Apr 2026May 2026: 44% on-time (41 flights)44

Best time to fly from PSC to SFO

Aim for departures around 3 p.m. (94% on-time); avoid 7 a.m. departures (74%).

On-time percentage by scheduled departure hour, PSC to SFO6 a.m.: 85% on-time (478 flights)67 a.m.: 74% on-time (58 flights)71 p.m.: 80% on-time (555 flights)132 p.m.: 89% on-time (36 flights)143 p.m.: 94% on-time (80 flights)15scheduled departure hour

By day of week

DayOn-timeAvg delay
Monday83%23 min
Tuesdaybest87%6 min
Wednesday84%12 min
Thursday80%12 min
Friday79%13 min
Saturday82%23 min
Sunday84%14 min

What causes delays on this route

Share of total delay minutes by cause, as reported by carriers to the US DOT.

  • Late-arriving aircraft14%
  • Airline operations49%
  • National airspace system30%
  • Weather7%

Frequently asked questions

How often are flights from PSC to SFO delayed?
18% of PSC–SFO 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 15 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 (74%). 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 18% of the time.
How often are PSC to SFO flights cancelled?
0.1% 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 PSC to SFO?
May 2026 was the roughest month in this dataset, with only 44% of arrivals on time. The best was June 2025 at 95%. If your dates are flexible, that 51-point gap is worth planning around.

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Based on 1,208 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.