Pasco/Kennewick/Richland (PSC) to Salt Lake City (SLC): On-Time Performance
Data through July 2026
Pasco/Kennewick/Richland (PSC) to Salt Lake City (SLC) effectively runs on two schedules. In June 2026, 100% of arrivals were on time; in December 2024 that fell to 83% — a 17-point seasonal swing. Across the full period the route averages 93% on-time against a national 78%.
- On-time
- 93%
- arrived <15 min late
- Avg delay
- 8 min
- completed flights
- Cancelled
- 0.1%
- Flights/day
- 3.2
- last 12 months
- Duration
- 1h 44m
- scheduled
- Distance
- 521 mi
Best airline from PSC to SLC
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Linesmost reliable | 94% | 11 min | 0.5% | 627 |
| SkyWest Airlines | 92% | 7 min | 0.0% | 1,795 |
Monthly on-time trend
Best time to fly from PSC to SLC
Aim for departures around 10 a.m. (98% on-time); avoid 5 p.m. departures (88%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 94% | 10 min |
| Tuesday | 92% | 5 min |
| Wednesday | 93% | 5 min |
| Thursday | 91% | 9 min |
| Fridaybest | 96% | 5 min |
| Saturday | 90% | 10 min |
| Sunday | 92% | 11 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft1%
- Airline operations71%
- National airspace system3%
- Weather24%
Frequently asked questions
- How often are flights from PSC to SLC delayed?
- 7% of PSC–SLC 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 8 minutes.
- Which airline is most reliable from PSC to SLC?
- Delta Air Lines has the best on-time record on this route at 94%, based on 627 flights. 2 airlines flew PSC–SLC frequently enough to compare in this period.
- What is the best time of day to fly from PSC to SLC?
- Departures around 10 a.m. have the best record (98% on-time), while departures around 5 p.m. have the worst (88%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from PSC to SLC?
- The scheduled PSC–SLC flight time averages 1h 44m over 521 miles. Actual arrival times vary — flights on this route land 15+ minutes late 7% of the time.
- How often are PSC to SLC 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 SLC?
- December 2024 was the roughest month in this dataset, with only 83% of arrivals on time. The best was June 2026 at 100%. If your dates are flexible, that 17-point gap is worth planning around.
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Based on 2,422 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.