Best Time to Fly PSC to SLC: On-Time Stats by Hour & Airline
Tri Cities → Salt Lake City International
Data through July 2026 · Last updated October 18, 2026
1,178 flights were scheduled from Pasco/Kennewick/Richland (PSC) to Salt Lake City (SLC) in the last 12 months, and 93.8% of those that flew arrived on time, 16.2 points above the US average of 77.6%.
Delta Air Lines was the most punctual of the 2 airlines on the route at 94.8%, while SkyWest Airlines trailed at 93.4%.
June has been the best month (97% on time) and Saturday the weakest day of the week (90%).
0.2% of flights were cancelled, versus 1.8% nationally.
PSC to SLC 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 |
|---|---|---|---|---|
| Delta Air Lines | 94.8% | 226 min | 0.6% | 349 |
| SkyWest Airlines | 93.4% | 76 min | 0.0% | 829 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PSC to SLC
On-time arrival % by scheduled departure hour (local time), 2,331 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 92.6% | 0.4% | 272 |
| 6am–7am | 96.0% | 0.4% | 458 |
| 9am–10am | 96.5% | 0.0% | 144 |
| 10am–11am | 97.9% | 0.0% | 48 |
| 11am–12pm | 94.6% | 0.0% | 278 |
| 12pm–1pm | 92.9% | 0.0% | 367 |
| 1pm–2pm | 96.3% | 0.0% | 54 |
| 2pm–3pm | 93.5% | 0.0% | 31 |
| 4pm–5pm | Limited data | 12 | |
| 5pm–6pm | 88.1% | 0.0% | 667 |
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 SLC
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) | 95.0% | +2.5 pts | 0.0% | 40 |
| Christmas & New Year (Dec 20 - Jan 3) | 95.1% | +2.6 pts | 0.0% | 82 |
| Summer peak (Jun 15 - Aug 15) | 93.0% | +0.4 pts | 0.4% | 473 |
| All other days | 92.5% | — | 0.1% | 1,736 |
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).