Best Time to Fly PSC to DEN: On-Time Stats by Hour & Airline
Tri Cities → Denver International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 89.4% of Pasco/Kennewick/Richland (PSC) to Denver (DEN) flights arrived on time (728 scheduled flights). That is 11.8 points above the national average of 77.6%.
United Airlines was the most punctual of the 2 airlines on the route at 91.1%, while SkyWest Airlines trailed at 87.8%.
June has been the best month (94% on time) and Saturday the weakest day of the week (85%).
0.6% of flights were cancelled, versus 1.8% nationally.
PSC to DEN 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 |
|---|---|---|---|---|
| United Airlines | 91.1% | 92 min | 0.8% | 363 |
| SkyWest Airlines | 87.8% | 82 min | 0.3% | 365 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PSC to DEN
On-time arrival % by scheduled departure hour (local time), 1,457 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 91.4% | 0.7% | 729 |
| 8am–9am | Limited data | 1 | |
| 12pm–1pm | 87.6% | 0.2% | 498 |
| 1pm–2pm | 78.3% | 0.4% | 229 |
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 DEN
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) | Limited data | 26 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 84.5% | -3.1 pts | 1.7% | 60 |
| Summer peak (Jun 15 - Aug 15) | 91.9% | +4.3 pts | 1.2% | 247 |
| All other days | 87.5% | — | 0.3% | 1,124 |
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).