Best Time to Fly SJC to SLC: On-Time Stats by Hour & Airline
Norman Y. Mineta San Jose International → Salt Lake City International
Data through July 2026 · Last updated October 18, 2026
1,801 flights were scheduled from San Jose (SJC) to Salt Lake City (SLC) in the last 12 months, and 92.1% of those that flew arrived on time, 14.5 points above the US average of 77.6%.
SkyWest Airlines was the most punctual of the 3 airlines on the route at 94.4%, while Southwest Airlines trailed at 80.6%.
January has been the best month (96% on time) and Sunday the weakest day of the week (89%).
0.4% of flights were cancelled, versus 1.8% nationally.
SJC 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 |
|---|---|---|---|---|
| SkyWest Airlines | 94.4% | 84 min | 0.1% | 696 |
| Delta Air Lines | 93.0% | 101 min | 0.7% | 893 |
| Southwest Airlines | 80.6% | 55 min | 0.5% | 212 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SJC to SLC
On-time arrival % by scheduled departure hour (local time), 3,637 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 96.0% | 1.0% | 480 |
| 6am–7am | 90.8% | 0.4% | 250 |
| 8am–9am | Limited data | 2 | |
| 9am–10am | 94.7% | 0.2% | 605 |
| 10am–11am | 91.3% | 0.0% | 242 |
| 11am–12pm | 94.3% | 0.0% | 35 |
| 12pm–1pm | 94.3% | 0.7% | 141 |
| 1pm–2pm | 89.3% | 0.0% | 693 |
| 2pm–3pm | 78.9% | 0.0% | 71 |
| 3pm–4pm | 72.0% | 0.0% | 75 |
| 4pm–5pm | 92.6% | 0.4% | 231 |
| 5pm–6pm | 93.6% | 0.0% | 515 |
| 7pm–8pm | 90.9% | 0.0% | 297 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SJC 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) | 93.3% | +0.8 pts | 0.0% | 75 |
| Christmas & New Year (Dec 20 - Jan 3) | 92.4% | -0.1 pts | 0.8% | 133 |
| Summer peak (Jun 15 - Aug 15) | 89.2% | -3.3 pts | 0.1% | 688 |
| All other days | 92.5% | — | 0.3% | 2,741 |
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).