Best Time to Fly SLC to SJC: On-Time Stats by Hour & Airline
Salt Lake City International → Norman Y. Mineta San Jose International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 87.0% of Salt Lake City (SLC) to San Jose (SJC) flights arrived on time (1,803 scheduled flights). That is 9.4 points above the national average of 77.6%.
SkyWest Airlines was the most punctual of the 3 airlines on the route at 92.5%, while Southwest Airlines trailed at 75.7%.
September has been the best month (91% on time) and Sunday the weakest day of the week (84%).
0.4% of flights were cancelled, versus 1.8% nationally.
SLC to SJC 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 | 92.5% | 69 min | 0.1% | 698 |
| Delta Air Lines | 85.4% | 69 min | 0.5% | 893 |
| Southwest Airlines | 75.7% | 46 min | 0.9% | 212 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SLC to SJC
On-time arrival % by scheduled departure hour (local time), 3,638 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 96.2% | 0.2% | 401 |
| 8am–9am | 91.0% | 0.0% | 301 |
| 9am–10am | Limited data | 1 | |
| 10am–11am | 81.2% | 0.0% | 64 |
| 11am–12pm | 87.7% | 0.1% | 740 |
| 12pm–1pm | 84.8% | 0.0% | 33 |
| 1pm–2pm | 79.0% | 2.0% | 102 |
| 2pm–3pm | 80.0% | 0.0% | 35 |
| 3pm–4pm | 89.0% | 0.1% | 764 |
| 4pm–5pm | 77.5% | 0.0% | 40 |
| 5pm–6pm | 81.9% | 0.0% | 392 |
| 6pm–7pm | Limited data | 17 | |
| 7pm–8pm | Limited data | 22 | |
| 8pm–9pm | 79.2% | 2.0% | 49 |
| 9pm–10pm | 88.2% | 0.0% | 102 |
| 10pm–11pm | 82.8% | 0.6% | 544 |
| 11pm–12am | 87.1% | 0.0% | 31 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SLC to SJC
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) | 90.5% | +2.6 pts | 1.3% | 75 |
| Christmas & New Year (Dec 20 - Jan 3) | 88.0% | +0.0 pts | 0.0% | 134 |
| Summer peak (Jun 15 - Aug 15) | 83.8% | -4.1 pts | 0.3% | 688 |
| All other days | 87.9% | — | 0.2% | 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).