Salt Lake City (SLC) to San Jose (SJC): On-Time Performance
Data through July 2026
Your airline choice is the single biggest lever on SLC–SJC. SkyWest Airlines arrives on time 92% of the time; Southwest Airlines trails at 81% — a 12-point spread on the exact same city pair. The route as a whole runs 87% on-time.
- On-time
- 87%
- arrived <15 min late
- Avg delay
- 8 min
- completed flights
- Cancelled
- 0.4%
- Flights/day
- 4.9
- last 12 months
- Duration
- 2h 0m
- scheduled
- Distance
- 584 mi
Best airline from SLC to SJC
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlinesmost reliable | 92% | 5 min | 0.1% | 1,368 |
| Delta Air Lines | 85% | 10 min | 0.6% | 1,943 |
| Southwest Airlines | 81% | 10 min | 0.6% | 495 |
Monthly on-time trend
Best time to fly from SLC to SJC
Aim for departures around 7 a.m. (96% on-time); avoid 4 p.m. departures (78%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 86% | 8 min |
| Tuesdaybest | 93% | 6 min |
| Wednesday | 90% | 8 min |
| Thursday | 86% | 10 min |
| Friday | 85% | 8 min |
| Saturday | 88% | 8 min |
| Sunday | 84% | 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 aircraft26%
- Airline operations58%
- National airspace system6%
- Weather9%
Frequently asked questions
- How often are flights from SLC to SJC delayed?
- 13% of SLC–SJC 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 SLC to SJC?
- SkyWest Airlines has the best on-time record on this route at 92%, based on 1,368 flights. 3 airlines flew SLC–SJC frequently enough to compare in this period.
- What is the best time of day to fly from SLC to SJC?
- Departures around 7 a.m. have the best record (96% on-time), while departures around 4 p.m. have the worst (78%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SLC to SJC?
- The scheduled SLC–SJC flight time averages 2h 0m over 584 miles. Actual arrival times vary — flights on this route land 15+ minutes late 13% of the time.
- How often are SLC to SJC flights cancelled?
- 0.4% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What day of the week is most reliable for SLC to SJC?
- Tuesday flights have the best record at 93% on-time. Day-of-week differences on this route are meaningful — Sunday trails at 84%.
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Based on 3,806 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.