SJC to LAS flight delays
San Jose, CA (SJC) Las Vegas, NV (LAS) · 386 miles
3,829 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
79.69%
Arrived on time
Within 15 minutes of schedule
0.52%
Cancelled
Share of scheduled flights
58 min
When late, late by
Average across delayed arrivals
13 min
Delay per flight
Averaged over every flight flown
What the record says about this route
Which airline you fly changes the odds here. Spirit Airlines arrived on time 14.4 points more often than Frontier Airlines over the same period on the same route — same airports, same weather, same air traffic control. A gap that survives all of that is about how the two airlines are run.
The San Jose to Las Vegas route sits close to the middle of the record — neither notably punctual nor notably late.
Which airline should you fly on this route?
Over January 2025 – August 2026, Spirit Airlines arrived on time most often on SJC to LAS. Frontier Airlines was late most often. Flights ran closest to schedule in January and worst in July.
Every airline on SJC to LAS
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Southwest Airlines | 3,241 | 79.62% | 0.46% | 55 min | C |
| SkyWest Airlines | 202 | 80.2% | 0% | 79 min | B |
| Spirit Airlines | 199 | 86.8% | 0.5% | 82 min | A |
| Frontier Airlines | 185 | 72.38% | 2.16% | 62 min | D |
| United Airlines | 2 | 100% | 0% | — | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
LAS to SJC Las Vegas back to San Jose 78.35% on time COther routes from San Jose
Common questions
Are flights from San Jose to Las Vegas usually delayed?
79.69% of flights on the SJC to LAS route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is about the same as the average route in this record.
Which airline is most on time from San Jose to Las Vegas?
Spirit Airlines, at 86.8% on time across 199 flights. The least punctual on the route was Frontier Airlines at 72.38%.
How often are SJC to LAS flights cancelled?
0.52% of scheduled flights did not operate — about 5 in every thousand. That is in the normal range.
What is the best month to fly San Jose to Las Vegas?
January, when 87.8% of flights arrived on time. The worst was July at 74.1%.
When SJC to LAS flights are late, how late are they?
About 58 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on SJC to LAS during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →