SJC to LAS flight delays & on-time performance
Nonstop flights from Mineta San Jose International Airport to Harry Reid International Airport · 386 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SJC or LAS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from San Jose (SJC) to Las Vegas (LAS) arrived on time 81% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.5% were cancelled, and 6% arrived an hour or more late.
- Southwest Airlines was the most punctual airline here (81% on time); Frontier Airlines was the least (75%).
- Departures scheduled around 7am did best (97% on time); around 3pm did worst (63%).
- Tuesday was the most reliable day to fly (88% on time) and Thursday the least (74%).
- The largest source of delay minutes was late-arriving aircraft (53%).
Which airline is most on time from SJC to LAS?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| United Airlines | 100% | 0.0% | 3 min | 0.0% | 2 |
| Spirit Airlines | 83% | 0.7% | 14 min | 5.1% | 138 |
| Southwest Airlines | 81% | 0.4% | 12 min | 6.1% | 3,247 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 80% | 0.0% | 16 min | 8.2% | 171 |
| Frontier Airlines | 75% | 1.0% | 18 min | 10.0% | 192 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am97%302 flights
- 7am97%301 flights
- 8am96%244 flights
- 9am94%218 flights
- 10am90%251 flights
- 11am83%163 flights
- 12pm80%219 flights
- 1pm77%223 flights
- 2pm76%347 flights
- 3pm63%205 flights
- 4pm73%294 flights
- 5pm73%216 flights
- 6pm68%189 flights
- 7pm73%155 flights
- 8pm68%273 flights
- 9pm65%141 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday77%0.3% cancelled
- Tuesday88%0.0% cancelled
- Wednesday87%0.2% cancelled
- Thursday74%0.2% cancelled
- Friday75%1.3% cancelled
- Saturday87%0.0% cancelled
- Sunday81%0.8% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft53%
- Air traffic control & airport congestion25%
- Airline (crew, maintenance, cleaning, fueling)20%
- Extreme weather3%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)47%
- Extreme weather35%
- Air traffic control & airport congestion18%
- Security0%
SJC to LAS: common questions
- How often are SJC to LAS flights on time?
- 81% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from San Jose to Las Vegas cancelled?
- 0.5% of scheduled flights were cancelled (17 of 3,750).
- How long are typical delays?
- Across all flights the average arrival delay was 12 min (early arrivals count as zero). Flights that were late arrived 57 min behind schedule on average, and 6.3% of flights were an hour or more late.
- How long is taxi time at SJC?
- Flights on this route spent 13 min taxiing from the gate to takeoff on average.
Related routes
Return trip: LAS to SJC — 79% on time
More flights from San Jose
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SJC → LAS, nonstop flights by US airlines that report to the DOT. How we calculate this.