WN3811Southwest Airlines · SJC → LAS
updated 1h ago
Route confirmed Southwest Airlines

WN3811 San JoseSJC Las VegasLAS

WN3811 by Southwest Airlines flies from San Jose (SJC) to Las Vegas (LAS).

Right nowNext departure tomorrow Operates daily
06:05

scheduled from SJC

The route today

live boards
SJCSan JoseOn-time likelySJC delay board →
LASLas VegasHigh riskLAS delay board →
SJC→LASevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
42%Chance of 15+ min delay
0.7%Chance of cancellation
+9 minTypical airport delay in this weather

Conditions at SJC and LAS are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

Tomorrow at San Jose

Forecast

Sun 15 Nov, local date

High18°Clikely 16°C to 20°C
Low11°Clikely 9°C to 13°C
  • 94% chance of rain

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at Las Vegas

Forecast

Sun 15 Nov, local date

High19°Clikely 18°C to 21°C
Low10°Clikely 9°C to 12°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other San Jose to Las Vegas flights today

same route · Southwest Airlines
WN2427departs 06:05
WN1431departs 06:30
WN3810departs 06:35
WN4508departs 07:45
WN4292departs 08:00
WN2101departs 08:40

If WN3811 is cancelled, these are the other Southwest Airlines nonstop flights from San Jose to Las Vegas on the same day, with scheduled departure times in SJC local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How WN3811 actually runs

Pro Flight Search has tracked every published board update for WN3811 across the SJC and LAS boards: schedule changes, gate pushes and actual clocks. Combined risk score: 35.7/100. Based on airport operations, weather, and cached board history at SJC and LAS.

The verdict above is that record speaking, so it reflects how WN3811 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around WN3811? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: WN3811 San Jose to Las Vegas on-time performance, measured from the SJC and LAS airport boards.

Canonical URL
https://proflightsearch.com/flight/WN3811
How we measure this →