WN4278Southwest Airlines · SAN → AUS
live · 4m ago
Route confirmed Southwest Airlines

WN4278 San DiegoSAN AustinAUS

WN4278 by Southwest Airlines flies from San Diego (SAN) to Austin (AUS).

Right nowNext departure today Operates daily
11:10

scheduled from SAN

The route today

live boards
SANSan DiegoOn-time likelySAN delay board →
AUSAustinHigh riskAUS delay board →
SAN→AUSevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
54%Chance of 15+ min delay
1.2%Chance of cancellation
+16 minTypical airport delay in this weather

Driven mainly by SAN (San Diego), currently flying VFR (visual). 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

Forecast

Thu 12 Nov, local date

High24°Clikely 23°C to 26°C
Low16°Clikely 14°C to 17°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.

Tomorrow at AUS

Forecast

Thu 12 Nov, local date

High25°Clikely 21°C to 27°C
Low13°Clikely 11°C to 15°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 Diego to Austin flights today

same route · Southwest Airlines
WN4997departs 06:15
WN1148departs 06:45
WN2426departs 08:20
WN1658departs 09:15
WN2513departs 12:10
WN2328departs 13:15

If WN4278 is cancelled, these are the other Southwest Airlines nonstop flights from San Diego to Austin on the same day, with scheduled departure times in SAN 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 WN4278 actually runs

Pro Flight Search has tracked every published board update for WN4278 across the SAN and AUS boards: schedule changes, gate pushes and actual clocks. Combined risk score: 50.0/100. Based on airport operations, weather, and cached board history at SAN and AUS.

The verdict above is that record speaking, so it reflects how WN4278 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around WN4278? 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: WN4278 San Diego to Austin on-time performance, measured from the SAN and AUS airport boards.

Canonical URL
https://proflightsearch.com/flight/WN4278
How we measure this →