WN4619Southwest Airlines · SFO → DEN
live · 3m ago
Route confirmed Southwest Airlines

WN4619 San FranciscoSFO DenverDEN

WN4619 by Southwest Airlines flies from San Francisco (SFO) to Denver (DEN).

Right nowNext departure today Operates daily
16:15

scheduled from SFO

The route today

live boards
SFOSan FranciscoModerate riskSFO delay board →
DENDenverModerate riskDEN delay board →
SFO→DENevery 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
1.6%Chance of cancellation
+9 minTypical airport delay in this weather

Conditions at SFO and DEN 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 DEN

Forecast

Sun 15 Nov, local date

High13°Clikely 9°C to 15°C
Low2°Clikely 0°C to 4°C
  • 40% chance of fog

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 Francisco to Denver flights today

same route · Southwest Airlines
WN4578departs 05:50
WN3428departs 08:00
WN3844departs 08:00
WN2906departs 10:40
WN3776departs 11:45
WN1652departs 13:20

If WN4619 is cancelled, these are the other Southwest Airlines nonstop flights from San Francisco to Denver on the same day, with scheduled departure times in SFO 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 WN4619 actually runs

Pro Flight Search has tracked every published board update for WN4619 across the SFO and DEN boards: schedule changes, gate pushes and actual clocks. Combined risk score: 50.0/100. Based on airport operations, weather, and cached board history at SFO and DEN.

The verdict above is that record speaking, so it reflects how WN4619 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around WN4619? 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: WN4619 San Francisco to Denver on-time performance, measured from the SFO and DEN airport boards.

Canonical URL
https://proflightsearch.com/flight/WN4619
How we measure this →