WN3291 OntarioONT · 12:40 DenverDEN · 15:50
WN3291 by Southwest Airlines flies from Ontario (ONT) to Denver (DEN) for the Fri, Oct 30 departure.
arrived at DEN · 1 min late
Where the minutes go
last 6 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operationmedian arrival +1 min · 0 cancelled · 6 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at ONT 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 on this route
ForecastOntario to Denver with Southwest Airlines · Sat 31 Oct, local date
- Chance a departure leaves 60+ min late
- 6.1%1.2× usual
Forecast weather: 82% chance of rain at Ontario; 57% chance of fog at Denver
No cancellation outlook here: this airport's board does not publish cancellations reliably.
Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · About 4 departures a day on this route with this airline. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Ontario to Denver flights today
same route · Southwest AirlinesIf WN3291 is cancelled, these are the other Southwest Airlines nonstop flights from Ontario to Denver on the same day, with scheduled departure times in ONT 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 WN3291 actually runs
Pro Flight Search has tracked every published board update for WN3291 across the ONT and DEN boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 6 confirmed landings · 6/6 within 15 min of schedule. Pushes back late but makes up time in the air.
The verdict above is that record speaking, so it reflects how WN3291 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: N8873S, N8850Q, N8852Q, N9022W.
Board clocks recorded as ONT and DEN published them.
Planning around WN3291? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search: WN3291 Ontario to Denver on-time performance, measured from the ONT and DEN airport boards.
https://proflightsearch.com/flight/WN3291
.