WN3639 Salt Lake CitySLC · 16:25 DallasDAL · 17:20
WN3639 by Southwest Airlines flies from Salt Lake City (SLC) to Dallas (DAL).
Same number through SLC → SAN → DAL
scheduled from SLC
Where the minutes go
last 4 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SLC and DAL 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
ForecastSalt Lake City to San Diego with Southwest Airlines · Sun 1 Nov, local date
- Chance a departure leaves 60+ min late
- 18%1.9× usual
Forecast weather: 97% chance of rain at Salt Lake City; 94% chance of rain at San Diego
No cancellation outlook here: this airport's board does not publish cancellations reliably.
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · About 2 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 Salt Lake City to Dallas flights today
same route · Southwest AirlinesIf WN3639 is cancelled, these are the other Southwest Airlines nonstop flights from Salt Lake City to Dallas on the same day, with scheduled departure times in SLC 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 WN3639 actually runs
Pro Flight Search has tracked every published board update for WN3639 across the SLC and DAL boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 1 confirmed landing · 1/1 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 WN3639 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: N9025R, N8999Q, N8603F.
Board clocks recorded as SLC and DAL published them.
Planning around WN3639? 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: WN3639 Salt Lake City to Dallas on-time performance, measured from the SLC and DAL airport boards.
https://proflightsearch.com/flight/WN3639
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