WN3687 San DiegoSAN · 08:05 Salt Lake CitySLC · 10:55
WN3687 by Southwest Airlines flies from San Diego (SAN) to Salt Lake City (SLC) for the Thu, Oct 29 departure.
departs SAN · on schedule
board checked 5m ago · checking again in 45s
Where the minutes go
last 5 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 −15 min · 0 cancelled · 5 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SAN and SLC are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, 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
ForecastSan Diego to Salt Lake City with Southwest Airlines · Thu 29 Oct, local date
- Chance a departure is cancelled
- 0.2%1.4× usual
- Chance a departure leaves 60+ min late
- 9.1%0.8× usual
Forecast: WeatherTomorrow · 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 San Diego to Salt Lake City flights today
same route · Southwest AirlinesIf WN3687 is cancelled, these are the other Southwest Airlines nonstop flights from San Diego to Salt Lake City on the same day, with scheduled departure times in SAN local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How WN3687 actually runs
Pro Flight Search has tracked every published board update for WN3687 across the SAN and SLC boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 5 confirmed landings · 4/5 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how WN3687 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: N951WN, N8893L, N445WN, N228WN.
Board clocks recorded as SAN and SLC published them.
Planning around WN3687? 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 — WN3687 San Diego to Salt Lake City on-time performance, measured from the SAN and SLC airport boards.
https://proflightsearch.com/flight/WN3687
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