DL4050 TucsonTUS · 12:16 Salt Lake CitySLC · 14:18
DL4050 by Delta Air Lines flies from Tucson (TUS) to Salt Lake City (SLC).
scheduled from TUS
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 −20 min · 0 cancelled · 6 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at TUS and SLC 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 Tucson
ForecastSat 7 Nov, local date
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 Salt Lake City
ForecastSat 7 Nov, local date
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 departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Tucson to Salt Lake City flights today
same route · Delta Air LinesIf DL4050 is cancelled, these are the other Delta Air Lines nonstop flights from Tucson to Salt Lake City on the same day, with scheduled departure times in TUS 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 DL4050 actually runs
Pro Flight Search has tracked every published board update for DL4050 across the TUS and SLC boards: schedule changes, gate pushes and actual clocks. Usually lands ~16 min early. 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 DL4050 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: N271SY, N277SY, N269SY, N267SY.
Board clocks recorded as TUS and SLC published them.
Planning around DL4050? 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: DL4050 Tucson to Salt Lake City on-time performance, measured from the TUS and SLC airport boards.
https://proflightsearch.com/flight/DL4050
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