DL4180Delta Air Lines · SEA → SLC
live · 19m ago
Route confirmed Delta Air Lines

DL4180 SeattleSEA Salt Lake CitySLC

DL4180 by Delta Air Lines flies from Seattle (SEA) to Salt Lake City (SLC).

Right nowNext departure tomorrow Operates daily
05:45

scheduled from SEA

The route today

live boards
SEASeattleOn-time likelySEA delay board →
SLCSalt Lake CityOn-time likelySLC delay board →
SEA→SLCevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
27%Chance of 15+ min delay
1.0%Chance of cancellation
+4 minTypical airport delay in this weather

Driven mainly by SLC (Salt Lake City), currently flying MVFR (marginal visual). 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

Forecast

Seattle to Salt Lake City with Delta Air Lines · Sat 31 Oct, local date

Outlook: about usual
Chance a departure is cancelled
0.3%2.0× usual
Chance a departure leaves 60+ min late
6.2%0.9× usual

Forecast weather: 41% chance of fog at Seattle; 95% chance of rain at Salt Lake City

Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · About 7 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 departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Seattle to Salt Lake City flights today

same route · Delta Air Lines
DL1128departs 05:30
DL4182departs 07:10
DL2858departs 07:15
DL9979departs 09:15
DL1016departs 09:42
DL4540departs 10:00

If DL4180 is cancelled, these are the other Delta Air Lines nonstop flights from Seattle to Salt Lake City on the same day, with scheduled departure times in SEA 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 DL4180 actually runs

Pro Flight Search has tracked every published board update for DL4180 across the SEA and SLC boards: schedule changes, gate pushes and actual clocks. Combined risk score: 50.0/100. Based on airport operations, weather, and cached board history at SEA and SLC.

The verdict above is that record speaking, so it reflects how DL4180 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around DL4180? 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: DL4180 Seattle to Salt Lake City on-time performance, measured from the SEA and SLC airport boards.

Canonical URL
https://proflightsearch.com/flight/DL4180
How we measure this →