DL4620Delta Air Lines · SLC → SEA
live · 9m ago
Route confirmed Delta Air Lines

DL4620 Salt Lake CitySLC SeattleSEA

DL4620 by Delta Air Lines flies from Salt Lake City (SLC) to Seattle (SEA).

Right nowNext departure today Operates daily
16:00

scheduled from SLC

The route today

live boards
SLCSalt Lake CityOn-time likelySLC delay board →
SEASeattleModerate riskSEA delay board →
SLC→SEAevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
30%Chance of 15+ min delay
0.7%Chance of cancellation
-1 minTypical airport delay in this weather

Conditions at SLC and SEA 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 SLC

Forecast

Sat 14 Nov, local date

High11°Clikely 9°C to 12°C
Low5°Clikely 3°C to 7°C
  • 94% chance of rain

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 SEA

Forecast

Sat 14 Nov, local date

High14°Clikely 13°C to 15°C
Low10°Clikely 8°C to 11°C
  • 91% chance of rain

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 departures
061422
M
T
W
T
F
S
S

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

Other Salt Lake City to Seattle flights today

same route · Delta Air Lines
DL2874departs 07:45
DL2995departs 11:20
DL2921departs 13:20
DL2817departs 15:00
DL871departs 17:25
DL2016departs 20:40

If DL4620 is cancelled, these are the other Delta Air Lines nonstop flights from Salt Lake City to Seattle 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 DL4620 actually runs

Pro Flight Search has tracked every published board update for DL4620 across the SLC and SEA boards: schedule changes, gate pushes and actual clocks. Combined risk score: 33.0/100. Based on airport operations, weather, and cached board history at SLC and SEA.

The verdict above is that record speaking, so it reflects how DL4620 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around DL4620? 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: DL4620 Salt Lake City to Seattle on-time performance, measured from the SLC and SEA airport boards.

Canonical URL
https://proflightsearch.com/flight/DL4620
How we measure this →