DL1128Delta Air Lines · SEA → SLC
live · 44m ago
Route confirmed Delta Air Lines

DL1128 SeattleSEA · 05:30 Salt Lake CitySLC · 08:35

DL1128 by Delta Air Lines flies from Seattle (SEA) to Salt Lake City (SLC).

Right nowNext departure today Operates daily
05:30

scheduled from SEA

Typical arrival−19 minmedian over 11 operations
Cancellation0 in 11tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
10-30
−18 arrival
10-29
−24 arrival
10-28
−25 arrival
10-27
−16 arrival
10-26
−20 arrival
10-25
−19 arrival
10-24
+0 arrival

The 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 operation

median arrival −19 min · 0 cancelled · 11 operations tracked

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

Delay & cancellation outlook for this flight

Measured, 90-day sample
32%Chance of 15+ min delay
0.9%Chance of cancellation
+1 minTypical airport delay in this weather

Conditions at SEA 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 Salt Lake City

Forecast

Sat 31 Oct, local date

High17°Clikely 14°C to 19°C
Low9°Clikely 6°C to 11°C
  • 89% chance of rain
Outlook: about usual
Chance a departure leaves 60+ min late
7.3%usually 6.6%

Weather behind it: 89% chance of rain at Salt Lake City; 43% chance of fog at Denver, where 6% of departures go

No cancellation outlook here: this airport's board does not publish cancellations reliably.

Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · Based on about 350 departures a day. · 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
DL4182departs 07:10
DL2858departs 07:15
DL9979departs 09:15
DL1016departs 09:42
DL4540departs 10:00
DL1265departs 11:05

If DL1128 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 DL1128 actually runs

Pro Flight Search has tracked every published board update for DL1128 across the SEA and SLC boards: schedule changes, gate pushes and actual clocks. Usually lands ~13 min early. Based on 10 confirmed landings · 10/10 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how DL1128 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
10-30SEA 05:30SLC 08:35 08:17 (−18)
10-29SEA 05:30SLC 08:35 08:11 (−24)
10-28SEA 05:30SLC 08:35 08:10 (−25)
10-27SEA 05:30SLC 08:35 08:19 (−16)
10-26SEA 05:30SLC 08:35 08:15 (−20)
10-25SEA 05:30SLC 08:35 08:16 (−19)
10-24SEA 05:30SLC 08:35 (+0)
10-23SEA 05:30SLC 08:35 08:17 (−18)
10-22SEA 05:30SLC 08:35 08:12 (−23)
10-21SEA 05:30SLC 08:35 08:06 (−29)
10-20SEA 05:30SLC 08:35 08:30 (−5)
10-19SEA 05:30SLC

Aircraft

Recent tails: N507DZ, N591DT, N541DE, N544DN.

Board clocks recorded as SEA and SLC published them.

Planning around DL1128? 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: DL1128 Seattle to Salt Lake City on-time performance, measured from the SEA and SLC airport boards.

Canonical URL
https://proflightsearch.com/flight/DL1128
How we measure this →