DL3747Delta Air Lines · SLC → ONT
updated 7h ago
Route confirmed Delta Air Lines

DL3747 Salt Lake CitySLC · 15:27 OntarioONT · 16:23

DL3747 by Delta Air Lines flies from Salt Lake City (SLC) to Ontario (ONT) for the Wed, Nov 4 departure.

Right nowLanded in Ontario · today
15:59

arrived at ONT · 24 min early

⚖ DL3747 typically leaves +10 and lands −20. The air wins minutes back.
Typical gate push+10 minmedian posted departure
Typical arrival−20 minmedian over 14 operations
Wins back in air~30 minmedian gate push vs arrival · how planes make up time → Cancellation0 in 14tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
11-05
+10 gate · −24 arrival
11-04
+10 gate · −24 arrival
11-03
+14 gate · −7 arrival
11-02
+5 gate · −32 arrival
11-01
+13 gate · −9 arrival
10-30
+23 gate · −5 arrival
10-29
+9 gate · −21 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 −20 min · 0 cancelled · 14 operations tracked

The route today

live boards
SLCSalt Lake CityOn-time likelySLC delay board →
ONTOntarioOn-time likelyONT delay board →
SLC→ONTevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
41%Chance of 15+ min delay
0.5%Chance of cancellation
+12 minTypical airport delay in this weather

Driven mainly by ONT (Ontario), currently flying VFR (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 at Salt Lake City

Forecast

Fri 6 Nov, local date

High12°Clikely 11°C to 13°C
Low4°Clikely 2°C to 6°C

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 Ontario

Forecast

Fri 6 Nov, local date

High27°Clikely 25°C to 28°C
Low13°Clikely 12°C to 15°C

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 Ontario flights today

same route · Delta Air Lines
DL1416departs 08:02
DL3172departs 11:27
DL2743departs 11:44
DL4443departs 15:29
DL1614departs 21:20

If DL3747 is cancelled, these are the other Delta Air Lines nonstop flights from Salt Lake City to Ontario 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 DL3747 actually runs

Pro Flight Search has tracked every published board update for DL3747 across the SLC and ONT boards: schedule changes, gate pushes and actual clocks. Usually lands ~17 min early. Based on 13 confirmed landings · 12/13 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 DL3747 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
11-05SLC 15:27 15:37 (+10)ONT 16:23 15:59 (−24)
11-04SLC 15:27 15:37 (+10)ONT 16:23 15:59 (−24)
11-03SLC 15:27 15:41 (+14)ONT 16:23 16:16 (−7)
11-02SLC 15:27 15:32 (+5)ONT 16:23 15:51 (−32)
11-01SLC 15:27 15:40 (+13)ONT 16:23 16:14 (−9)
10-30SLC 15:27 15:50 (+23)ONT 16:23 16:18 (−5)
10-29SLC 15:27 15:36 (+9)ONT 16:23 16:02 (−21)
10-28SLC 15:27 15:37 (+10)ONT 16:23 16:09 (−14)
10-27SLC 15:27 15:39 (+12)ONT 16:23 16:02 (−21)
10-26SLC 15:27 15:42 (+15)ONT 16:23 16:04 (−19)
10-25SLC 15:27 15:33 (+6)ONT 16:23 15:48 (−35)
10-24SLC 15:27 15:31 (+4)ONT 16:23 15:52 (−31)
10-23SLC 15:27 15:58 (+31)ONT 16:23 16:21 (−2)
10-22SLC ONT 16:23 16:44 (+21)

Aircraft

Recent tails: N269SY, N282SY, N304SY, N300SY.

Board clocks recorded as SLC and ONT published them.

Planning around DL3747? 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: DL3747 Salt Lake City to Ontario on-time performance, measured from the SLC and ONT airport boards.

Canonical URL
https://proflightsearch.com/flight/DL3747
How we measure this →