Flight number record

DL 1189

Delta Air Lines · Salt Lake City to Santa Ana

Route: SLC → SNA
Departs: 11:20
Flights: 331
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 1189, check with Delta Air Lines.

DL 1189 lands a B+, level with the national rate of 77.6%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 331 flights, with a median arrival 6 minutes early.

On time

77.3%

Arrivals under 15 minutes late, of 330 completed flights

Avg delay

57 min

Across delayed arrivals only, not all flights

Cancelled

0.30%

National rate is 1.81%

1 hour+ late

6.1%

National rate is 8.1%

These figures cover 331 flights between July 2025 and June 2026. The median arrival is 6 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

Schedule

When DL 1189 flies

DL 1189 flies SLC to SNA without a single fixed slot. Its most common scheduled departure was 11:20, used on 62 of 331 flights, with 11:10 (60 flights) and 10:55 (56 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 11:2062 flights18.7%
Departs 11:1060 flights18.1%
Departs 10:5556 flights16.9%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 11:20 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and DL 1189 runs level with that at 77.3%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

DL 1189 next to SLC to SNA

Every carrier on SLC to SNA combined arrived on time 84.2% of the time across 1,854 flights, so DL 1189 is 7 points behind it. Delta flew 1,655 flights on the same city pair under all its flight numbers, including this one, and those ran 84.0% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 4 points.

DL 1189 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 1189thin sample	331	77.3%	57 min	0.30%	B+
All Delta Air Lines on SLC–SNA	1,655	84.0%	58 min	0.48%	B+
All carriers on SLC–SNA	1,854	84.2%	59 min	0.70%	B+
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 1189 quarter by quarter

DL 1189 did not run the same all year. Its best quarter was Apr–Jun 2026 at 87.1% on time and its weakest Oct–Dec 2025 at 72.5%, a swing of 15 points on roughly 83 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Jul–Sep 202579 flights73.4%
Oct–Dec 202592 flights72.5%
Jan–Mar 202690 flights77.8%
Apr–Jun 202670 flights87.1%

Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, DL 1189 did best on Wednesday at 91.8% on time and worst on Saturday at 68.3%. Each day rests on about 47 flights, so a gap of 24 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 1189 runs late

One category carries most of the weight here. Carrier accounts for 56% of the 4,294 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Carrier
56%
National Airspace System
24%
Late-arriving aircraft
16%
Extreme weather
4%

The largest share of delay minutes, 56%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 2,426 of the 4,294 delay minutes reported here. The split is drawn from 4,294 delay minutes reported on DL 1189.

Cancellations are rare at 0.30%, below the national 1.81% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

Connections and routes

What a delay on this flight costs

6.1% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.

The 588 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

The same number turns up on one other city pair in the data, including SNA to SLC (39), but none flew often enough under DL 1189 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SLC to SNA only.

One caution: this is a thin sample. 331 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

What to do with this

Booking DL 1189

For a booking, DL 1189 is one of the weaker ways to fly SLC to SNA: 7 points below the route as a whole. If the schedule allows, compare it with the other departures listed on the route page before settling on this one.

Where to go next

A flight number here means Delta Air Lines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures