Flight number record

DL 2873

Delta Air Lines · Austin to Salt Lake City

Route: AUS → SLC
Departs: 12:25
Flights: 341
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2873, check with Delta Air Lines.

DL 2873 lands a B+, 6 points better than the national rate of 77.6%. About one flight in six arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That is a workable record, not a spotless one. That rests on 341 flights, with a median arrival 8 minutes early.

Set against the rest of the country, DL 2873's record is 6 points better than the US average of 77.6%. That gap is worth roughly 59 fewer late arrivals for every thousand flights.

On time

83.5%

Arrivals under 15 minutes late, of 339 completed flights

Avg delay

87 min

Across delayed arrivals only, not all flights

Cancelled

0.59%

National rate is 1.81%

1 hour+ late

7.1%

National rate is 8.1%

These figures cover 341 flights between July 2025 and June 2026. The median arrival is 8 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 2873 flies

DL 2873 flies AUS to SLC without a single fixed slot. Its most common scheduled departure was 12:25, used on 57 of 341 flights, with 12:00 (38 flights) and 12:17 (35 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 12:2557 flights16.7%
Departs 12:0038 flights11.1%
Departs 12:1735 flights10.3%

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 12:25 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and DL 2873 runs 5 points better at 83.5%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

DL 2873 next to AUS to SLC

Every carrier on AUS to SLC combined arrived on time 82.4% of the time across 1,784 flights, so DL 2873 is about level with it. Delta flew 1,081 flights on the same city pair under all its flight numbers, including this one, and those ran 86.5% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 2 points.

DL 2873 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2873thin sample	341	83.5%	87 min	0.59%	B+
All Delta Air Lines on AUS–SLC	1,081	86.5%	93 min	0.74%	A+
All carriers on AUS–SLC	1,784	82.4%	75 min	0.67%	B+
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 2873 quarter by quarter

Quarter by quarter DL 2873 held fairly steady: 88.0% in Jul–Sep 2025, 81.5% in Oct–Dec 2025, 78.9% in Jan–Mar 2026 and 86.2% in Apr–Jun 2026. A spread of 9 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights88.0%
Oct–Dec 202592 flights81.5%
Jan–Mar 202690 flights78.9%
Apr–Jun 202667 flights86.2%

Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, DL 2873 did best on Tuesday at 91.8% on time and worst on Friday at 75.0%. Each day rests on about 49 flights, so a gap of 17 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 2873 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 47% of the 4,887 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.

Late-arriving aircraft
47%
Carrier
46%
National Airspace System
6%
Extreme weather
2%

47% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 4,887 reported delay minutes here, that single category outweighs weather by 24 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 4,887 delay minutes reported on DL 2873.

Cancellations are rare at 0.59%, 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

7.1% 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 an hour and a half, which a normal layover absorbs.

The 1,086 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 DFW to MSP (18), but none flew often enough under DL 2873 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to AUS to SLC only.

One caution: this is a thin sample. 341 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 2873

For a booking, read DL 2873 as 83.5% on time with 0.59% cancelled over 341 flights. Those are rates from the past twelve months, not a forecast for any particular day.

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