Flight number record
DL 2592
Delta Air Lines · San Antonio to Salt Lake City
- Route
- SAT → SLC
- Departs
- 07:35
- Flights
- 254
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2592, check with Delta Air Lines.
DL 2592 earns an A+. Nearly every flight arrives inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 18 points better than the national rate of 77.3%. When something does go wrong the average delay runs an hour and a half. That rests on 254 flights, with a median arrival 14 minutes early.
Set against the rest of the country, DL 2592's record is 18 points better than the US average of 77.3%. That gap is worth roughly 175 fewer late arrivals for every thousand flights.
Key figures
On time
94.8%
Arrivals under 15 minutes late, of 250 completed flights
Avg delay
94 min
Across delayed arrivals only, not all flights
Cancelled
0.79%
National rate is 1.89%
1 hour+ late
2.4%
National rate is 8.3%
These figures cover 254 flights between September 2025 and August 2026. The median arrival is 14 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.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Schedule
When DL 2592 flies
DL 2592 flies SAT to SLC without a single fixed slot. Its most common scheduled departure was 07:35, used on 62 of 254 flights, with 07:00 (59 flights) and 06:30 (57 flights) next.
- Departs 07:3562 flights24.4%
- Departs 07:0059 flights23.2%
- Departs 06:3057 flights22.4%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 07:35 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 2592 runs 6 points better at 94.8%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Against the route
DL 2592 next to SAT to SLC
Every carrier on SAT to SLC combined arrived on time 86.9% of the time across 1,014 flights, so DL 2592 is 8 points ahead of it. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 14 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2592thin sample | 254 | 94.8% | 94 min | 0.79% | A+ |
| All Delta Air Lines on SAT–SLC | 1,014 | 86.9% | 78 min | 0.89% | A+ |
| All carriers on SAT–SLC | 1,014 | 86.9% | 78 min | 0.89% | A+ |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 2592 quarter by quarter
Quarter by quarter DL 2592 held fairly steady: 95.5% in Jan–Mar 2026, 93.3% in Apr–Jun 2026 and 95.1% in Jul–Sep 2026. A spread of 2 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Oct–Dec 202512 flights—
- Jan–Mar 202690 flights95.5%
- Apr–Jun 202690 flights93.3%
- Jul–Sep 202662 flights95.1%
Scale runs 85% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, DL 2592 ranged from 91.9% on Monday to 97.2% on Friday. With about 36 flights behind each day, a spread of 5 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late DL 2592 runs when it is late
DL 2592 often beats the schedule: 121 of 250 completed flights, 48%, arrived 15 minutes or more early. The 13 late arrivals split 4 under half an hour, 3 between 30 and 60 minutes, and 6 an hour or more.
- 15+ min early121 flights48.4%
- Within 15 min116 flights46.4%
- 15–29 min late4 flights1.6%
- 30–59 min late3 flights1.2%
- 1–2 hours late2 flights0.8%
- 2+ hours late4 flights1.6%
Scale runs 0% to 100%.
Share of 250 completed flights by arrival against schedule.
Only 19 of 250 completed flights left 15 minutes late or more, too few to say how often the time is made up.
The worst days
Worst days for DL 2592
The latest arrival of the period was on 27 February 2026, 4 hours 18 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 27 February 2026 | 4 hours 18 minutes | Late-arriving aircraft |
| 13 May 2026 | 3 hours 38 minutes | Late-arriving aircraft |
| 27 January 2026 | 3 hours 37 minutes | Carrier |
| 19 July 2026 | 2 hours 3 minutes | Carrier |
| 3 June 2026 | 1 hour 50 minutes | Carrier |
Delay causes
Why DL 2592 runs late
Carrier accounts for 54% of the 1,218 delay minutes carriers reported here, and the remaining four split what is left.
- 54%Carrier
- 39%Late-arriving aircraft
- 5%Extreme weather
- 2%National Airspace System
39% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 1,218 reported delay minutes here, that single category outweighs weather by 9 to one. The split is drawn from 1,218 delay minutes reported on DL 2592.
Cancellations are rare at 0.79%, below the national 1.89% 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
Badly late arrivals are rare here: only 2.4% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
The 1,087 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.
Every one of the 254 flights under DL 2592 in the data flew SAT to SLC. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 254 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 2592
For a booking, DL 2592 has one of the better records a US domestic flight can show: 94.8% on time and 0.79% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- SAT to SLC, every carrier and departure
- SLC to SAT, the return direction
- Delta Air Lines 930 on the same route81.1%
- San Antonio International (SAT) delay statistics
- Salt Lake City International (SLC) delay statistics
- Delta Air Lines on-time record
- Every Delta Air Lines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.