Flight number record
DL 1483
Delta Air Lines · Los Angeles to Salt Lake City
- Route
- LAX → SLC
- Departs
- 19:20
- Flights
- 257
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 1483, check with Delta Air Lines.
DL 1483 earns an A+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 9 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 257 flights, with a median arrival 11 minutes early.
Set against the rest of the country, DL 1483's record is 9 points better than the US average of 77.3%. That gap is worth roughly 93 fewer late arrivals for every thousand flights.
Key figures
On time
86.6%
Arrivals under 15 minutes late, of 254 completed flights
Avg delay
58 min
Across delayed arrivals only, not all flights
Cancelled
0.39%
National rate is 1.89%
1 hour+ late
4.3%
National rate is 8.3%
These figures cover 257 flights between September 2025 and August 2026. The median arrival is 11 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.
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Schedule
When DL 1483 flies
DL 1483 flies LAX to SLC without a single fixed slot. Its most common scheduled departure was 19:20, used on 102 of 257 flights, with 19:24 (47 flights) and 19:25 (45 flights) next.
- Departs 19:20102 flights39.7%
- Departs 19:2447 flights18.3%
- Departs 19:2545 flights17.5%
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 19:20 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and DL 1483 runs 19 points better at 86.6%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
DL 1483 next to LAX to SLC
Every carrier on LAX to SLC combined arrived on time 87.2% of the time across 4,195 flights, so DL 1483 is about level with it. Delta flew 2,457 flights on the same city pair under all its flight numbers, including this one, and those ran 88.4% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1483thin sample | 257 | 86.6% | 58 min | 0.39% | A+ |
| All Delta Air Lines on LAX–SLC | 2,457 | 88.4% | 80 min | 0.53% | A+ |
| All carriers on LAX–SLC | 4,195 | 87.2% | 72 min | 0.50% | A+ |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 1483 quarter by quarter
DL 1483 did not run the same all year. Its best quarter was Jan–Mar 2026 at 92.1% on time and its weakest Apr–Jun 2026 at 81.8%, a swing of 10 points on roughly 64 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 202517 flights—
- Oct–Dec 202560 flights83.1%
- Jan–Mar 202677 flights92.1%
- Apr–Jun 202656 flights81.8%
- Jul–Sep 202647 flights85.1%
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, DL 1483 did best on Tuesday at 92.7% on time and worst on Friday at 76.2%. Each day rests on about 37 flights, so a gap of 17 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 1483 runs when it is late
DL 1483 often beats the schedule: 85 of 254 completed flights, 33%, arrived 15 minutes or more early. The 34 late arrivals split 9 under half an hour, 14 between 30 and 60 minutes, and 11 an hour or more.
- 15+ min early85 flights33.5%
- Within 15 min135 flights53.1%
- 15–29 min late9 flights3.5%
- 30–59 min late14 flights5.5%
- 1–2 hours late8 flights3.1%
- 2+ hours late3 flights1.2%
Scale runs 0% to 100%.
Share of 254 completed flights by arrival against schedule.
A late pushback is often recovered here: of 48 departures that left 15 minutes late or more, 15 still arrived on time. Only 1 left on time and still arrived late.
The worst days
Worst days for DL 1483
The latest arrival of the period was on 19 July 2026, 3 hours 9 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 19 July 2026 | 3 hours 9 minutes | Late-arriving aircraft |
| 21 November 2025 | 3 hours 5 minutes | Late-arriving aircraft |
| 7 December 2025 | 2 hours 11 minutes | Late-arriving aircraft |
| 3 April 2026 | 1 hour 59 minutes | Carrier |
| 16 March 2026 | 1 hour 39 minutes | Carrier |
Delay causes
Why DL 1483 runs late
Late-arriving aircraft accounts for 62% of the 1,972 delay minutes carriers reported here, and the remaining four split what is left.
- 62%Late-arriving aircraft
- 37%Carrier
- 1%National Airspace System
62% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 1,972 reported delay minutes here, that single category outweighs weather by 62 to one. The split is drawn from 1,972 delay minutes reported on DL 1483.
Cancellations are rare at 0.39%, 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 4.3% 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 590 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 257 flights under DL 1483 in the data flew LAX 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. 257 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 1483
For a booking, DL 1483 has one of the better records a US domestic flight can show: 86.6% on time and 0.39% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- LAX to SLC, every carrier and departure
- SLC to LAX, the return direction
- Delta Air Lines 1647 on the same route85.4%
- Delta Air Lines 1318 on the same route91.7%
- Delta Air Lines 1194 on the same route88.5%
- Delta Air Lines 1434 on the same route92.0%
- Delta Air Lines 2311 on the same route78.7%
- Delta Air Lines 2906 on the same route95.4%
- Los Angeles International (LAX) 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.