Carrier route record
DLCLT→SLC
Delta Air Lines · Charlotte to Salt Lake City
- Flights
- 365
- Period
- September 2025 to August 2026
- Share of route
- 41%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Delta Air Lines.
Delta on CLT to SLC lands a B, 6 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about 55 minutes on average. That rests on 365 flights, with a median arrival 6 minutes early.
Set against the rest of the country, Delta's CLT to SLC record is 6 points better than the US average of 77.3%. That gap is worth roughly 60 fewer late arrivals for every thousand flights.
Key figures
On time
83.3%
Arrivals under 15 minutes late, of 360 completed flights
Avg delay
54 min
Across delayed arrivals only, not all flights
Cancelled
1.37%
National rate is 1.89%
Whole route
81.9%
Every carrier on CLT to SLC, 901 flights
These figures cover 365 flights between September 2025 and August 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.
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.
Carrier by carrier
Delta against every carrier on CLT to SLC
Delta flew 365 of the 901 flights on CLT to SLC, about 41% of it. Its 83.3% on time is about level with the route as a whole at 81.9%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from Delta at 83.3% to American at 80.9%.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Lines (this page) | 365 | 83.3% | 54 min | 1.37% | B |
| American Airlines | 536 | 80.9% | 62 min | 0.93% | B+ |
Flight by flight
Delta flight numbers on CLT to SLC
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.
Departure window
When Delta runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 365 flights.
There are not enough flights in each departure window to split Delta's CLT to SLC record by time of day without the percentages moving on noise. The headline rate of 83.3% is the reliable figure here.
Across the year
Delta on CLT to SLC through the year
August is the worst month at 61.3% on time, 32 points below April, the best at 93.3%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. March was the busiest month here, with 31 flights.
Across the week, Wednesday is the strongest day at 90.4% on time and Sunday the weakest at 71.4%, a spread of 19 points.
Arrival by arrival
How late Delta on CLT to SLC runs when it is late
Delta on CLT to SLC often beats the schedule: 100 of 360 completed flights, 28%, arrived 15 minutes or more early. Most of the lateness is short. 30 of the 60 late arrivals were under half an hour behind, and 15 reached an hour or more.
- 15+ min early100 flights27.8%
- Within 15 min200 flights55.6%
- 15–29 min late30 flights8.3%
- 30–59 min late15 flights4.2%
- 1–2 hours late14 flights3.9%
- 2+ hours late1 flights0.3%
Scale runs 0% to 100%.
Share of 360 completed flights by arrival against schedule.
15 of 56 late departures made up the time and arrived on time, 27% of them. In the other direction, 19 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at SLC.
The worst days
Worst days for Delta on CLT to SLC
The latest arrival of the period was on 23 July 2026, 16 hours behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 23 July 2026 | 16 hours | Carrier |
| 22 August 2026 | 1 hour 47 minutes | Carrier |
| 27 June 2026 | 1 hour 22 minutes | Extreme weather |
| 28 February 2026 | 1 hour 20 minutes | Carrier |
| 27 October 2025 | 1 hour 17 minutes | Late-arriving aircraft |
Delay causes
Why Delta runs late on this route
Carrier accounts for 49% of the 3,256 delay minutes carriers reported here, and the remaining four split what is left.
- 49%Carrier
- 25%National Airspace System
- 21%Late-arriving aircraft
- 5%Extreme weather
The largest share of delay minutes, 49%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,600 of the 3,256 delay minutes reported here. The split is drawn from 3,256 reported delay minutes.
Cancellations sit at 1.37% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here costs
Badly late arrivals are rare here: only 4.2% 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.
At 1,727 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
The return leg runs 85.3% on time across 365 flights, within 2 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 365 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 Delta on CLT to SLC
Put together: treat all of this as provisional. 365 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 83.3% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 360 completed flights over 12 months sit behind that.
Related
Where to go next
- CLT to SLC, every carrier
- Delta on SLC to CLT, the return leg
- American Airlines on CLT to SLC80.9%
- Delta Air Lines network-wide record
- Charlotte Douglas International (CLT) delay statistics
- Salt Lake City International (SLC) delay statistics
- Worst months to fly in the US, ranked by the data
- How to read this site: grades, sample sizes, and honest caveats
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.