Carrier route record

DLSLC→CLT

Delta Air Lines · Salt Lake City to Charlotte

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 SLC to CLT 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 8 points better than the national rate of 77.3%. When something does go wrong the average delay runs roughly 35 minutes. That rests on 365 flights, with a median arrival 7 minutes early.

Set against the rest of the country, Delta's SLC to CLT record is 8 points better than the US average of 77.3%. That gap is worth roughly 80 fewer late arrivals for every thousand flights.

On time

85.3%

Arrivals under 15 minutes late, of 360 completed flights

Avg delay

33 min

Across delayed arrivals only, not all flights

Cancelled

1.37%

National rate is 1.89%

Whole route

83.6%

Every carrier on SLC to CLT, 901 flights

These figures cover 365 flights between September 2025 and August 2026. The median arrival is 7 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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Carrier by carrier

Delta against every carrier on SLC to CLT

Delta flew 365 of the 901 flights on SLC to CLT, about 41% of it. Its 85.3% on time is 2 points better than the route as a whole, which runs 83.6%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from Delta at 85.3% to American at 82.4%.

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.

On-time performance by carrier on SLC to CLT
Airline	Flights	On time	Avg delay	Cancelled	Grade
Delta Air Lines (this page)	365	85.3%	33 min	1.37%	A
American Airlines	536	82.4%	90 min	0.93%	B+

Flight by flight

Delta flight numbers on SLC to CLT

DL 207010:3085.3% · 365 flights

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 matters more here than the choice of carrier. The gap between the best and worst window is 11 points, against half a point between the best and worst carrier.

5am–8am—
8am–11am300 flights87.2%
11am–2pm65 flights76.6%
2pm–5pm—
5pm–8pm—
8pm–5am—

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

The weak window here is the middle of the day, not the evening: 11am–2pm runs 76.6% on time against 87.2% for 8am–11am. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 8am–11am window is the busiest, with 300 flights scheduled in it.

Across the year

Delta on SLC to CLT through the year

Darker means more delays. Figures are on-time percentages.November best, August worst

August is the worst month at 67.7% on time, 29 points below November, the best at 96.7%. 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 94.2% on time and Friday the weakest at 75.0%, a spread of 19 points.

Arrival by arrival

How late Delta on SLC to CLT runs when it is late

Delta on SLC to CLT often beats the schedule: 105 of 360 completed flights, 29%, arrived 15 minutes or more early. Most of the lateness is short. 29 of the 53 late arrivals were under half an hour behind, and 8 reached an hour or more. Not one arrived two hours late.

15+ min early105 flights29.2%
Within 15 min202 flights56.1%
15–29 min late29 flights8.1%
30–59 min late16 flights4.4%
1–2 hours late8 flights2.2%
2+ hours late0 flights0.0%

Scale runs 0% to 100%.

Share of 360 completed flights by arrival against schedule.

A late pushback is often recovered here: of 36 departures that left 15 minutes late or more, 11 still arrived on time. In the other direction, 28 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 CLT.

The worst days

Worst days for Delta on SLC to CLT

The latest arrival of the period was on 7 July 2026, 1 hour 33 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.

The latest arrivals of Delta on SLC to CLT in the period
Date	Arrived late by	Largest filed cause
7 July 2026	1 hour 33 minutes	Late-arriving aircraft
17 March 2026	1 hour 29 minutes	Late-arriving aircraft
29 June 2026	1 hour 8 minutes	Carrier
3 June 2026	1 hour 5 minutes	Late-arriving aircraft
27 October 2025	1 hour 4 minutes	Late-arriving aircraft

Delay causes

Why Delta runs late on this route

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 1,741 reported delay minutes.

National Airspace System
39%
Late-arriving aircraft
30%
Carrier
30%
Extreme weather
1%

39% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 681 minutes out of 1,741, against a national NAS share of 21%. The split is drawn from 1,741 reported delay minutes.

The practical consequence: the 8am–11am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 87.2% on time here.

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 2.2% 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 83.3% 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 SLC to CLT

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 85.3% 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.

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures