Flight number record

DL 2142

Delta Air Lines · Columbus to Salt Lake City

Route: CMH → SLC
Departs: 07:30
Flights: 363
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2142, check with Delta Air Lines.

DL 2142 earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 13 points better than the national rate of 77.6%. When something does go wrong the average delay runs about an hour. That rests on 363 flights, with a median arrival 10 minutes early.

Set against the rest of the country, DL 2142's record is 13 points better than the US average of 77.6%. That gap is worth roughly 127 fewer late arrivals for every thousand flights.

On time

90.3%

Arrivals under 15 minutes late, of 361 completed flights

Avg delay

63 min

Across delayed arrivals only, not all flights

Cancelled

0.55%

National rate is 1.81%

1 hour+ late

3.0%

National rate is 8.1%

These figures cover 363 flights between July 2025 and June 2026. The median arrival is 10 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 2142 flies

DL 2142 flies CMH to SLC without a single fixed slot. Its most common scheduled departure was 07:30, used on 118 of 363 flights, with 07:05 (60 flights) and 08:15 (56 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 07:30118 flights32.5%
Departs 07:0560 flights16.5%
Departs 08:1556 flights15.4%

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 07:30 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 2142 runs level with that at 90.3%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

DL 2142 next to CMH to SLC

Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 9 points.

DL 2142 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2142thin sample	363	90.3%	63 min	0.55%	A+
All Delta Air Lines on CMH–SLCthin sample	363	90.3%	63 min	0.55%	A+
All carriers on CMH–SLCthin sample	363	90.3%	63 min	0.55%	A+
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 2142 quarter by quarter

DL 2142 did not run the same all year. Its best quarter was Jul–Sep 2025 at 97.8% on time and its weakest Jan–Mar 2026 at 83.1%, a swing of 15 points on roughly 91 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 202592 flights97.8%
Oct–Dec 202590 flights87.8%
Jan–Mar 202690 flights83.1%
Apr–Jun 202691 flights92.3%

Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, DL 2142 ranged from 86.3% on Saturday to 94.1% on Thursday. With about 52 flights behind each day, a spread of 8 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why DL 2142 runs late

One category carries most of the weight here. Carrier accounts for 73% of the 2,199 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.

Carrier
73%
National Airspace System
22%
Extreme weather
5%

The largest share of delay minutes, 73%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 1,597 of the 2,199 delay minutes reported here. The split is drawn from 2,199 delay minutes reported on DL 2142.

Cancellations are rare at 0.55%, 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

Badly late arrivals are rare here: only 3.0% land an hour or more behind schedule, against 8.1% 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 1,528 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.

Every one of the 363 flights under DL 2142 in the data flew CMH 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. 363 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 2142

For a booking, DL 2142 has one of the better records a US domestic flight can show: 90.3% on time and 0.55% cancelled. That is a base rate, not a promise about any single 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