Flight number record
DL 2142
Delta Air Lines · Columbus to Salt Lake City
- Route
- CMH → SLC
- Departs
- 07:30
- Flights
- 363
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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 77.3%. 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 77.3%. That gap is worth roughly 125 fewer late arrivals for every thousand flights.
Key figures
On time
89.8%
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 1.89%
1 hour+ late
3.0%
National rate is 8.3%
These figures cover 363 flights between September 2025 and August 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.
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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 124 of 363 flights, with 07:05 (60 flights) next.
- Departs 07:30124 flights34.2%
- Departs 07:0560 flights16.5%
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 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 89.8%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
DL 2142 next to CMH to SLC
Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 9 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2142thin sample | 363 | 89.8% | 63 min | 0.55% | A+ |
| All Delta Air Lines on CMH–SLCthin sample | 363 | 89.8% | 63 min | 0.55% | A+ |
| All carriers on CMH–SLCthin sample | 363 | 89.8% | 63 min | 0.55% | A+ |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | 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 100.0% on time and its weakest Jan–Mar 2026 at 83.1%, a swing of 17 points on roughly 73 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 202530 flights100.0%
- Oct–Dec 202590 flights87.8%
- Jan–Mar 202690 flights83.1%
- Apr–Jun 202691 flights92.3%
- Jul–Sep 202662 flights93.4%
Scale runs 75% to 100%.
By weekday, DL 2142 ranged from 84.6% on Saturday to 94.1% on Thursday. With about 52 flights behind each day, a spread of 10 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late DL 2142 runs when it is late
DL 2142 often beats the schedule: 139 of 361 completed flights, 39%, arrived 15 minutes or more early. The 37 late arrivals split 16 under half an hour, 10 between 30 and 60 minutes, and 11 an hour or more.
- 15+ min early139 flights38.5%
- Within 15 min185 flights51.2%
- 15–29 min late16 flights4.4%
- 30–59 min late10 flights2.8%
- 1–2 hours late4 flights1.1%
- 2+ hours late7 flights1.9%
Scale runs 0% to 100%.
Share of 361 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 27 departures that left 15 minutes late or more, only 3 made it up before arrival. 13 flights left on time and still arrived late.
The worst days
Worst days for DL 2142
The latest arrival of the period was on 22 March 2026, 3 hours 53 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 22 March 2026 | 3 hours 53 minutes | Carrier |
| 27 January 2026 | 3 hours 31 minutes | Carrier |
| 5 February 2026 | 3 hours 20 minutes | Carrier |
| 29 April 2026 | 2 hours 44 minutes | Carrier |
| 18 January 2026 | 2 hours 20 minutes | Carrier |
Delay causes
Why DL 2142 runs late
Carrier accounts for 74% of the 2,336 delay minutes carriers reported here, and the remaining four split what is left.
- 74%Carrier
- 22%National Airspace System
- 5%Extreme weather
The largest share of delay minutes, 74%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,718 of the 2,336 delay minutes reported here. The split is drawn from 2,336 delay minutes reported on DL 2142.
Cancellations are rare at 0.55%, 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 3.0% 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 1,528 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: 89.8% on time and 0.55% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- John Glenn Columbus International (CMH) 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
- Worst months to fly in the US, ranked by the data
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.