Flight number record

DL 2230

Delta Air Lines · Salt Lake City to Columbus

Route: SLC → CMH
Departs: 17:35
Flights: 363
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2230, check with Delta Air Lines.

DL 2230 lands a B+, about a point better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 363 flights, with a median arrival 4 minutes early.

On time

78.3%

Arrivals under 15 minutes late, of 360 completed flights

Avg delay

73 min

Across delayed arrivals only, not all flights

Cancelled

0.28%

National rate is 1.89%

1 hour+ late

7.2%

National rate is 8.3%

These figures cover 363 flights between September 2025 and August 2026. The median arrival is 4 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 2230 flies

DL 2230 flies SLC to CMH without a single fixed slot. Its most common scheduled departure was 17:35, used on 123 of 363 flights, with 17:25 (104 flights) and 17:30 (56 flights) next.

Departs 17:35123 flights33.9%
Departs 17:25104 flights28.7%
Departs 17:3056 flights15.4%

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 17:35 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and DL 2230 runs 10 points better at 78.3%. 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 2230 next to SLC to CMH

Across its whole network Delta Air Lines managed 81.1%, which this flight trails by 3 points.

DL 2230 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2230thin sample	363	78.3%	73 min	0.28%	B+
All Delta Air Lines on SLC–CMHthin sample	363	78.3%	73 min	0.28%	B+
All carriers on SLC–CMHthin sample	363	78.3%	73 min	0.28%	B+
Delta Air Lines, whole network	1,039,517	81.1%	71 min	1.74%	B

Across the year

DL 2230 quarter by quarter

DL 2230 did not run the same all year. Its best quarter was Jul–Sep 2025 at 86.7% on time and its weakest Jul–Sep 2026 at 65.6%, a swing of 21 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 flights86.7%
Oct–Dec 202590 flights77.8%
Jan–Mar 202690 flights80.7%
Apr–Jun 202691 flights82.4%
Jul–Sep 202662 flights65.6%

Scale runs 55% to 90%.

By weekday, DL 2230 did best on Thursday at 88.2% on time and worst on Sunday at 72.5%. Each day rests on about 52 flights, so a gap of 16 points is worth noticing but could still narrow in another year.

Arrival by arrival

How late DL 2230 runs when it is late

The 78 late arrivals split 19 under half an hour, 33 between 30 and 60 minutes, and 26 an hour or more.

15+ min early79 flights21.9%
Within 15 min203 flights56.4%
15–29 min late19 flights5.3%
30–59 min late33 flights9.2%
1–2 hours late9 flights2.5%
2+ hours late17 flights4.7%

Scale runs 0% to 100%.

Share of 360 completed flights by arrival against schedule.

14 of 89 late departures made up the time and arrived on time, 16% of them. Only 3 left on time and still arrived late.

The worst days

Worst days for DL 2230

The latest arrival of the period was on 13 July 2026, 4 hours 20 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in July 2026.

The latest arrivals of DL 2230 in the period
Date	Arrived late by	Largest filed cause
13 July 2026	4 hours 20 minutes	Carrier
20 July 2026	4 hours 8 minutes	Carrier
28 July 2026	4 hours 6 minutes	Carrier
5 April 2026	3 hours 47 minutes	Carrier
29 December 2025	3 hours 37 minutes	Carrier

Delay causes

Why DL 2230 runs late

Carrier accounts for 67% of the 5,674 delay minutes carriers reported here, and the remaining four split what is left.

Carrier
67%
Late-arriving aircraft
24%
National Airspace System
6%
Extreme weather
3%

The largest share of delay minutes, 67%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,795 of the 5,674 delay minutes reported here. The split is drawn from 5,674 delay minutes reported on DL 2230.

Cancellations are rare at 0.28%, 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

7.2% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.

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 2230 in the data flew SLC to CMH. 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 2230

For a booking, read DL 2230 as 78.3% on time with 0.28% cancelled over 363 flights. Those are rates from the past twelve months, not a forecast for any particular 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, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures