Flight number record

DL 2493

Delta Air Lines · Atlanta to Charleston

Route: ATL → CHS
Departs: 19:30
Flights: 316
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2493, check with Delta Air Lines.

DL 2493 lands a B, 6 points better than the national rate of 77.6%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 316 flights, with a median arrival 6 minutes early.

Set against the rest of the country, DL 2493's record is 6 points better than the US average of 77.6%. That gap is worth roughly 63 fewer late arrivals for every thousand flights.

On time

83.9%

Arrivals under 15 minutes late, of 310 completed flights

Avg delay

61 min

Across delayed arrivals only, not all flights

Cancelled

1.90%

National rate is 1.81%

1 hour+ late

6.5%

National rate is 8.1%

These figures cover 316 flights between July 2025 and June 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.

Schedule

When DL 2493 flies

DL 2493 flies ATL to CHS without a single fixed slot. Its most common scheduled departure was 19:30, used on 47 of 316 flights, with 19:38 (44 flights) and 20:10 (32 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 19:3047 flights14.9%
Departs 19:3844 flights13.9%
Departs 20:1032 flights10.1%

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 19:30 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and DL 2493 runs 16 points better at 83.9%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

DL 2493 next to ATL to CHS

Every carrier on ATL to CHS combined arrived on time 83.7% of the time across 3,213 flights, so DL 2493 is about level with it. Delta flew 3,210 flights on the same city pair under all its flight numbers, including this one, and those ran 83.7% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 2 points.

DL 2493 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2493thin sample	316	83.9%	61 min	1.90%	B
All Delta Air Lines on ATL–CHS	3,210	83.7%	56 min	1.62%	B
All carriers on ATL–CHS	3,213	83.7%	56 min	1.62%	B
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 2493 quarter by quarter

Quarter by quarter DL 2493 held fairly steady: 84.3% in Jul–Sep 2025, 82.1% in Oct–Dec 2025, 82.1% in Jan–Mar 2026 and 86.8% in Apr–Jun 2026. A spread of 5 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202584 flights84.3%
Oct–Dec 202568 flights82.1%
Jan–Mar 202687 flights82.1%
Apr–Jun 202677 flights86.8%

Scale runs 75% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, DL 2493 did best on Tuesday at 92.9% on time and worst on Sunday at 75.5%. Each day rests on about 45 flights, so a gap of 17 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 2493 runs late

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 3,058 reported delay minutes.

Carrier
42%
Late-arriving aircraft
26%
National Airspace System
26%
Extreme weather
7%

The largest share of delay minutes, 42%, 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 1,283 of the 3,058 delay minutes reported here. The split is drawn from 3,058 delay minutes reported on DL 2493.

Cancellations sit at 1.90% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

6.5% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.

Every one of the 316 flights under DL 2493 in the data flew ATL to CHS. 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. 316 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 2493

For a booking, read DL 2493 as 83.9% on time with 1.90% cancelled over 316 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures