Flight number record
DL 2493
Delta Air Lines · Atlanta to Charleston
- Route
- ATL → CHS
- Departs
- 19:30
- Flights
- 319
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2493, check with Delta Air Lines.
DL 2493 lands a B, 4 points 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 about an hour on average. That rests on 319 flights, with a median arrival 5 minutes early.
Key figures
On time
80.8%
Arrivals under 15 minutes late, of 313 completed flights
Avg delay
65 min
Across delayed arrivals only, not all flights
Cancelled
1.88%
National rate is 1.89%
1 hour+ late
7.3%
National rate is 8.3%
These figures cover 319 flights between September 2025 and August 2026. The median arrival is 5 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 2493 flies
DL 2493 flies ATL to CHS without a single fixed slot. Its most common scheduled departure was 19:30, used on 48 of 319 flights, with 19:33 (36 flights) next.
- Departs 19:3048 flights15.0%
- Departs 19:3336 flights11.3%
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 19:30 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and DL 2493 runs 13 points better at 80.8%. 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 2493 next to ATL to CHS
Every carrier on ATL to CHS combined arrived on time 82.3% of the time across 3,235 flights, so DL 2493 is 2 points behind it. Delta flew 3,232 flights on the same city pair under all its flight numbers, including this one, and those ran 82.3% on time. Across its whole network Delta Air Lines managed 81.1%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2493thin sample | 319 | 80.8% | 65 min | 1.88% | B |
| All Delta Air Lines on ATL–CHS | 3,232 | 82.3% | 56 min | 1.67% | B |
| All carriers on ATL–CHS | 3,235 | 82.3% | 56 min | 1.67% | B |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 2493 quarter by quarter
DL 2493 did not run the same all year. Its best quarter was Apr–Jun 2026 at 86.8% on time and its weakest Jul–Sep 2026 at 63.2%, a swing of 24 points on roughly 80 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 202529 flights—
- Oct–Dec 202568 flights82.1%
- Jan–Mar 202687 flights82.1%
- Apr–Jun 202677 flights86.8%
- Jul–Sep 202658 flights63.2%
Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, DL 2493 did best on Wednesday at 92.9% on time and worst on Friday at 65.3%. Each day rests on about 46 flights, so a gap of 28 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 2493 runs when it is late
The 60 late arrivals split 21 under half an hour, 16 between 30 and 60 minutes, and 23 an hour or more.
- 15+ min early47 flights15.0%
- Within 15 min206 flights65.8%
- 15–29 min late21 flights6.7%
- 30–59 min late16 flights5.1%
- 1–2 hours late11 flights3.5%
- 2+ hours late12 flights3.8%
Scale runs 0% to 100%.
Share of 313 completed flights by arrival against schedule.
14 of 67 late departures made up the time and arrived on time, 21% of them. 7 flights left on time and still arrived late.
The worst days
Worst days for DL 2493
The latest arrival of the period was on 11 July 2026, 5 hours 6 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 11 July 2026 | 5 hours 6 minutes | Late-arriving aircraft |
| 29 May 2026 | 3 hours 27 minutes | Late-arriving aircraft |
| 28 April 2026 | 2 hours 45 minutes | Carrier |
| 7 December 2025 | 2 hours 34 minutes | Late-arriving aircraft |
| 6 March 2026 | 2 hours 20 minutes | Extreme weather |
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 3,907 reported delay minutes.
- 36%Late-arriving aircraft
- 34%Carrier
- 22%National Airspace System
- 8%Extreme weather
36% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,907 reported delay minutes here, that single category outweighs weather by 5 to one. The split is drawn from 3,907 delay minutes reported on DL 2493.
Cancellations sit at 1.88% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
7.3% 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 about an hour, which a normal layover absorbs.
Every one of the 319 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. 319 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 80.8% on time with 1.88% cancelled over 319 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- ATL to CHS, every carrier and departure
- CHS to ATL, the return direction
- Delta Air Lines 2850 on the same route80.1%
- Delta Air Lines 3091 on the same route92.9%
- Delta Air Lines 3107 on the same route90.5%
- Delta Air Lines 2179 on the same route86.3%
- Delta Air Lines 1381 on the same route81.6%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Charleston International (CHS) 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
- Why the first flight of the morning is statistically safest
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.