Flight number record

DL 2179

Delta Air Lines · Charleston to Atlanta

Route: CHS → ATL
Departs: 14:26
Flights: 356
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2179, check with Delta Air Lines.

DL 2179 lands a B, 7 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 356 flights, with a median arrival 9 minutes early.

Set against the rest of the country, DL 2179's record is 7 points better than the US average of 77.3%. That gap is worth roughly 65 fewer late arrivals for every thousand flights.

On time

83.8%

Arrivals under 15 minutes late, of 345 completed flights

Avg delay

73 min

Across delayed arrivals only, not all flights

Cancelled

2.53%

National rate is 1.89%

1 hour+ late

5.5%

National rate is 8.3%

These figures cover 356 flights between September 2025 and August 2026. The median arrival is 9 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.

Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Schedule

When DL 2179 flies

DL 2179 flies CHS to ATL without a single fixed slot. Its most common scheduled departure was 14:26, used on 57 of 356 flights, with 14:30 (55 flights) next.

Departs 14:2657 flights16.0%
Departs 14:3055 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 14:26 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and DL 2179 runs 12 points better at 83.8%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Against the route

DL 2179 next to CHS to ATL

Every carrier on CHS to ATL combined arrived on time 88.9% of the time across 3,234 flights, so DL 2179 is 5 points behind it. Delta flew 3,231 flights on the same city pair under all its flight numbers, including this one, and those ran 89.0% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 3 points.

DL 2179 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2179thin sample	356	83.8%	73 min	2.53%	B
All Delta Air Lines on CHS–ATL	3,231	89.0%	79 min	1.73%	A
All carriers on CHS–ATL	3,234	88.9%	79 min	1.73%	A
Delta Air Lines, whole network	1,039,517	81.1%	71 min	1.74%	B

Across the year

DL 2179 quarter by quarter

DL 2179 did not run the same all year. Its best quarter was Jul–Sep 2025 at 90.0% on time and its weakest Jul–Sep 2026 at 75.0%, a swing of 15 points on roughly 71 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 flights90.0%
Oct–Dec 202591 flights88.5%
Jan–Mar 202685 flights89.2%
Apr–Jun 202688 flights77.6%
Jul–Sep 202662 flights75.0%

Scale runs 65% to 95%.

By weekday, DL 2179 did best on Wednesday at 98.1% on time and worst on Friday at 70.6%. Each day rests on about 51 flights, so a gap of 28 points is worth noticing but could still narrow in another year.

Arrival by arrival

How late DL 2179 runs when it is late

DL 2179 often beats the schedule: 109 of 345 completed flights, 32%, arrived 15 minutes or more early. The 56 late arrivals split 23 under half an hour, 14 between 30 and 60 minutes, and 19 an hour or more.

15+ min early109 flights31.6%
Within 15 min180 flights52.2%
15–29 min late23 flights6.7%
30–59 min late14 flights4.1%
1–2 hours late9 flights2.6%
2+ hours late10 flights2.9%

Scale runs 0% to 100%.

Share of 345 completed flights by arrival against schedule.

Time lost at the gate mostly stays lost. Of 51 departures that left 15 minutes late or more, only 4 made it up before arrival. 9 flights left on time and still arrived late.

The worst days

Worst days for DL 2179

The latest arrival of the period was on 10 July 2026, 8 hours 46 minutes behind schedule; most of its delay minutes were filed as extreme weather. Four of the five worst days fell in July 2026.

The latest arrivals of DL 2179 in the period
Date	Arrived late by	Largest filed cause
10 July 2026	8 hours 46 minutes	Extreme weather
5 July 2026	5 hours 25 minutes	Late-arriving aircraft
17 July 2026	4 hours 8 minutes	National Airspace System
16 March 2026	3 hours 28 minutes	Late-arriving aircraft
19 July 2026	3 hours 9 minutes	Late-arriving aircraft

Delay causes

Why DL 2179 runs late

Late-arriving aircraft accounts for 55% of the 4,085 delay minutes carriers reported here, and the remaining four split what is left.

Late-arriving aircraft
55%
National Airspace System
21%
Extreme weather
13%
Carrier
10%
Security
1%

Extreme weather accounts for 13% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.2 times the usual weather exposure. The split is drawn from 4,085 delay minutes reported on DL 2179.

Cancellations run at 2.53%, against 1.89% nationally. That is about one flight in 40 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

Connections and routes

What a delay on this flight costs

5.5% 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.

DL 2179 is not only a CHS to ATL flight. It also flew ATL to CHS (355 flights, 86.3% on time) often enough to be scored on its own. Airlines attach one number to several legs of an aircraft's day, and each leg keeps its own record here, so check which city pair is on your booking before reading a rate.

One caution: this is a thin sample. 356 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.

Other routes flown as DL 2179
Also flown as	Flights	On time	Avg delay	Cancelled	Grade
ATL to CHSthin sample	355	86.3%	57 min	2.54%	A

What to do with this

Booking DL 2179

For a booking, the cancellation rate is the figure to plan around on DL 2179: 2.53% of its 356 scheduled flights did not operate. A late arrival costs a little over an hour, but a cancellation costs the day, so leave a later option open.

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