Flight number record

DL 2850

Delta Air Lines · Atlanta to Charleston

Route: ATL → CHS
Departs: 22:49
Flights: 364
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2850, check with Delta Air Lines.

DL 2850 lands a B, 2 points better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by roughly 50 minutes on average. That is a workable record, not a spotless one. That rests on 364 flights, with a median arrival 5 minutes early.

On time

79.3%

Arrivals under 15 minutes late, of 357 completed flights

Avg delay

51 min

Across delayed arrivals only, not all flights

Cancelled

1.92%

National rate is 1.81%

1 hour+ late

6.2%

National rate is 8.1%

These figures cover 364 flights between July 2025 and June 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.

Schedule

When DL 2850 flies

DL 2850 flies ATL to CHS without a single fixed slot. Its most common scheduled departure was 22:49, used on 70 of 364 flights, with 22:47 (53 flights) and 22:50 (46 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 22:4970 flights19.2%
Departs 22:4753 flights14.6%
Departs 22:5046 flights12.6%

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 22:49 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and DL 2850 runs 9 points better at 79.3%. 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 2850 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 2850 is 4 points behind 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 trails by 2 points.

DL 2850 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2850thin sample	364	79.3%	51 min	1.92%	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 2850 quarter by quarter

DL 2850 did not run the same all year. Its best quarter was Apr–Jun 2026 at 86.7% on time and its weakest Jul–Sep 2025 at 71.7%, a swing of 15 points on roughly 91 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 202592 flights71.7%
Oct–Dec 202591 flights76.4%
Jan–Mar 202690 flights82.6%
Apr–Jun 202691 flights86.7%

Scale runs 65% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, DL 2850 did best on Monday at 92.2% on time and worst on Sunday at 64.7%. Each day rests on about 52 flights, so a gap of 28 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 2850 runs late

One category carries most of the weight here. Carrier accounts for 45% of the 3,806 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Carrier
45%
Late-arriving aircraft
29%
National Airspace System
18%
Extreme weather
7%

The largest share of delay minutes, 45%, 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 1,725 of the 3,806 delay minutes reported here. The split is drawn from 3,806 delay minutes reported on DL 2850.

Cancellations sit at 1.92% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

6.2% 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 roughly 50 minutes, which a normal layover absorbs.

Every one of the 364 flights under DL 2850 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. 364 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 2850

For a booking, read DL 2850 as 79.3% on time with 1.92% cancelled over 364 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