Flight number record
DL 2850
Delta Air Lines · Atlanta to Charleston
- Route
- ATL → CHS
- Departs
- 22:47
- Flights
- 364
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2850, check with Delta Air Lines.
DL 2850 lands a B, 3 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 roughly 45 minutes on average. That rests on 364 flights, with a median arrival 5 minutes early.
Key figures
On time
80.1%
Arrivals under 15 minutes late, of 357 completed flights
Avg delay
47 min
Across delayed arrivals only, not all flights
Cancelled
1.92%
National rate is 1.89%
1 hour+ late
4.5%
National rate is 8.3%
These figures cover 364 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 2850 flies
DL 2850 flies ATL to CHS without a single fixed slot. Its most common scheduled departure was 22:47, used on 53 of 364 flights, with 22:45 (48 flights) and 22:50 (46 flights) next.
- Departs 22:4753 flights14.6%
- Departs 22:4548 flights13.2%
- Departs 22:5046 flights12.6%
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 22:47 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and DL 2850 runs 10 points better at 80.1%. 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 2850 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 2850 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 2850thin sample | 364 | 80.1% | 47 min | 1.92% | 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 2850 quarter by quarter
DL 2850 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 67.7%, a swing of 22 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 flights90.0%
- Oct–Dec 202591 flights76.4%
- Jan–Mar 202690 flights82.6%
- Apr–Jun 202691 flights86.7%
- Jul–Sep 202662 flights67.7%
Scale runs 60% to 95%.
By weekday, DL 2850 did best on Monday at 90.4% on time and worst on Sunday at 64.7%. Each day rests on about 52 flights, so a gap of 26 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 2850 runs when it is late
The 71 late arrivals split 27 under half an hour, 28 between 30 and 60 minutes, and 16 an hour or more.
- 15+ min early63 flights17.6%
- Within 15 min223 flights62.5%
- 15–29 min late27 flights7.6%
- 30–59 min late28 flights7.8%
- 1–2 hours late12 flights3.4%
- 2+ hours late4 flights1.1%
Scale runs 0% to 100%.
Share of 357 completed flights by arrival against schedule.
9 of 70 late departures made up the time and arrived on time, 13% of them. 10 flights left on time and still arrived late.
The worst days
Worst days for DL 2850
The latest arrival of the period was on 7 December 2025, 2 hours 45 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The five worst days are spread across December, July, August, June and March, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 7 December 2025 | 2 hours 45 minutes | Late-arriving aircraft |
| 12 July 2026 | 2 hours 41 minutes | Carrier |
| 7 August 2026 | 2 hours 37 minutes | Carrier |
| 14 June 2026 | 2 hours 9 minutes | Late-arriving aircraft |
| 9 March 2026 | 1 hour 43 minutes | National Airspace System |
Delay causes
Why DL 2850 runs late
Carrier accounts for 52% of the 3,304 delay minutes carriers reported here, and the remaining four split what is left.
- 52%Carrier
- 29%Late-arriving aircraft
- 15%National Airspace System
- 4%Extreme weather
The largest share of delay minutes, 52%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,724 of the 3,304 delay minutes reported here. The split is drawn from 3,304 delay minutes reported on DL 2850.
Cancellations sit at 1.92% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 4.5% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
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 80.1% on time with 1.92% cancelled over 364 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 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 2493 on the same route80.8%
- 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
- Worst months to fly in the US, ranked by the data
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.