Flight number record
DL 2600
Delta Air Lines · Atlanta to Raleigh
- Route
- ATL → RDU
- Departs
- 15:55
- Flights
- 302
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2600, check with Delta Air Lines.
DL 2600 lands a B+, level with the national rate of 77.3%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 302 flights, with a median arrival right on schedule.
Key figures
On time
76.9%
Arrivals under 15 minutes late, of 299 completed flights
Avg delay
55 min
Across delayed arrivals only, not all flights
Cancelled
0.33%
National rate is 1.89%
1 hour+ late
7.7%
National rate is 8.3%
These figures cover 302 flights between September 2025 and August 2026. On-time means an arrival less than 15 minutes after the scheduled gate time, the same threshold the Department of Transportation uses in its own reports. Cancelled and diverted flights are excluded from the on-time rate and counted separately, which is why the cancellation column matters on its own.
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Schedule
When DL 2600 flies
DL 2600 flies ATL to RDU without a single fixed slot. Its most common scheduled departure was 15:55, used on 31 of 302 flights.
- Departs 15:5531 flights10.3%
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 15:55 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and DL 2600 runs 5 points better at 76.9%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
DL 2600 next to ATL to RDU
Every carrier on ATL to RDU combined arrived on time 80.0% of the time across 4,642 flights, so DL 2600 is 3 points behind it. Delta flew 3,811 flights on the same city pair under all its flight numbers, including this one, and those ran 82.9% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight trails by 4 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2600thin sample | 302 | 76.9% | 55 min | 0.33% | B+ |
| All Delta Air Lines on ATL–RDU | 3,811 | 82.9% | 58 min | 1.34% | B |
| All carriers on ATL–RDU | 4,642 | 80.0% | 62 min | 1.53% | B |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 2600 quarter by quarter
DL 2600 did not run the same all year. Its best quarter was Oct–Dec 2025 at 86.4% on time and its weakest Jul–Sep 2026 at 63.3%, a swing of 23 points on roughly 60 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 flights76.7%
- Oct–Dec 202566 flights86.4%
- Jan–Mar 202654 flights83.0%
- Apr–Jun 202690 flights75.6%
- Jul–Sep 202662 flights63.3%
Scale runs 55% to 90%.
By weekday, DL 2600 did best on Wednesday at 90.9% on time and worst on Friday at 62.5%. Each day rests on about 43 flights, so a gap of 28 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 2600 runs when it is late
The 69 late arrivals split 30 under half an hour, 16 between 30 and 60 minutes, and 23 an hour or more.
- 15+ min early28 flights9.4%
- Within 15 min202 flights67.6%
- 15–29 min late30 flights10.0%
- 30–59 min late16 flights5.4%
- 1–2 hours late14 flights4.7%
- 2+ hours late9 flights3.0%
Scale runs 0% to 100%.
Share of 299 completed flights by arrival against schedule.
15 of 65 late departures made up the time and arrived on time, 23% of them. In the other direction, 19 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at RDU.
The worst days
Worst days for DL 2600
The latest arrival of the period was on 16 March 2026, 3 hours 49 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 16 March 2026 | 3 hours 49 minutes | Carrier |
| 2 October 2025 | 3 hours 29 minutes | Carrier |
| 16 July 2026 | 3 hours 9 minutes | Carrier |
| 14 June 2026 | 3 hours 4 minutes | Late-arriving aircraft |
| 28 March 2026 | 2 hours 40 minutes | Carrier |
Delay causes
Why DL 2600 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 3,821 reported delay minutes.
- 39%Carrier
- 29%Late-arriving aircraft
- 24%National Airspace System
- 8%Extreme weather
The largest share of delay minutes, 39%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,473 of the 3,821 delay minutes reported here. The split is drawn from 3,821 delay minutes reported on DL 2600.
Cancellations are rare at 0.33%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
7.7% 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.
The same number turns up on one other city pair in the data, including RDU to ATL (190), but none flew often enough under DL 2600 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ATL to RDU only.
One caution: this is a thin sample. 302 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 2600
For a booking, read DL 2600 as 76.9% on time with 0.33% cancelled over 302 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- ATL to RDU, every carrier and departure
- RDU to ATL, the return direction
- Delta Air Lines 2052 on the same route90.5%
- Delta Air Lines 1518 on the same route76.0%
- Frontier Airlines 1168 on the same route69.0%
- Frontier Airlines 1670 on the same route50.8%
- Delta Air Lines 1699 on the same route93.2%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Raleigh-Durham International (RDU) 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.