Flight number record
DL 2992
Delta Air Lines · Miami to Raleigh
- Route
- MIA → RDU
- Departs
- 18:40
- Flights
- 360
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2992, check with Delta Air Lines.
DL 2992 draws a D. About one flight in three arrives at least 15 minutes late, and the typical late arrival is an hour and a half behind schedule. Build slack into anything you connect to. That rests on 360 flights, with a median arrival 1 minute early.
The national on-time rate over the same period is 77.6%, so DL 2992 runs 13 points behind the country as a whole. Across a thousand flights that is about 129 extra late arrivals.
Key figures
On time
64.7%
Arrivals under 15 minutes late, of 351 completed flights
Avg delay
95 min
Across delayed arrivals only, not all flights
Cancelled
2.50%
National rate is 1.81%
1 hour+ late
17.9%
National rate is 8.1%
These figures cover 360 flights between July 2025 and June 2026. Beyond the headline rate, 17.9% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Schedule
When DL 2992 flies
DL 2992 flies MIA to RDU without a single fixed slot. Its most common scheduled departure was 18:40, used on 57 of 360 flights, with 17:35 (36 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 18:4057 flights15.8%
- Departs 17:3536 flights10.0%
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 18:40 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and DL 2992 runs 4 points worse at 64.7%. 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 2992 next to MIA to RDU
Every carrier on MIA to RDU combined arrived on time 71.4% of the time across 2,347 flights, so DL 2992 is 7 points behind it. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 17 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2992thin sample | 360 | 64.7% | 95 min | 2.50% | D |
| All Delta Air Lines on MIA–RDUthin sample | 360 | 64.7% | 95 min | 2.50% | D |
| All carriers on MIA–RDU | 2,347 | 71.4% | 76 min | 1.70% | C |
| Delta Air Lines, whole network | 1,038,570 | 81.6% | 71 min | 1.62% | B |
Across the year
DL 2992 quarter by quarter
DL 2992 did not run the same all year. Its best quarter was Oct–Dec 2025 at 75.9% on time and its weakest Jul–Sep 2025 at 53.9%, a swing of 22 points on roughly 90 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 flights53.9%
- Oct–Dec 202587 flights75.9%
- Jan–Mar 202690 flights65.5%
- Apr–Jun 202691 flights63.6%
Scale runs 45% to 80%. Rows with fewer than 30 flights show a dash.
By weekday, DL 2992 did best on Monday at 78.0% on time and worst on Sunday at 48.0%. Each day rests on about 51 flights, so a gap of 30 points is worth noticing but could still narrow in another year.
Delay causes
Why DL 2992 runs late
One category carries most of the weight here. Late-arriving aircraft accounts for 71% of the 12,000 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.
- 71%Late-arriving aircraft
- 11%Carrier
- 10%Extreme weather
- 8%National Airspace System
71% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 12,000 reported delay minutes here, that single category outweighs weather by 7 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 11,756 delay minutes reported on DL 2992.
Cancellations run at 2.50%, against 1.81% 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
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 17.9% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
The 700 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
Every one of the 360 flights under DL 2992 in the data flew MIA to RDU. 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. 360 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 2992
For a booking, the cancellation rate is the figure to plan around on DL 2992: 2.50% of its 360 scheduled flights did not operate. A late arrival costs an hour and a half, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- MIA to RDU, every carrier and departure
- RDU to MIA, the return direction
- American Airlines 1566 on the same route71.5%
- Miami International (MIA) 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
- 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.