Flight number record
DL 2976
Delta Air Lines · Austin to Atlanta
- Route
- AUS → ATL
- Departs
- 10:35
- Flights
- 364
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2976, check with Delta Air Lines.
DL 2976 earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 12 points better than the national rate of 77.6%. When something does go wrong the average delay runs about 50 minutes. That rests on 364 flights, with a median arrival 9 minutes early.
Set against the rest of the country, DL 2976's record is 12 points better than the US average of 77.6%. That gap is worth roughly 123 fewer late arrivals for every thousand flights.
Key figures
On time
89.9%
Arrivals under 15 minutes late, of 355 completed flights
Avg delay
51 min
Across delayed arrivals only, not all flights
Cancelled
2.20%
National rate is 1.81%
1 hour+ late
1.1%
National rate is 8.1%
These figures cover 364 flights between July 2025 and June 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.
Schedule
When DL 2976 flies
DL 2976 flies AUS to ATL without a single fixed slot. Its most common scheduled departure was 10:35, used on 59 of 364 flights, with 10:43 (58 flights) and 10:55 (58 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 10:3559 flights16.2%
- Departs 10:4358 flights15.9%
- Departs 10:5558 flights15.9%
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 10:35 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and DL 2976 runs 6 points better at 89.9%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
Against the route
DL 2976 next to AUS to ATL
Every carrier on AUS to ATL combined arrived on time 82.0% of the time across 4,544 flights, so DL 2976 is 8 points ahead of it. Delta flew 3,232 flights on the same city pair under all its flight numbers, including this one, and those ran 85.6% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 8 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2976thin sample | 364 | 89.9% | 51 min | 2.20% | A |
| All Delta Air Lines on AUS–ATL | 3,232 | 85.6% | 73 min | 1.49% | A |
| All carriers on AUS–ATL | 4,544 | 82.0% | 68 min | 1.43% | B |
| Delta Air Lines, whole network | 1,038,570 | 81.6% | 71 min | 1.62% | B |
Across the year
DL 2976 quarter by quarter
Quarter by quarter DL 2976 held fairly steady: 84.6% in Jul–Sep 2025, 94.4% in Oct–Dec 2025, 92.0% in Jan–Mar 2026 and 88.5% in Apr–Jun 2026. A spread of 10 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202592 flights84.6%
- Oct–Dec 202592 flights94.4%
- Jan–Mar 202689 flights92.0%
- Apr–Jun 202691 flights88.5%
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, DL 2976 did best on Thursday at 98.1% on time and worst on Monday at 83.7%. Each day rests on about 52 flights, so a gap of 14 points is worth noticing but could still narrow in another year.
Delay causes
Why DL 2976 runs late
One category carries most of the weight here. Carrier accounts for 46% of the 1,824 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.
- 46%Carrier
- 35%Late-arriving aircraft
- 20%National Airspace System
35% 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 1,824 reported delay minutes here, that single category outweighs weather by 35 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 1,824 delay minutes reported on DL 2976.
Cancellations sit at 2.20% against a national 1.81%, which is ordinary. Diversions add another 0.27%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 1.1% land an hour or more behind schedule, against 8.1% 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.
The 813 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.
DL 2976 is not only a AUS to ATL flight. It also flew ATL to AUS (364 flights, 93.2% 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. 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.
| Also flown as | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| ATL to AUSthin sample | 364 | 93.2% | 36 min | 3.02% | A− |
What to do with this
Booking DL 2976
For a booking, read DL 2976 as 89.9% on time with 2.20% cancelled over 364 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- AUS to ATL, every carrier and departure
- ATL to AUS, the return direction
- Delta Air Lines 1258 on the same route93.9%
- Delta Air Lines 1344 on the same route96.6%
- Delta Air Lines 2899 on the same route87.8%
- Delta Air Lines 2104 on the same route79.2%
- Delta Air Lines 1397 on the same route78.1%
- Delta Air Lines 1491 on the same route74.8%
- Austin-Bergstrom International (AUS) delay statistics
- Hartsfield-Jackson Atlanta International (ATL) 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.