Flight number record
DL 2899
Delta Air Lines · Austin to Atlanta
- Route
- AUS → ATL
- Departs
- 08:00
- Flights
- 364
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2899, check with Delta Air Lines.
DL 2899 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 10 points better than the national rate of 77.6%. When something does go wrong the average delay runs close to two hours. That rests on 364 flights, with a median arrival 8 minutes early.
Set against the rest of the country, DL 2899's record is 10 points better than the US average of 77.6%. That gap is worth roughly 102 fewer late arrivals for every thousand flights.
Key figures
On time
87.8%
Arrivals under 15 minutes late, of 360 completed flights
Avg delay
108 min
Across delayed arrivals only, not all flights
Cancelled
0.82%
National rate is 1.81%
1 hour+ late
3.9%
National rate is 8.1%
These figures cover 364 flights between July 2025 and June 2026. The median arrival is 8 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 2899 flies
DL 2899 flies AUS to ATL without a single fixed slot. Its most common scheduled departure was 08:00, used on 208 of 364 flights, with 08:25 (60 flights) and 08:20 (50 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 08:00208 flights57.1%
- Departs 08:2560 flights16.5%
- Departs 08:2050 flights13.7%
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 08:00 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and DL 2899 runs 4 points better at 87.8%. 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 2899 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 2899 is 6 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 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2899thin sample | 364 | 87.8% | 108 min | 0.82% | 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 2899 quarter by quarter
Quarter by quarter DL 2899 held fairly steady: 91.2% in Jul–Sep 2025, 88.9% in Oct–Dec 2025, 85.2% in Jan–Mar 2026 and 85.7% in Apr–Jun 2026. A spread of 6 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202592 flights91.2%
- Oct–Dec 202591 flights88.9%
- Jan–Mar 202690 flights85.2%
- Apr–Jun 202691 flights85.7%
Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, DL 2899 did best on Friday at 96.1% on time and worst on Sunday at 75.0%. Each day rests on about 52 flights, so a gap of 21 points is worth noticing but could still narrow in another year.
Delay causes
Why DL 2899 runs late
One category carries most of the weight here. Carrier accounts for 66% of the 4,768 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.
- 66%Carrier
- 18%Extreme weather
- 17%National Airspace System
Extreme weather accounts for 18% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.9 times the usual weather exposure. The split is drawn from 4,768 delay minutes reported on DL 2899.
Cancellations are rare at 0.82%, below the national 1.81% 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
Badly late arrivals are rare here: only 3.9% 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.
Every one of the 364 flights under DL 2899 in the data flew AUS to ATL. 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 2899
For a booking, DL 2899 has one of the better records a US domestic flight can show: 87.8% on time and 0.82% cancelled. That is a base rate, not a promise about any single 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 2976 on the same route89.9%
- 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
- 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.