Flight number record
DL 3072
Delta Air Lines · Atlanta to Knoxville
- Route
- ATL → TYS
- Departs
- 22:50
- Flights
- 303
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 3072, check with Delta Air Lines.
DL 3072 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 about an hour on average. That rests on 303 flights, with a median arrival 7 minutes early.
Key figures
On time
80.1%
Arrivals under 15 minutes late, of 297 completed flights
Avg delay
64 min
Across delayed arrivals only, not all flights
Cancelled
1.65%
National rate is 1.89%
1 hour+ late
5.4%
National rate is 8.3%
These figures cover 303 flights between September 2025 and August 2026. The median arrival is 7 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 3072 flies
DL 3072 flies ATL to TYS without a single fixed slot. Its most common scheduled departure was 22:50, used on 65 of 303 flights, with 22:53 (51 flights) and 22:59 (48 flights) next.
- Departs 22:5065 flights21.5%
- Departs 22:5351 flights16.8%
- Departs 22:5948 flights15.8%
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 22:50 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and DL 3072 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 3072 next to ATL to TYS
Every carrier on ATL to TYS combined arrived on time 82.6% of the time across 1,726 flights, so DL 3072 is 3 points behind it. 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 3072thin sample | 303 | 80.1% | 64 min | 1.65% | B |
| All Delta Air Lines on ATL–TYS | 1,726 | 82.6% | 57 min | 1.74% | B |
| All carriers on ATL–TYS | 1,726 | 82.6% | 57 min | 1.74% | B |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 3072 quarter by quarter
DL 3072 did not run the same all year. Its best quarter was Oct–Dec 2025 at 86.7% on time and its weakest Jul–Sep 2026 at 59.1%, a swing of 28 points on roughly 76 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 flights—
- Oct–Dec 202562 flights86.7%
- Jan–Mar 202686 flights78.3%
- Apr–Jun 202681 flights82.7%
- Jul–Sep 202644 flights59.1%
Scale runs 50% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, DL 3072 did best on Saturday at 93.3% on time and worst on Friday at 73.5%. Each day rests on about 43 flights, so a gap of 20 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 3072 runs when it is late
The 59 late arrivals split 20 under half an hour, 23 between 30 and 60 minutes, and 16 an hour or more.
- 15+ min early45 flights15.2%
- Within 15 min193 flights65.0%
- 15–29 min late20 flights6.7%
- 30–59 min late23 flights7.7%
- 1–2 hours late8 flights2.7%
- 2+ hours late8 flights2.7%
Scale runs 0% to 100%.
Share of 297 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 57 departures that left 15 minutes late or more, only 4 made it up before arrival. 6 flights left on time and still arrived late.
The worst days
Worst days for DL 3072
The latest arrival of the period was on 8 December 2025, 8 hours 6 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 |
|---|---|---|
| 8 December 2025 | 8 hours 6 minutes | Carrier |
| 14 June 2026 | 3 hours 57 minutes | Carrier |
| 9 July 2026 | 3 hours 19 minutes | Extreme weather |
| 25 May 2026 | 2 hours 45 minutes | Carrier |
| 6 August 2026 | 2 hours 29 minutes | Carrier |
Delay causes
Why DL 3072 runs late
Carrier accounts for 56% of the 3,748 delay minutes carriers reported here, and the remaining four split what is left.
- 56%Carrier
- 24%Late-arriving aircraft
- 12%Extreme weather
- 9%National Airspace System
Extreme weather accounts for 12% 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 2.0 times the usual weather exposure. The split is drawn from 3,748 delay minutes reported on DL 3072.
Cancellations sit at 1.65% against a national 1.89%, which is ordinary. Diversions add another 0.33%.
Connections and routes
What a delay on this flight costs
5.4% 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.
Every one of the 303 flights under DL 3072 in the data flew ATL to TYS. 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. 303 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 3072
For a booking, read DL 3072 as 80.1% on time with 1.65% cancelled over 303 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- ATL to TYS, every carrier and departure
- TYS to ATL, the return direction
- Delta Air Lines 1743 on the same route91.9%
- 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.