Flight number record

DL 3072

Delta Air Lines · Atlanta to Knoxville

Route: ATL → TYS
Departs: 22:50
Flights: 320
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 3072, check with Delta Air Lines.

DL 3072 lands a B, 4 points better than the national rate of 77.6%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 320 flights, with a median arrival 8 minutes early.

Set against the rest of the country, DL 3072's record is 4 points better than the US average of 77.6%. That gap is worth roughly 42 fewer late arrivals for every thousand flights.

On time

81.8%

Arrivals under 15 minutes late, of 313 completed flights

Avg delay

72 min

Across delayed arrivals only, not all flights

Cancelled

1.88%

National rate is 1.81%

1 hour+ late

5.8%

National rate is 8.1%

These figures cover 320 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 3072 flies

DL 3072 flies ATL to TYS without a single fixed slot. Its most common scheduled departure was 22:50, used on 86 of 320 flights, with 23:00 (60 flights) and 22:59 (48 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 22:5086 flights26.9%
Departs 23:0060 flights18.8%
Departs 22:5948 flights15.0%

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 22:50 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and DL 3072 runs 11 points better at 81.8%. 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 3072 next to ATL to TYS

Every carrier on ATL to TYS combined arrived on time 82.8% of the time across 1,722 flights, so DL 3072 is about level with it. Across its whole network Delta Air Lines managed 81.6%, close to this flight's figure.

DL 3072 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 3072thin sample	320	81.8%	72 min	1.88%	B
All Delta Air Lines on ATL–TYS	1,722	82.8%	58 min	1.86%	B
All carriers on ATL–TYS	1,722	82.8%	58 min	1.86%	B
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 3072 quarter by quarter

Quarter by quarter DL 3072 held fairly steady: 80.9% in Jul–Sep 2025, 86.7% in Oct–Dec 2025, 78.3% in Jan–Mar 2026 and 82.7% in Apr–Jun 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202591 flights80.9%
Oct–Dec 202562 flights86.7%
Jan–Mar 202686 flights78.3%
Apr–Jun 202681 flights82.7%

Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, DL 3072 ranged from 77.1% on Friday to 87.2% on Saturday. With about 46 flights behind each day, a spread of 10 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why DL 3072 runs late

One category carries most of the weight here. Carrier accounts for 72% of the 4,124 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.

Carrier
72%
Late-arriving aircraft
18%
National Airspace System
7%
Extreme weather
3%

The largest share of delay minutes, 72%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 2,969 of the 4,124 delay minutes reported here. The split is drawn from 4,124 delay minutes reported on DL 3072.

Cancellations sit at 1.88% against a national 1.81%, which is ordinary. Diversions add another 0.31%.

Connections and routes

What a delay on this flight costs

5.8% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.

Every one of the 320 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. 320 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 81.8% on time with 1.88% cancelled over 320 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

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.

Key figures