Flight number record

DL 3079

Delta Air Lines · Atlanta to Gainesville

Route: ATL → GNV
Departs: 21:25
Flights: 348
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s DL 3079, check with Delta Air Lines.

DL 3079 earns a B. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 348 flights, with a median arrival 9 minutes early.

Set against the rest of the country, DL 3079's record is 7 points better than the US average of 77.3%. That gap is worth roughly 72 fewer late arrivals for every thousand flights.

On time

84.5%

Arrivals under 15 minutes late, of 342 completed flights

Avg delay

80 min

Across delayed arrivals only, not all flights

Cancelled

1.72%

National rate is 1.89%

1 hour+ late

5.8%

National rate is 8.3%

These figures cover 348 flights between September 2025 and August 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.

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Schedule

When DL 3079 flies

DL 3079 flies ATL to GNV without a single fixed slot. Its most common scheduled departure was 21:25, used on 117 of 348 flights, with 21:32 (111 flights) and 21:20 (61 flights) next.

Departs 21:25117 flights33.6%
Departs 21:32111 flights31.9%
Departs 21:2061 flights17.5%

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 21:25 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and DL 3079 runs 14 points better at 84.5%. 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 3079 next to ATL to GNV

Every carrier on ATL to GNV combined arrived on time 84.8% of the time across 1,596 flights, so DL 3079 is about level with it. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 3 points.

DL 3079 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 3079thin sample	348	84.5%	80 min	1.72%	B
All Delta Air Lines on ATL–GNV	1,596	84.8%	64 min	1.82%	B
All carriers on ATL–GNV	1,596	84.8%	64 min	1.82%	B
Delta Air Lines, whole network	1,039,517	81.1%	71 min	1.74%	B

Across the year

DL 3079 quarter by quarter

DL 3079 did not run the same all year. Its best quarter was Jul–Sep 2025 at 100.0% on time and its weakest Jul–Sep 2026 at 61.3%, a swing of 39 points on roughly 70 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 flights100.0%
Oct–Dec 202579 flights89.6%
Jan–Mar 202686 flights89.2%
Apr–Jun 202691 flights86.7%
Jul–Sep 202662 flights61.3%

Scale runs 55% to 100%.

By weekday, DL 3079 did best on Tuesday at 96.0% on time and worst on Friday at 75.5%. Each day rests on about 50 flights, so a gap of 21 points is worth noticing but could still narrow in another year.

Arrival by arrival

How late DL 3079 runs when it is late

DL 3079 often beats the schedule: 90 of 342 completed flights, 26%, arrived 15 minutes or more early. The 53 late arrivals split 18 under half an hour, 15 between 30 and 60 minutes, and 20 an hour or more.

15+ min early90 flights26.3%
Within 15 min199 flights58.2%
15–29 min late18 flights5.3%
30–59 min late15 flights4.4%
1–2 hours late10 flights2.9%
2+ hours late10 flights2.9%

Scale runs 0% to 100%.

Share of 342 completed flights by arrival against schedule.

Time lost at the gate mostly stays lost. Of 52 departures that left 15 minutes late or more, only 2 made it up before arrival. Only 3 left on time and still arrived late.

The worst days

Worst days for DL 3079

The latest arrival of the period was on 9 March 2026, 10 hours 59 minutes behind schedule; most of its delay minutes were filed as extreme weather. Three of the five worst days fell in March 2026.

The latest arrivals of DL 3079 in the period
Date	Arrived late by	Largest filed cause
9 March 2026	10 hours 59 minutes	Extreme weather
16 March 2026	4 hours 27 minutes	Late-arriving aircraft
6 March 2026	4 hours 23 minutes	Extreme weather
17 May 2026	3 hours 20 minutes	Late-arriving aircraft
17 July 2026	2 hours 43 minutes	Late-arriving aircraft

Delay causes

Why DL 3079 runs late

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 4,237 reported delay minutes.

Late-arriving aircraft
41%
Carrier
27%
Extreme weather
25%
National Airspace System
7%

Extreme weather accounts for 25% 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 4.1 times the usual weather exposure. The split is drawn from 4,237 delay minutes reported on DL 3079.

Cancellations sit at 1.72% against a national 1.89%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

5.8% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.

Every one of the 348 flights under DL 3079 in the data flew ATL to GNV. 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. 348 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 3079

For a booking, read DL 3079 as 84.5% on time with 1.72% cancelled over 348 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, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures