Flight number record

DL 3020

Delta Air Lines · Huntsville to Atlanta

Route: HSV → ATL
Departs: 06:00
Flights: 322
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 3020, check with Delta Air Lines.

DL 3020 earns an A. Nearly every flight arrives inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 18 points better than the national rate of 77.6%. When something does go wrong the average delay runs about 2.1 hours. That rests on 322 flights, with a median arrival 17 minutes early.

Set against the rest of the country, DL 3020's record is 18 points better than the US average of 77.6%. That gap is worth roughly 176 fewer late arrivals for every thousand flights.

On time

95.2%

Arrivals under 15 minutes late, of 314 completed flights

Avg delay

128 min

Across delayed arrivals only, not all flights

Cancelled

2.48%

National rate is 1.81%

1 hour+ late

3.2%

National rate is 8.1%

These figures cover 322 flights between July 2025 and June 2026. The median arrival is 17 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 3020 flies

DL 3020 flies HSV to ATL without a single fixed slot. Its most common scheduled departure was 06:00, used on 101 of 322 flights, with 05:24 (59 flights) and 05:17 (36 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 06:00101 flights31.4%
Departs 05:2459 flights18.3%
Departs 05:1736 flights11.2%

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 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 3020 runs 6 points better at 95.2%. 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 3020 next to HSV to ATL

Every carrier on HSV to ATL combined arrived on time 90.1% of the time across 2,237 flights, so DL 3020 is 5 points ahead of it. Delta flew 2,230 flights on the same city pair under all its flight numbers, including this one, and those ran 90.1% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 14 points.

DL 3020 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 3020thin sample	322	95.2%	128 min	2.48%	A
All Delta Air Lines on HSV–ATL	2,230	90.1%	79 min	1.84%	A
All carriers on HSV–ATL	2,237	90.1%	79 min	1.83%	A
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 3020 quarter by quarter

Quarter by quarter DL 3020 held fairly steady: 98.9% in Jul–Sep 2025, 94.4% in Oct–Dec 2025, 93.1% in Jan–Mar 2026 and 93.5% 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 flights98.9%
Oct–Dec 202592 flights94.4%
Jan–Mar 202690 flights93.1%
Apr–Jun 202648 flights93.5%

Scale runs 85% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, DL 3020 ranged from 89.4% on Tuesday to 100.0% on Thursday. With about 46 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why DL 3020 runs late

One category carries most of the weight here. Carrier accounts for 78% of the 1,912 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
78%
National Airspace System
16%
Extreme weather
5%

The largest share of delay minutes, 78%, 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 1,493 of the 1,912 delay minutes reported here. The split is drawn from 1,912 delay minutes reported on DL 3020.

Cancellations sit at 2.48% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 3.2% 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.

Every one of the 322 flights under DL 3020 in the data flew HSV 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. 322 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 3020

For a booking, read DL 3020 as 95.2% on time with 2.48% cancelled over 322 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