Flight number record

DL 3043

Delta Air Lines · Atlanta to Melbourne

Route: ATL → MLB
Departs: 16:25
Flights: 354
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 3043, check with Delta Air Lines.

DL 3043 lands a B, level with the national rate of 77.6%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by roughly 50 minutes on average. That is a workable record, not a spotless one. That rests on 354 flights, with a median arrival 6 minutes early.

On time

78.1%

Arrivals under 15 minutes late, of 347 completed flights

Avg delay

49 min

Across delayed arrivals only, not all flights

Cancelled

1.98%

National rate is 1.81%

1 hour+ late

4.6%

National rate is 8.1%

These figures cover 354 flights between July 2025 and June 2026. The median arrival is 6 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 3043 flies

DL 3043 flies ATL to MLB without a single fixed slot. Its most common scheduled departure was 16:25, used on 38 of 354 flights. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 16:2538 flights10.7%

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 16:25 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and DL 3043 runs 6 points better at 78.1%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

DL 3043 next to ATL to MLB

Every carrier on ATL to MLB combined arrived on time 84.2% of the time across 1,448 flights, so DL 3043 is 6 points behind it. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 4 points.

DL 3043 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 3043thin sample	354	78.1%	49 min	1.98%	B
All Delta Air Lines on ATL–MLB	1,448	84.2%	61 min	1.31%	B
All carriers on ATL–MLB	1,448	84.2%	61 min	1.31%	B
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 3043 quarter by quarter

DL 3043 did not run the same all year. Its best quarter was Apr–Jun 2026 at 84.3% on time and its weakest Jan–Mar 2026 at 72.7%, a swing of 12 points on roughly 89 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 202588 flights75.9%
Oct–Dec 202586 flights79.5%
Jan–Mar 202689 flights72.7%
Apr–Jun 202691 flights84.3%

Scale runs 65% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, DL 3043 did best on Saturday at 83.7% on time and worst on Sunday at 70.0%. Each day rests on about 51 flights, so a gap of 14 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 3043 runs late

One category carries most of the weight here. Carrier accounts for 44% of the 3,692 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
44%
National Airspace System
25%
Late-arriving aircraft
22%
Extreme weather
9%

The largest share of delay minutes, 44%, 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 1,618 of the 3,692 delay minutes reported here. The split is drawn from 3,692 delay minutes reported on DL 3043.

Cancellations sit at 1.98% 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 4.6% 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.

DL 3043 is not only a ATL to MLB flight. It also flew MLB to ATL (354 flights, 83.8% on time) often enough to be scored on its own. Airlines attach one number to several legs of an aircraft's day, and each leg keeps its own record here, so check which city pair is on your booking before reading a rate.

One caution: this is a thin sample. 354 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.

Other routes flown as DL 3043
Also flown as	Flights	On time	Avg delay	Cancelled	Grade
MLB to ATLthin sample	354	83.8%	70 min	2.26%	B

What to do with this

Booking DL 3043

For a booking, DL 3043 is one of the weaker ways to fly ATL to MLB: 6 points below the route as a whole. If the schedule allows, compare it with the other departures listed on the route page before settling on this one.

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