Flight number record
DL 3043
Delta Air Lines · Atlanta to Melbourne
- Route
- ATL → MLB
- Departs
- 16:25
- Flights
- 357
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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 77.3%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 357 flights, with a median arrival 6 minutes early.
Key figures
On time
77.1%
Arrivals under 15 minutes late, of 349 completed flights
Avg delay
56 min
Across delayed arrivals only, not all flights
Cancelled
1.96%
National rate is 1.89%
1 hour+ late
6.0%
National rate is 8.3%
These figures cover 357 flights between September 2025 and August 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.
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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 67 of 357 flights, with 16:30 (47 flights) next.
- Departs 16:2567 flights18.8%
- Departs 16:3047 flights13.2%
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 16:25 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and DL 3043 runs 5 points better at 77.1%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
DL 3043 next to ATL to MLB
Every carrier on ATL to MLB combined arrived on time 83.8% of the time across 1,451 flights, so DL 3043 is 7 points behind it. Across its whole network Delta Air Lines managed 81.1%, which this flight trails by 4 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 3043thin sample | 357 | 77.1% | 56 min | 1.96% | B |
| All Delta Air Lines on ATL–MLB | 1,451 | 83.8% | 57 min | 1.38% | B |
| All carriers on ATL–MLB | 1,451 | 83.8% | 57 min | 1.38% | B |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | 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 Jul–Sep 2026 at 66.1%, a swing of 18 points on roughly 71 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 flights83.3%
- Oct–Dec 202586 flights79.5%
- Jan–Mar 202689 flights72.7%
- Apr–Jun 202691 flights84.3%
- Jul–Sep 202661 flights66.1%
Scale runs 60% to 90%.
By weekday, DL 3043 did best on Wednesday at 84.0% on time and worst on Friday at 69.6%. Each day rests on about 51 flights, so a gap of 14 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 3043 runs when it is late
The 80 late arrivals split 34 under half an hour, 25 between 30 and 60 minutes, and 21 an hour or more.
- 15+ min early76 flights21.8%
- Within 15 min193 flights55.3%
- 15–29 min late34 flights9.7%
- 30–59 min late25 flights7.2%
- 1–2 hours late14 flights4.0%
- 2+ hours late7 flights2.0%
Scale runs 0% to 100%.
Share of 349 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 74 departures that left 15 minutes late or more, only 7 made it up before arrival. 13 flights left on time and still arrived late.
The worst days
Worst days for DL 3043
The latest arrival of the period was on 9 July 2026, 5 hours 48 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in July 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 9 July 2026 | 5 hours 48 minutes | Carrier |
| 16 March 2026 | 5 hours 37 minutes | National Airspace System |
| 7 December 2025 | 3 hours 23 minutes | Late-arriving aircraft |
| 3 July 2026 | 3 hours 16 minutes | Late-arriving aircraft |
| 13 July 2026 | 2 hours 43 minutes | Carrier |
Delay causes
Why DL 3043 runs late
Carrier accounts for 42% of the 4,497 delay minutes carriers reported here, and the remaining four split what is left.
- 42%Carrier
- 27%National Airspace System
- 27%Late-arriving aircraft
- 3%Extreme weather
The largest share of delay minutes, 42%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,904 of the 4,497 delay minutes reported here. The split is drawn from 4,497 delay minutes reported on DL 3043.
Cancellations sit at 1.96% against a national 1.89%, which is ordinary. Diversions add another 0.28%.
Connections and routes
What a delay on this flight costs
6.0% 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.
DL 3043 is not only a ATL to MLB flight. It also flew MLB to ATL (357 flights, 81.6% 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. 357 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.
| Also flown as | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| MLB to ATLthin sample | 357 | 81.6% | 84 min | 2.52% | 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: 7 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.
Related
Where to go next
- ATL to MLB, every carrier and departure
- MLB to ATL, the return direction
- Delta Air Lines 2435 on the same route82.5%
- Delta Air Lines 3118 on the same route90.8%
- Delta Air Lines 3127 on the same route84.5%
- 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.