Flight number record
DL 2345
Delta Air Lines · Atlanta to Fort Lauderdale
- Route
- ATL → FLL
- Departs
- 15:30
- Flights
- 342
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2345, check with Delta Air Lines.
DL 2345 draws a C+. About one flight in three arrives at least 15 minutes late, and the typical late arrival is about 55 minutes behind schedule. Build slack into anything you connect to. That rests on 342 flights, with a median arrival 5 minutes late.
The national on-time rate over the same period is 77.6%, so DL 2345 runs 12 points behind the country as a whole. Across a thousand flights that is about 122 extra late arrivals.
Key figures
On time
65.4%
Arrivals under 15 minutes late, of 341 completed flights
Avg delay
54 min
Across delayed arrivals only, not all flights
Cancelled
0.29%
National rate is 1.81%
1 hour+ late
11.7%
National rate is 8.1%
These figures cover 342 flights between July 2025 and June 2026. Beyond the headline rate, 11.7% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Schedule
When DL 2345 flies
DL 2345 flies ATL to FLL without a single fixed slot. Its most common scheduled departure was 15:30, used on 68 of 342 flights, with 15:25 (62 flights) and 15:45 (55 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 15:3068 flights19.9%
- Departs 15:2562 flights18.1%
- Departs 15:4555 flights16.1%
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 15:30 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and DL 2345 runs 7 points worse at 65.4%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
DL 2345 next to ATL to FLL
Every carrier on ATL to FLL combined arrived on time 70.7% of the time across 7,189 flights, so DL 2345 is 5 points behind it. Delta flew 4,272 flights on the same city pair under all its flight numbers, including this one, and those ran 73.5% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 16 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2345thin sample | 342 | 65.4% | 54 min | 0.29% | C+ |
| All Delta Air Lines on ATL–FLL | 4,272 | 73.5% | 55 min | 1.57% | C |
| All carriers on ATL–FLL | 7,189 | 70.7% | 64 min | 2.14% | C |
| Delta Air Lines, whole network | 1,038,570 | 81.6% | 71 min | 1.62% | B |
Across the year
DL 2345 quarter by quarter
DL 2345 did not run the same all year. Its best quarter was Apr–Jun 2026 at 73.6% on time and its weakest Jul–Sep 2025 at 60.0%, a swing of 14 points on roughly 86 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 202570 flights60.0%
- Oct–Dec 202591 flights62.6%
- Jan–Mar 202690 flights64.0%
- Apr–Jun 202691 flights73.6%
Scale runs 50% to 80%. Rows with fewer than 30 flights show a dash.
By weekday, DL 2345 did best on Thursday at 76.0% on time and worst on Sunday at 56.0%. Each day rests on about 49 flights, so a gap of 20 points is worth noticing but could still narrow in another year.
Delay causes
Why DL 2345 runs late
One category carries most of the weight here. Carrier accounts for 46% of the 6,371 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.
- 46%Carrier
- 30%National Airspace System
- 20%Late-arriving aircraft
- 2%Extreme weather
- 1%Security
The largest share of delay minutes, 46%, 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 2,929 of the 6,371 delay minutes reported here. The split is drawn from 6,371 delay minutes reported on DL 2345.
Cancellations are rare at 0.29%, below the national 1.81% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 11.7% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
The 581 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
DL 2345 is not only a ATL to FLL flight. It also flew FLL to ATL (336 flights, 68.0% 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. 342 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 |
|---|---|---|---|---|---|
| FLL to ATLthin sample | 336 | 68.0% | 71 min | 0.30% | C+ |
What to do with this
Booking DL 2345
For a booking, DL 2345 is one of the weaker ways to fly ATL to FLL: 5 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 FLL, every carrier and departure
- FLL to ATL, the return direction
- Delta Air Lines 1341 on the same route70.9%
- Delta Air Lines 1512 on the same route81.7%
- Delta Air Lines 1489 on the same route68.5%
- Delta Air Lines 1295 on the same route67.3%
- Delta Air Lines 1334 on the same route89.2%
- Delta Air Lines 1413 on the same route69.7%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Fort Lauderdale-Hollywood International (FLL) 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
- How often a connection fails at the major US hubs
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.