Flight number record

DL 1334

Delta Air Lines · Atlanta to Fort Lauderdale

Route: ATL → FLL
Departs: 07:25
Flights: 347
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s DL 1334, check with Delta Air Lines.

DL 1334 earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 14 points better than the national rate of 77.3%. When something does go wrong the average delay runs about 45 minutes. That rests on 347 flights, with a median arrival 10 minutes early.

Set against the rest of the country, DL 1334's record is 14 points better than the US average of 77.3%. That gap is worth roughly 135 fewer late arrivals for every thousand flights.

On time

90.8%

Arrivals under 15 minutes late, of 336 completed flights

Avg delay

44 min

Across delayed arrivals only, not all flights

Cancelled

2.88%

National rate is 1.89%

1 hour+ late

1.2%

National rate is 8.3%

These figures cover 347 flights between September 2025 and August 2026. The median arrival is 10 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 1334 flies

DL 1334 flies ATL to FLL without a single fixed slot. Its most common scheduled departure was 07:25, used on 189 of 347 flights, with 07:00 (146 flights) next.

Departs 07:25189 flights54.5%
Departs 07:00146 flights42.1%

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 07:25 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 1334 runs level with that at 90.8%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

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Against the route

DL 1334 next to ATL to FLL

Every carrier on ATL to FLL combined arrived on time 70.7% of the time across 7,371 flights, so DL 1334 is 20 points ahead of it. Delta flew 4,383 flights on the same city pair under all its flight numbers, including this one, and those ran 73.9% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 10 points.

DL 1334 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 1334thin sample	347	90.8%	44 min	2.88%	A
All Delta Air Lines on ATL–FLL	4,383	73.9%	57 min	1.78%	C
All carriers on ATL–FLL	7,371	70.7%	66 min	2.46%	C
Delta Air Lines, whole network	1,039,517	81.1%	71 min	1.74%	B

Across the year

DL 1334 quarter by quarter

Quarter by quarter DL 1334 held fairly steady: 90.5% in Oct–Dec 2025, 87.8% in Jan–Mar 2026, 92.0% in Apr–Jun 2026 and 91.4% in Jul–Sep 2026. A spread of 4 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202525 flights—
Oct–Dec 202585 flights90.5%
Jan–Mar 202684 flights87.8%
Apr–Jun 202691 flights92.0%
Jul–Sep 202662 flights91.4%

Scale runs 80% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, DL 1334 ranged from 87.2% on Sunday to 95.7% on Thursday. With about 50 flights behind each day, a spread of 9 points is inside normal variation, so the day you fly is not worth changing for this flight.

Arrival by arrival

How late DL 1334 runs when it is late

DL 1334 often beats the schedule: 91 of 336 completed flights, 27%, arrived 15 minutes or more early. The 31 late arrivals split 15 under half an hour, 12 between 30 and 60 minutes, and 4 an hour or more.

15+ min early91 flights27.1%
Within 15 min214 flights63.7%
15–29 min late15 flights4.5%
30–59 min late12 flights3.6%
1–2 hours late2 flights0.6%
2+ hours late2 flights0.6%

Scale runs 0% to 100%.

Share of 336 completed flights by arrival against schedule.

A late pushback is often recovered here: of 28 departures that left 15 minutes late or more, 9 still arrived on time. 12 flights left on time and still arrived late.

The worst days

Worst days for DL 1334

The latest arrival of the period was on 7 December 2025, 3 hours 33 minutes behind schedule; most of its delay minutes were filed as extreme weather. On four of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).

The latest arrivals of DL 1334 in the period
Date	Arrived late by	Largest filed cause
7 December 2025	3 hours 33 minutes	Extreme weather
19 July 2026	2 hours 54 minutes	Carrier
8 July 2026	1 hour 12 minutes	Carrier
1 May 2026	1 hour 11 minutes	Carrier
2 May 2026	58 minutes	Carrier

Delay causes

Why DL 1334 runs late

Carrier accounts for 52% of the 1,368 delay minutes carriers reported here, and the remaining four split what is left.

Carrier
52%
National Airspace System
29%
Extreme weather
18%

Extreme weather accounts for 18% 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 3.0 times the usual weather exposure. The split is drawn from 1,368 delay minutes reported on DL 1334.

Cancellations run at 2.88%, against 1.89% nationally. That is roughly one flight in 30 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 1.2% land an hour or more behind schedule, against 8.3% 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.

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.

The same number turns up on one other city pair in the data, including FLL to ATL (155), but none flew often enough under DL 1334 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ATL to FLL only.

One caution: this is a thin sample. 347 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 1334

For a booking, the cancellation rate is the figure to plan around on DL 1334: 2.88% of its 347 scheduled flights did not operate. A late arrival costs about 45 minutes, but a cancellation costs the day, so leave a later option open.

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