Flight number record
DL 1215
Delta Air Lines · Fort Lauderdale to Atlanta
- Route
- FLL → ATL
- Departs
- 06:30
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 1215, check with Delta Air Lines.
DL 1215 earns an A+. Nearly every flight arrives inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 17 points better than the national rate of 77.3%. When something does go wrong the average delay runs an hour and a half. That rests on 365 flights, with a median arrival 13 minutes early.
Set against the rest of the country, DL 1215's record is 17 points better than the US average of 77.3%. That gap is worth roughly 166 fewer late arrivals for every thousand flights.
Key figures
On time
93.9%
Arrivals under 15 minutes late, of 362 completed flights
Avg delay
93 min
Across delayed arrivals only, not all flights
Cancelled
0.55%
National rate is 1.89%
1 hour+ late
1.9%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. The median arrival is 13 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 1215 flies
DL 1215 flies FLL to ATL without a single fixed slot. Its most common scheduled departure was 06:30, used on 101 of 365 flights, with 06:25 (67 flights) and 07:30 (41 flights) next.
- Departs 06:30101 flights27.7%
- Departs 06:2567 flights18.4%
- Departs 07:3041 flights11.2%
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 06:30 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 1215 runs 5 points better at 93.9%. 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 1215 next to FLL to ATL
Every carrier on FLL to ATL combined arrived on time 71.0% of the time across 7,366 flights, so DL 1215 is 23 points ahead of it. Delta flew 4,379 flights on the same city pair under all its flight numbers, including this one, and those ran 78.5% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 13 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1215 | 365 | 93.9% | 93 min | 0.55% | A+ |
| All Delta Air Lines on FLL–ATL | 4,379 | 78.5% | 73 min | 1.92% | B |
| All carriers on FLL–ATL | 7,366 | 71.0% | 74 min | 2.59% | C |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 1215 quarter by quarter
Quarter by quarter DL 1215 held fairly steady: 90.0% in Jul–Sep 2025, 92.4% in Oct–Dec 2025, 93.2% in Jan–Mar 2026, 94.5% in Apr–Jun 2026 and 98.4% in Jul–Sep 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202530 flights90.0%
- Oct–Dec 202592 flights92.4%
- Jan–Mar 202690 flights93.2%
- Apr–Jun 202691 flights94.5%
- Jul–Sep 202662 flights98.4%
Scale runs 80% to 100%.
By weekday, DL 1215 ranged from 90.4% on Sunday to 96.2% on Thursday. With about 52 flights behind each day, a spread of 6 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late DL 1215 runs when it is late
DL 1215 often beats the schedule: 163 of 362 completed flights, 45%, arrived 15 minutes or more early. The 22 late arrivals split 9 under half an hour, 6 between 30 and 60 minutes, and 7 an hour or more.
- 15+ min early163 flights45.0%
- Within 15 min177 flights48.9%
- 15–29 min late9 flights2.5%
- 30–59 min late6 flights1.7%
- 1–2 hours late0 flights0.0%
- 2+ hours late7 flights1.9%
Scale runs 0% to 100%.
Share of 362 completed flights by arrival against schedule.
Only 18 of 362 completed flights left 15 minutes late or more, too few to say how often the time is made up.
The worst days
Worst days for DL 1215
The latest arrival of the period was on 12 July 2026, 7 hours 27 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 12 July 2026 | 7 hours 27 minutes | Late-arriving aircraft |
| 16 March 2026 | 5 hours 12 minutes | National Airspace System |
| 1 January 2026 | 4 hours 3 minutes | Carrier |
| 3 November 2025 | 2 hours 55 minutes | Carrier |
| 8 October 2025 | 2 hours 32 minutes | Carrier |
Delay causes
Why DL 1215 runs late
Carrier accounts for 54% of the 2,048 delay minutes carriers reported here, and the remaining four split what is left.
- 54%Carrier
- 27%National Airspace System
- 19%Late-arriving aircraft
The largest share of delay minutes, 54%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,108 of the 2,048 delay minutes reported here. The split is drawn from 2,048 delay minutes reported on DL 1215.
Cancellations are rare at 0.55%, below the national 1.89% 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
Badly late arrivals are rare here: only 1.9% 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.
Every one of the 365 flights under DL 1215 in the data flew FLL 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. 365 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 1215
For a booking, DL 1215 has one of the better records a US domestic flight can show: 93.9% on time and 0.55% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- FLL to ATL, every carrier and departure
- ATL to FLL, the return direction
- Delta Air Lines 1326 on the same route88.7%
- Delta Air Lines 2345 on the same route65.9%
- Delta Air Lines 1168 on the same route96.7%
- Delta Air Lines 1271 on the same route76.2%
- Delta Air Lines 1094 on the same route80.9%
- Delta Air Lines 1512 on the same route78.3%
- Fort Lauderdale-Hollywood International (FLL) delay statistics
- 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.