Flight number record
DL 1115
Delta Air Lines · Atlanta to Dallas
- Route
- ATL → DAL
- Departs
- 10:00
- Flights
- 324
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s DL 1115, check with Delta Air Lines.
DL 1115 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 77.6%. When something does go wrong the average delay runs about an hour. That rests on 324 flights, with a median arrival 12 minutes early.
Set against the rest of the country, DL 1115's record is 14 points better than the US average of 77.6%. That gap is worth roughly 139 fewer late arrivals for every thousand flights.
Key figures
On time
91.5%
Arrivals under 15 minutes late, of 318 completed flights
Avg delay
60 min
Across delayed arrivals only, not all flights
Cancelled
1.23%
National rate is 1.81%
1 hour+ late
2.8%
National rate is 8.1%
These figures cover 324 flights between July 2025 and June 2026. The median arrival is 12 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 1115 flies
DL 1115 flies ATL to DAL without a single fixed slot. Its most common scheduled departure was 10:00, used on 68 of 324 flights, with 10:05 (51 flights) and 09:45 (33 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 10:0068 flights21.0%
- Departs 10:0551 flights15.7%
- Departs 09:4533 flights10.2%
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 10:00 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and DL 1115 runs 7 points better at 91.5%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
Against the route
DL 1115 next to ATL to DAL
Every carrier on ATL to DAL combined arrived on time 81.3% of the time across 3,398 flights, so DL 1115 is 10 points ahead of it. Delta flew 1,850 flights on the same city pair under all its flight numbers, including this one, and those ran 84.4% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1115thin sample | 324 | 91.5% | 60 min | 1.23% | A |
| All Delta Air Lines on ATL–DAL | 1,850 | 84.4% | 62 min | 2.00% | B |
| All carriers on ATL–DAL | 3,398 | 81.3% | 60 min | 1.85% | B |
| Delta Air Lines, whole network | 1,038,570 | 81.6% | 71 min | 1.62% | B |
Across the year
DL 1115 quarter by quarter
DL 1115 did not run the same all year. Its best quarter was Jul–Sep 2025 at 95.6% on time and its weakest Oct–Dec 2025 at 83.1%, a swing of 13 points on roughly 81 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 202592 flights95.6%
- Oct–Dec 202584 flights83.1%
- Jan–Mar 202674 flights94.5%
- Apr–Jun 202674 flights93.1%
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, DL 1115 did best on Thursday at 100.0% on time and worst on Sunday at 86.4%. Each day rests on about 46 flights, so a gap of 14 points is worth noticing but could still narrow in another year.
Delay causes
Why DL 1115 runs late
One category carries most of the weight here. Carrier accounts for 75% of the 1,615 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.
- 75%Carrier
- 15%Late-arriving aircraft
- 10%National Airspace System
The largest share of delay minutes, 75%, 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 1,208 of the 1,615 delay minutes reported here. The split is drawn from 1,615 delay minutes reported on DL 1115.
Cancellations sit at 1.23% against a national 1.81%, which is ordinary. Diversions add another 0.62%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 2.8% 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.
The 721 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 1115 is not only a ATL to DAL flight. It also flew DAL to ATL (277 flights, 84.4% 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. 324 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 |
|---|---|---|---|---|---|
| DAL to ATLthin sample | 277 | 84.4% | 90 min | 0.72% | B+ |
What to do with this
Booking DL 1115
For a booking, DL 1115 has one of the better records a US domestic flight can show: 91.5% on time and 1.23% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- ATL to DAL, every carrier and departure
- DAL to ATL, the return direction
- Delta Air Lines 512 on the same route86.2%
- Delta Air Lines 1104 on the same route81.4%
- Delta Air Lines 2780 on the same route80.1%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Dallas Love Field (DAL) 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.