Flight number record
DL 1408
Delta Air Lines · Atlanta to San Antonio
- Route
- ATL → SAT
- Departs
- 12:33
- Flights
- 361
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s DL 1408, check with Delta Air Lines.
DL 1408 earns a B. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 361 flights, with a median arrival 8 minutes early.
Set against the rest of the country, DL 1408's record is 7 points better than the US average of 77.6%. That gap is worth roughly 68 fewer late arrivals for every thousand flights.
Key figures
On time
84.4%
Arrivals under 15 minutes late, of 353 completed flights
Avg delay
68 min
Across delayed arrivals only, not all flights
Cancelled
1.94%
National rate is 1.81%
1 hour+ late
5.9%
National rate is 8.1%
These figures cover 361 flights between July 2025 and June 2026. The median arrival is 8 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 1408 flies
DL 1408 flies ATL to SAT without a single fixed slot. Its most common scheduled departure was 12:33, used on 40 of 361 flights, with 11:07 (38 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 12:3340 flights11.1%
- Departs 11:0738 flights10.5%
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 12:33 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and DL 1408 runs 6 points better at 84.4%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
DL 1408 next to ATL to SAT
Every carrier on ATL to SAT combined arrived on time 81.2% of the time across 3,027 flights, so DL 1408 is 3 points ahead of it. Delta flew 2,610 flights on the same city pair under all its flight numbers, including this one, and those ran 81.5% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 3 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1408thin sample | 361 | 84.4% | 68 min | 1.94% | B |
| All Delta Air Lines on ATL–SAT | 2,610 | 81.5% | 53 min | 1.69% | B |
| All carriers on ATL–SAT | 3,027 | 81.2% | 55 min | 1.49% | B |
| Delta Air Lines, whole network | 1,038,570 | 81.6% | 71 min | 1.62% | B |
Across the year
DL 1408 quarter by quarter
Quarter by quarter DL 1408 held fairly steady: 80.4% in Jul–Sep 2025, 87.4% in Oct–Dec 2025, 84.9% in Jan–Mar 2026 and 85.2% in Apr–Jun 2026. A spread of 7 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202592 flights80.4%
- Oct–Dec 202588 flights87.4%
- Jan–Mar 202690 flights84.9%
- Apr–Jun 202691 flights85.2%
Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, DL 1408 did best on Tuesday at 90.2% on time and worst on Monday at 74.5%. Each day rests on about 52 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Delay causes
Why DL 1408 runs late
One category carries most of the weight here. Carrier accounts for 64% of the 3,748 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.
- 64%Carrier
- 22%National Airspace System
- 13%Late-arriving aircraft
- 1%Extreme weather
The largest share of delay minutes, 64%, 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 2,417 of the 3,748 delay minutes reported here. The split is drawn from 3,748 delay minutes reported on DL 1408.
Cancellations sit at 1.94% against a national 1.81%, which is ordinary. Diversions add another 0.28%.
Connections and routes
What a delay on this flight costs
5.9% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
The 874 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 1408 is not only a ATL to SAT flight. It also flew SAT to ATL (317 flights, 80.1% 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. 361 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 |
|---|---|---|---|---|---|
| SAT to ATLthin sample | 317 | 80.1% | 79 min | 2.21% | B |
What to do with this
Booking DL 1408
For a booking, read DL 1408 as 84.4% on time with 1.94% cancelled over 361 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- ATL to SAT, every carrier and departure
- SAT to ATL, the return direction
- Delta Air Lines 1465 on the same route77.5%
- Delta Air Lines 1508 on the same route79.3%
- Delta Air Lines 2893 on the same route73.9%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- San Antonio International (SAT) 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.