Flight number record
DL 1004
Delta Air Lines · Albuquerque to Atlanta
- Route
- ABQ → ATL
- Departs
- 11:20
- Flights
- 345
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 1004, check with Delta Air Lines.
DL 1004 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 11 points better than the national rate of 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 345 flights, with a median arrival 12 minutes early.
Set against the rest of the country, DL 1004's record is 11 points better than the US average of 77.3%. That gap is worth roughly 111 fewer late arrivals for every thousand flights.
Key figures
On time
88.4%
Arrivals under 15 minutes late, of 337 completed flights
Avg delay
77 min
Across delayed arrivals only, not all flights
Cancelled
1.45%
National rate is 1.89%
1 hour+ late
2.4%
National rate is 8.3%
These figures cover 345 flights between September 2025 and August 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.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Schedule
When DL 1004 flies
DL 1004 flies ABQ to ATL without a single fixed slot. Its most common scheduled departure was 11:20, used on 65 of 345 flights, with 14:00 (44 flights) and 11:25 (42 flights) next.
- Departs 11:2065 flights18.8%
- Departs 14:0044 flights12.8%
- Departs 11:2542 flights12.2%
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 11:20 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and DL 1004 runs 10 points better at 88.4%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Against the route
DL 1004 next to ABQ to ATL
Every carrier on ABQ to ATL combined arrived on time 88.9% of the time across 1,002 flights, so DL 1004 is about level with it. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 7 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1004thin sample | 345 | 88.4% | 77 min | 1.45% | A |
| All Delta Air Lines on ABQ–ATL | 1,002 | 88.9% | 105 min | 1.60% | A |
| All carriers on ABQ–ATL | 1,002 | 88.9% | 105 min | 1.60% | A |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 1004 quarter by quarter
DL 1004 did not run the same all year. Its best quarter was Apr–Jun 2026 at 93.3% on time and its weakest Jul–Sep 2026 at 81.4%, a swing of 12 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 202521 flights—
- Oct–Dec 202582 flights87.8%
- Jan–Mar 202690 flights88.4%
- Apr–Jun 202690 flights93.3%
- Jul–Sep 202662 flights81.4%
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, DL 1004 ranged from 83.0% on Tuesday to 93.9% on Friday. With about 49 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late DL 1004 runs when it is late
DL 1004 often beats the schedule: 143 of 337 completed flights, 42%, arrived 15 minutes or more early. The 39 late arrivals split 16 under half an hour, 15 between 30 and 60 minutes, and 8 an hour or more.
- 15+ min early143 flights42.4%
- Within 15 min155 flights46.0%
- 15–29 min late16 flights4.7%
- 30–59 min late15 flights4.5%
- 1–2 hours late5 flights1.5%
- 2+ hours late3 flights0.9%
Scale runs 0% to 100%.
Share of 337 completed flights by arrival against schedule.
11 of 40 late departures made up the time and arrived on time, 28% of them. 10 flights left on time and still arrived late.
The worst days
Worst days for DL 1004
The latest arrival of the period was on 25 December 2025, 18 hours 33 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across December, November, March, February and January, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 25 December 2025 | 18 hours 33 minutes | Carrier |
| 8 November 2025 | 6 hours 23 minutes | National Airspace System |
| 16 March 2026 | 2 hours 13 minutes | Late-arriving aircraft |
| 18 February 2026 | 1 hour 54 minutes | Carrier |
| 7 January 2026 | 1 hour 49 minutes | Late-arriving aircraft |
Delay causes
Why DL 1004 runs late
Carrier accounts for 48% of the 3,004 delay minutes carriers reported here, and the remaining four split what is left.
- 48%Carrier
- 29%Late-arriving aircraft
- 23%National Airspace System
- 1%Extreme weather
The largest share of delay minutes, 48%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,442 of the 3,004 delay minutes reported here. The split is drawn from 3,004 delay minutes reported on DL 1004.
Cancellations sit at 1.45% against a national 1.89%, which is ordinary. Diversions add another 0.87%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 2.4% 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 1,269 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.
DL 1004 is not only a ABQ to ATL flight. It also flew ATL to ABQ (337 flights, 91.3% 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. 345 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 |
|---|---|---|---|---|---|
| ATL to ABQthin sample | 337 | 91.3% | 48 min | 1.19% | A |
What to do with this
Booking DL 1004
For a booking, DL 1004 has one of the better records a US domestic flight can show: 88.4% on time and 1.45% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- ABQ to ATL, every carrier and departure
- ATL to ABQ, the return direction
- Delta Air Lines 1688 on the same route91.9%
- Delta Air Lines 1109 on the same route86.0%
- Albuquerque International Sunport (ABQ) 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.