Flight number record
DL 374
Delta Air Lines · Atlanta to Dallas-Fort Worth
- Route
- ATL → DFW
- Departs
- 15:25
- Flights
- 296
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 374, check with Delta Air Lines.
DL 374 sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 8 points worse than the national rate of 77.3%. The late ones land a little over an hour behind schedule. That rests on 296 flights, with a median arrival 1 minute late.
The national on-time rate over the same period is 77.3%, so DL 374 runs 8 points behind the country as a whole. Across a thousand flights that is about 82 extra late arrivals.
Key figures
On time
69.1%
Arrivals under 15 minutes late, of 291 completed flights
Avg delay
70 min
Across delayed arrivals only, not all flights
Cancelled
1.35%
National rate is 1.89%
1 hour+ late
11.3%
National rate is 8.3%
These figures cover 296 flights between September 2025 and August 2026. Beyond the headline rate, 11.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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 374 flies
DL 374 flies ATL to DFW without a single fixed slot. Its most common scheduled departure was 15:25, used on 46 of 296 flights, with 16:10 (30 flights) next.
- Departs 15:2546 flights15.5%
- Departs 16:1030 flights10.1%
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 15:25 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and DL 374 runs 3 points worse at 69.1%. 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 374 next to ATL to DFW
Every carrier on ATL to DFW combined arrived on time 73.9% of the time across 6,672 flights, so DL 374 is 5 points behind it. Delta flew 2,784 flights on the same city pair under all its flight numbers, including this one, and those ran 76.0% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight trails by 12 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 374thin sample | 296 | 69.1% | 70 min | 1.35% | C |
| All Delta Air Lines on ATL–DFW | 2,784 | 76.0% | 60 min | 2.55% | B |
| All carriers on ATL–DFW | 6,672 | 73.9% | 82 min | 2.50% | C |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 374 quarter by quarter
DL 374 did not run the same all year. Its best quarter was Jan–Mar 2026 at 78.3% on time and its weakest Jul–Sep 2026 at 46.3%, a swing of 32 points on roughly 59 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 202530 flights70.0%
- Oct–Dec 202592 flights74.2%
- Jan–Mar 202661 flights78.3%
- Apr–Jun 202671 flights67.6%
- Jul–Sep 202642 flights46.3%
Scale runs 40% to 85%.
By weekday, DL 374 did best on Thursday at 76.9% on time and worst on Sunday at 57.4%. Each day rests on about 42 flights, so a gap of 20 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 374 runs when it is late
The 90 late arrivals split 30 under half an hour, 27 between 30 and 60 minutes, and 33 an hour or more.
- 15+ min early47 flights16.2%
- Within 15 min154 flights52.9%
- 15–29 min late30 flights10.3%
- 30–59 min late27 flights9.3%
- 1–2 hours late18 flights6.2%
- 2+ hours late15 flights5.2%
Scale runs 0% to 100%.
Share of 291 completed flights by arrival against schedule.
18 of 90 late departures made up the time and arrived on time, 20% of them. In the other direction, 18 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at DFW.
The worst days
Worst days for DL 374
The latest arrival of the period was on 10 May 2026, 8 hours 45 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 10 May 2026 | 8 hours 45 minutes | National Airspace System |
| 11 July 2026 | 5 hours 46 minutes | Carrier |
| 19 May 2026 | 4 hours 30 minutes | National Airspace System |
| 12 July 2026 | 4 hours 19 minutes | Late-arriving aircraft |
| 26 January 2026 | 4 hours 5 minutes | National Airspace System |
Delay causes
Why DL 374 runs late
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 6,266 reported delay minutes.
- 38%National Airspace System
- 34%Carrier
- 24%Late-arriving aircraft
- 4%Extreme weather
38% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 2,395 minutes out of 6,266, against a national NAS share of 21%. The split is drawn from 6,266 delay minutes reported on DL 374.
Cancellations sit at 1.35% against a national 1.89%, which is ordinary. Diversions add another 0.34%.
Connections and routes
What a delay on this flight costs
11.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 731 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 two other city pairs in the data, including DFW to ATL (226) and LAX to SJC (1), but none flew often enough under DL 374 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ATL to DFW only.
One caution: this is a thin sample. 296 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 374
For a booking, read DL 374 as 69.1% on time with 1.35% cancelled over 296 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- ATL to DFW, every carrier and departure
- DFW to ATL, the return direction
- American Airlines 1567 on the same route86.4%
- Delta Air Lines 818 on the same route79.7%
- Delta Air Lines 921 on the same route76.1%
- Delta Air Lines 961 on the same route87.8%
- Delta Air Lines 839 on the same route79.8%
- Delta Air Lines 414 on the same route81.5%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Dallas/Fort Worth International (DFW) 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
- How often a connection fails at the major US hubs
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.