Flight number record
DL 374
Delta Air Lines · Atlanta to Dallas-Fort Worth
- Route
- ATL → DFW
- Departs
- 15:25
- Flights
- 316
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 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, 7 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 316 flights, with a median arrival 1 minute late.
The national on-time rate over the same period is 77.6%, so DL 374 runs 7 points behind the country as a whole. Across a thousand flights that is about 71 extra late arrivals.
Key figures
On time
70.5%
Arrivals under 15 minutes late, of 312 completed flights
Avg delay
65 min
Across delayed arrivals only, not all flights
Cancelled
0.95%
National rate is 1.81%
1 hour+ late
10.9%
National rate is 8.1%
These figures cover 316 flights between July 2025 and June 2026. Beyond the headline rate, 10.9% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
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 316 flights, with 15:26 (35 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 15:2546 flights14.6%
- Departs 15:2635 flights11.1%
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 15:25 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and DL 374 runs level with that at 70.5%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
DL 374 next to ATL to DFW
Every carrier on ATL to DFW combined arrived on time 74.3% of the time across 6,698 flights, so DL 374 is 4 points behind it. Delta flew 2,791 flights on the same city pair under all its flight numbers, including this one, and those ran 75.4% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 11 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 374thin sample | 316 | 70.5% | 65 min | 0.95% | C+ |
| All Delta Air Lines on ATL–DFW | 2,791 | 75.4% | 57 min | 2.51% | B |
| All carriers on ATL–DFW | 6,698 | 74.3% | 80 min | 2.76% | C |
| Delta Air Lines, whole network | 1,038,570 | 81.6% | 71 min | 1.62% | 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 2025 at 64.1%, a swing of 14 points on roughly 79 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 flights64.1%
- Oct–Dec 202592 flights74.2%
- Jan–Mar 202661 flights78.3%
- Apr–Jun 202671 flights67.6%
Scale runs 55% to 85%. Rows with fewer than 30 flights show a dash.
By weekday, DL 374 did best on Wednesday at 80.6% on time and worst on Monday at 63.5%. Each day rests on about 45 flights, so a gap of 17 points is worth noticing but could still narrow in another year.
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 5,980 reported delay minutes.
- 40%National Airspace System
- 36%Carrier
- 19%Late-arriving aircraft
- 5%Extreme weather
40% 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 2,415 minutes out of 5,980, against a national NAS share of 21%. The split is drawn from 5,980 delay minutes reported on DL 374.
Cancellations sit at 0.95% against a national 1.81%, which is ordinary. Diversions add another 0.32%.
Connections and routes
What a delay on this flight costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 10.9% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum 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. 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.
The same number turns up on two other city pairs in the data, including DFW to ATL (210) 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. 316 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 70.5% on time with 0.95% cancelled over 316 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 route86.3%
- Delta Air Lines 921 on the same route74.4%
- Delta Air Lines 961 on the same route87.6%
- Delta Air Lines 839 on the same route78.4%
- Delta Air Lines 818 on the same route78.9%
- Delta Air Lines 31 on the same route64.6%
- 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.