Flight number record
DL 926
Delta Air Lines · Washington to Atlanta
- Route
- DCA → ATL
- Departs
- 10:15
- Flights
- 365
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s DL 926, check with Delta Air Lines.
DL 926 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 10 points better than the national rate of 77.6%. When something does go wrong the average delay runs roughly 50 minutes. That rests on 365 flights, with a median arrival 9 minutes early.
Set against the rest of the country, DL 926's record is 10 points better than the US average of 77.6%. That gap is worth roughly 96 fewer late arrivals for every thousand flights.
Key figures
On time
87.2%
Arrivals under 15 minutes late, of 351 completed flights
Avg delay
52 min
Across delayed arrivals only, not all flights
Cancelled
3.84%
National rate is 1.81%
1 hour+ late
3.1%
National rate is 8.1%
These figures cover 365 flights between July 2025 and June 2026. The median arrival is 9 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 926 flies
DL 926 flies DCA to ATL without a single fixed slot. Its most common scheduled departure was 10:15, used on 81 of 365 flights, with 10:20 (76 flights) and 10:19 (68 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 10:1581 flights22.2%
- Departs 10:2076 flights20.8%
- Departs 10:1968 flights18.6%
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 10:15 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and DL 926 runs 3 points better at 87.2%. 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 926 next to DCA to ATL
Every carrier on DCA to ATL combined arrived on time 78.8% of the time across 6,813 flights, so DL 926 is 8 points ahead of it. Delta flew 3,838 flights on the same city pair under all its flight numbers, including this one, and those ran 80.9% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 926 | 365 | 87.2% | 52 min | 3.84% | A− |
| All Delta Air Lines on DCA–ATL | 3,838 | 80.9% | 88 min | 2.81% | B |
| All carriers on DCA–ATL | 6,813 | 78.8% | 80 min | 3.54% | B− |
| Delta Air Lines, whole network | 1,038,570 | 81.6% | 71 min | 1.62% | B |
Across the year
DL 926 quarter by quarter
Quarter by quarter DL 926 held fairly steady: 87.9% in Jul–Sep 2025, 84.3% in Oct–Dec 2025, 88.2% in Jan–Mar 2026 and 88.4% in Apr–Jun 2026. A spread of 4 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202592 flights87.9%
- Oct–Dec 202592 flights84.3%
- Jan–Mar 202690 flights88.2%
- Apr–Jun 202691 flights88.4%
Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, DL 926 ranged from 81.2% on Monday to 92.0% on Saturday. With about 52 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.
Delay causes
Why DL 926 runs late
One category carries most of the weight here. Late-arriving aircraft accounts for 48% of the 2,349 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.
- 48%Late-arriving aircraft
- 33%Carrier
- 18%National Airspace System
- 1%Extreme weather
48% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 2,349 reported delay minutes here, that single category outweighs weather by 46 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 2,349 delay minutes reported on DL 926.
Cancellations run at 3.84%, against 1.81% nationally. That is about one flight in 25 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 3.1% 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 547 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 926 is not only a DCA to ATL flight. It also flew ATL to DCA (362 flights, 83.3% 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. 365 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 DCAthin sample | 362 | 83.3% | 42 min | 4.14% | B− |
What to do with this
Booking DL 926
For a booking, the cancellation rate is the figure to plan around on DL 926: 3.84% of its 365 scheduled flights did not operate. A late arrival costs roughly 50 minutes, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- DCA to ATL, every carrier and departure
- ATL to DCA, the return direction
- Delta Air Lines 410 on the same route94.9%
- Delta Air Lines 380 on the same route80.8%
- Delta Air Lines 850 on the same route68.2%
- Delta Air Lines 455 on the same route85.4%
- Delta Air Lines 360 on the same route72.9%
- Delta Air Lines 330 on the same route91.1%
- Ronald Reagan Washington National (DCA) 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
- Why the first flight of the morning is statistically safest
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.