Flight number record

DL 926

Delta Air Lines · Washington to Atlanta

Route: DCA → ATL
Departs: 10:10
Flights: 365
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s DL 926, check with Delta Air Lines.

DL 926 earns an A−. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 9 points better than the national rate of 77.3%. When something does go wrong the average delay runs roughly 55 minutes. That rests on 365 flights, with a median arrival 10 minutes early.

Set against the rest of the country, DL 926's record is 9 points better than the US average of 77.3%. That gap is worth roughly 92 fewer late arrivals for every thousand flights.

On time

86.5%

Arrivals under 15 minutes late, of 347 completed flights

Avg delay

53 min

Across delayed arrivals only, not all flights

Cancelled

4.66%

National rate is 1.89%

1 hour+ late

4.0%

National rate is 8.3%

These figures cover 365 flights between September 2025 and August 2026. The median arrival is 10 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.

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Schedule

When DL 926 flies

DL 926 flies DCA to ATL without a single fixed slot. Its most common scheduled departure was 10:10, used on 94 of 365 flights, with 10:15 (84 flights) and 10:20 (77 flights) next.

Departs 10:1094 flights25.8%
Departs 10:1584 flights23.0%
Departs 10:2077 flights21.1%

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 10:10 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and DL 926 runs 3 points better at 86.5%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

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Against the route

DL 926 next to DCA to ATL

Every carrier on DCA to ATL combined arrived on time 77.1% of the time across 6,799 flights, so DL 926 is 9 points ahead of it. Delta flew 3,850 flights on the same city pair under all its flight numbers, including this one, and those ran 79.2% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 5 points.

DL 926 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 926	365	86.5%	53 min	4.66%	A−
All Delta Air Lines on DCA–ATL	3,850	79.2%	88 min	2.55%	B
All carriers on DCA–ATL	6,799	77.1%	79 min	3.60%	B−
Delta Air Lines, whole network	1,039,517	81.1%	71 min	1.74%	B

Across the year

DL 926 quarter by quarter

Quarter by quarter DL 926 held fairly steady: 90.0% in Jul–Sep 2025, 84.3% in Oct–Dec 2025, 88.2% in Jan–Mar 2026, 88.4% in Apr–Jun 2026 and 82.5% in Jul–Sep 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202530 flights90.0%
Oct–Dec 202592 flights84.3%
Jan–Mar 202690 flights88.2%
Apr–Jun 202691 flights88.4%
Jul–Sep 202662 flights82.5%

Scale runs 75% to 95%.

By weekday, DL 926 did best on Saturday at 91.8% on time and worst on Monday at 79.2%. Each day rests on about 52 flights, so a gap of 13 points is worth noticing but could still narrow in another year.

Arrival by arrival

How late DL 926 runs when it is late

DL 926 often beats the schedule: 128 of 347 completed flights, 37%, arrived 15 minutes or more early. The 47 late arrivals split 21 under half an hour, 12 between 30 and 60 minutes, and 14 an hour or more.

15+ min early128 flights36.9%
Within 15 min172 flights49.6%
15–29 min late21 flights6.1%
30–59 min late12 flights3.5%
1–2 hours late10 flights2.9%
2+ hours late4 flights1.2%

Scale runs 0% to 100%.

Share of 347 completed flights by arrival against schedule.

A late pushback is often recovered here: of 49 departures that left 15 minutes late or more, 17 still arrived on time. 15 flights left on time and still arrived late.

The worst days

Worst days for DL 926

The latest arrival of the period was on 7 December 2025, 5 hours 22 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.

The latest arrivals of DL 926 in the period
Date	Arrived late by	Largest filed cause
7 December 2025	5 hours 22 minutes	Late-arriving aircraft
3 July 2026	2 hours 37 minutes	National Airspace System
27 February 2026	2 hours 28 minutes	Late-arriving aircraft
5 December 2025	2 hours 25 minutes	Late-arriving aircraft
18 January 2026	1 hour 45 minutes	Carrier

Delay causes

Why DL 926 runs late

Late-arriving aircraft accounts for 48% of the 2,509 delay minutes carriers reported here, and the remaining four split what is left.

Late-arriving aircraft
48%
National Airspace System
27%
Carrier
24%
Extreme weather
1%

48% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 2,509 reported delay minutes here, that single category outweighs weather by 48 to one. The split is drawn from 2,509 delay minutes reported on DL 926.

Cancellations run at 4.66%, against 1.89% nationally. That is about one flight in twenty 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 4.0% 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 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.

DL 926 is not only a DCA to ATL flight. It also flew ATL to DCA (362 flights, 84.1% 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. 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.

Other routes flown as DL 926
Also flown as	Flights	On time	Avg delay	Cancelled	Grade
ATL to DCAthin sample	362	84.1%	43 min	4.42%	B−

What to do with this

Booking DL 926

For a booking, the cancellation rate is the figure to plan around on DL 926: 4.66% of its 365 scheduled flights did not operate. A late arrival costs roughly 55 minutes, but a cancellation costs the day, so leave a later option open.

Where to go next

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 22 October 2026; recomputed monthly. How this data is collected.

Key figures