Flight number record

DL 2576

Delta Air Lines · Washington to Miami

Route: DCA → MIA
Departs: 14:55
Flights: 333
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2576, check with Delta Air Lines.

DL 2576 draws a C. About one flight in three arrives at least 15 minutes late, and the typical late arrival is an hour and a half behind schedule. Build slack into anything you connect to. That rests on 333 flights, with a median arrival right on schedule.

The national on-time rate over the same period is 77.6%, so DL 2576 runs 12 points behind the country as a whole. Across a thousand flights that is about 123 extra late arrivals.

On time

65.3%

Arrivals under 15 minutes late, of 323 completed flights

Avg delay

83 min

Across delayed arrivals only, not all flights

Cancelled

2.10%

National rate is 1.81%

1 hour+ late

14.2%

National rate is 8.1%

These figures cover 333 flights between July 2025 and June 2026. Beyond the headline rate, 14.2% 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 2576 flies

DL 2576 flies DCA to MIA without a single fixed slot. Its most common scheduled departure was 14:55, used on 74 of 333 flights, with 13:45 (36 flights) and 14:40 (34 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 14:5574 flights22.2%
Departs 13:4536 flights10.8%
Departs 14:4034 flights10.2%

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 14:55 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and DL 2576 runs 7 points worse at 65.3%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

DL 2576 next to DCA to MIA

Every carrier on DCA to MIA combined arrived on time 76.2% of the time across 3,959 flights, so DL 2576 is 11 points behind it. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 16 points.

DL 2576 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2576thin sample	333	65.3%	83 min	2.10%	C
All Delta Air Lines on DCA–MIAthin sample	364	67.2%	82 min	1.92%	C
All carriers on DCA–MIA	3,959	76.2%	84 min	2.22%	B
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 2576 quarter by quarter

DL 2576 did not run the same all year. Its best quarter was Jan–Mar 2026 at 75.0% on time and its weakest Jul–Sep 2025 at 55.2%, a swing of 20 points on roughly 83 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 flights55.2%
Oct–Dec 202591 flights67.0%
Jan–Mar 202690 flights75.0%
Apr–Jun 202660 flights63.2%

Scale runs 45% to 80%. Rows with fewer than 30 flights show a dash.

By weekday, DL 2576 did best on Monday at 80.4% on time and worst on Saturday at 52.2%. Each day rests on about 48 flights, so a gap of 28 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 2576 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 43% of the 9,268 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.

Late-arriving aircraft
43%
National Airspace System
29%
Carrier
24%
Extreme weather
4%

43% 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 9,268 reported delay minutes here, that single category outweighs weather by 10 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 9,268 delay minutes reported on DL 2576.

Cancellations sit at 2.10% against a national 1.81%, which is ordinary. Diversions add another 0.90%.

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. 14.2% 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 919 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 one other city pair in the data, including MIA to DCA (131), but none flew often enough under DL 2576 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DCA to MIA only.

One caution: this is a thin sample. 333 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 2576

For a booking, DL 2576 is a flight to put a long connection behind. 14.2% of its completed flights arrived an hour or more late, which a short layover will not absorb. If the onward flight is on a separate ticket, the risk sits with you.

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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures