Flight number record

DL 2300

Delta Air Lines · New York to Miami

Route: LGA → MIA
Departs: 14:59
Flights: 365
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2300, check with Delta Air Lines.

DL 2300 draws a D. Roughly one flight in three arrives at least 15 minutes late, and the typical late arrival is about an hour behind schedule. Build slack into anything you connect to. That rests on 365 flights, with a median arrival 3 minutes late.

The national on-time rate over the same period is 77.6%, so DL 2300 runs 15 points behind the country as a whole. Across a thousand flights that is about 151 extra late arrivals.

On time

62.5%

Arrivals under 15 minutes late, of 352 completed flights

Avg delay

62 min

Across delayed arrivals only, not all flights

Cancelled

2.74%

National rate is 1.81%

1 hour+ late

14.2%

National rate is 8.1%

These figures cover 365 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 2300 flies

DL 2300 flies LGA to MIA without a single fixed slot. Its most common scheduled departure was 14:59, used on 52 of 365 flights, with 15:15 (46 flights) and 15:10 (45 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 14:5952 flights14.2%
Departs 15:1546 flights12.6%
Departs 15:1045 flights12.3%

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 14:59 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and DL 2300 runs 10 points worse at 62.5%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

DL 2300 next to LGA to MIA

Every carrier on LGA to MIA combined arrived on time 70.6% of the time across 6,006 flights, so DL 2300 is 8 points behind it. Delta flew 1,916 flights on the same city pair under all its flight numbers, including this one, and those ran 70.2% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 19 points.

DL 2300 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 2300	365	62.5%	62 min	2.74%	D
All Delta Air Lines on LGA–MIA	1,916	70.2%	69 min	3.97%	C−
All carriers on LGA–MIA	6,006	70.6%	87 min	4.13%	C−
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 2300 quarter by quarter

DL 2300 did not run the same all year. Its best quarter was Apr–Jun 2026 at 74.2% on time and its weakest Oct–Dec 2025 at 52.8%, a swing of 21 points on roughly 91 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 flights53.3%
Oct–Dec 202592 flights52.8%
Jan–Mar 202690 flights70.2%
Apr–Jun 202691 flights74.2%

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

By weekday, DL 2300 did best on Wednesday at 76.0% on time and worst on Sunday at 54.9%. Each day rests on about 52 flights, so a gap of 21 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 2300 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 8,205 reported delay minutes.

Carrier
40%
National Airspace System
34%
Late-arriving aircraft
23%
Extreme weather
3%

34% 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 2,812 minutes out of 8,205, against a national NAS share of 21%. The split is drawn from 8,205 delay minutes reported on DL 2300.

Cancellations run at 2.74%, against 1.81% nationally. That is roughly one flight in 40 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

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 1,096 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 LGA (143), but none flew often enough under DL 2300 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LGA to MIA only.

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.

What to do with this

Booking DL 2300

For a booking, the cancellation rate is the figure to plan around on DL 2300: 2.74% of its 365 scheduled flights did not operate. A late arrival costs about an hour, 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures