Flight number record
DL 2300
Delta Air Lines · New York to Miami
- Route
- LGA → MIA
- Departs
- 14:59
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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 77.3%, so DL 2300 runs 14 points behind the country as a whole. Across a thousand flights that is about 142 extra late arrivals.
Key figures
On time
63.1%
Arrivals under 15 minutes late, of 352 completed flights
Avg delay
67 min
Across delayed arrivals only, not all flights
Cancelled
3.01%
National rate is 1.89%
1 hour+ late
13.9%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. Beyond the headline rate, 13.9% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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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 105 of 365 flights, with 15:15 (41 flights) and 15:19 (38 flights) next.
- Departs 14:59105 flights28.8%
- Departs 15:1541 flights11.2%
- Departs 15:1938 flights10.4%
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 14:59 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and DL 2300 runs 9 points worse at 63.1%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Against the route
DL 2300 next to LGA to MIA
Every carrier on LGA to MIA combined arrived on time 69.9% of the time across 5,951 flights, so DL 2300 is 7 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 81.1%, which this flight trails by 18 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2300 | 365 | 63.1% | 67 min | 3.01% | D− |
| All Delta Air Lines on LGA–MIA | 1,916 | 70.2% | 70 min | 3.91% | C− |
| All carriers on LGA–MIA | 5,951 | 69.9% | 89 min | 4.28% | C− |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | 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 73 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 202530 flights60.0%
- Oct–Dec 202592 flights52.8%
- Jan–Mar 202690 flights70.2%
- Apr–Jun 202691 flights74.2%
- Jul–Sep 202662 flights53.3%
Scale runs 45% to 80%.
By weekday, DL 2300 did best on Wednesday at 78.0% on time and worst on Thursday at 49.0%. Each day rests on about 52 flights, so a gap of 29 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 2300 runs when it is late
DL 2300 often beats the schedule: 98 of 352 completed flights, 28%, arrived 15 minutes or more early. The 130 late arrivals split 36 under half an hour, 45 between 30 and 60 minutes, and 49 an hour or more.
- 15+ min early98 flights27.8%
- Within 15 min124 flights35.2%
- 15–29 min late36 flights10.2%
- 30–59 min late45 flights12.8%
- 1–2 hours late30 flights8.5%
- 2+ hours late19 flights5.4%
Scale runs 0% to 100%.
Share of 352 completed flights by arrival against schedule.
20 of 106 late departures made up the time and arrived on time, 19% of them. In the other direction, 44 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at MIA.
The worst days
Worst days for DL 2300
The latest arrival of the period was on 7 August 2026, 6 hours 44 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 7 August 2026 | 6 hours 44 minutes | Carrier |
| 2 August 2026 | 6 hours 1 minute | Carrier |
| 9 November 2025 | 4 hours 7 minutes | Carrier |
| 18 May 2026 | 3 hours 54 minutes | Carrier |
| 15 July 2026 | 3 hours 27 minutes | Carrier |
Delay causes
Why DL 2300 runs late
Carrier accounts for 45% of the 8,754 delay minutes carriers reported here, and the remaining four split what is left.
- 45%Carrier
- 33%National Airspace System
- 20%Late-arriving aircraft
- 1%Extreme weather
- 0%Security
33% 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 2,914 minutes out of 8,754, against a national NAS share of 21%. The split is drawn from 8,754 delay minutes reported on DL 2300.
Cancellations run at 3.01%, against 1.89% nationally. That is roughly one flight in 30 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
13.9% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection 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.
The same number turns up on one other city pair in the data, including MIA to LGA (196), 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: 3.01% 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.
Related
Where to go next
- LGA to MIA, every carrier and departure
- MIA to LGA, the return direction
- Delta Air Lines 2347 on the same route88.4%
- Delta Air Lines 2382 on the same route58.9%
- LaGuardia (LGA) delay statistics
- Miami International (MIA) 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.