Flight number record
DL 2520
Delta Air Lines · New York to Orlando
- Route
- LGA → MCO
- Departs
- 15:40
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2520, check with Delta Air Lines.
DL 2520 draws a D−. Roughly one flight in two 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 4 minutes late.
The national on-time rate over the same period is 77.3%, so DL 2520 runs 17 points behind the country as a whole. Across a thousand flights that is about 174 extra late arrivals.
Key figures
On time
59.9%
Arrivals under 15 minutes late, of 349 completed flights
Avg delay
61 min
Across delayed arrivals only, not all flights
Cancelled
3.29%
National rate is 1.89%
1 hour+ late
14.6%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. Beyond the headline rate, 14.6% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When DL 2520 flies
DL 2520 flies LGA to MCO without a single fixed slot. Its most common scheduled departure was 15:40, used on 81 of 365 flights, with 15:35 (67 flights) and 15:49 (52 flights) next.
- Departs 15:4081 flights22.2%
- Departs 15:3567 flights18.4%
- Departs 15:4952 flights14.2%
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 15:40 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and DL 2520 runs 12 points worse at 59.9%. 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 2520 next to LGA to MCO
Every carrier on LGA to MCO combined arrived on time 70.1% of the time across 5,149 flights, so DL 2520 is 10 points behind it. Delta flew 2,161 flights on the same city pair under all its flight numbers, including this one, and those ran 72.4% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight trails by 21 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2520 | 365 | 59.9% | 61 min | 3.29% | D− |
| All Delta Air Lines on LGA–MCO | 2,161 | 72.4% | 70 min | 4.58% | C− |
| All carriers on LGA–MCO | 5,149 | 70.1% | 81 min | 4.68% | C− |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 2520 quarter by quarter
DL 2520 did not run the same all year. Its best quarter was Jul–Sep 2025 at 80.0% on time and its weakest Oct–Dec 2025 at 47.7%, a swing of 32 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 flights80.0%
- Oct–Dec 202592 flights47.7%
- Jan–Mar 202690 flights63.1%
- Apr–Jun 202691 flights67.8%
- Jul–Sep 202662 flights50.9%
Scale runs 40% to 85%.
By weekday, DL 2520 did best on Saturday at 70.0% on time and worst on Monday at 49.0%. Each day rests on about 52 flights, so a gap of 21 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 2520 runs when it is late
The 140 late arrivals split 42 under half an hour, 47 between 30 and 60 minutes, and 51 an hour or more.
- 15+ min early77 flights22.1%
- Within 15 min132 flights37.8%
- 15–29 min late42 flights12.0%
- 30–59 min late47 flights13.5%
- 1–2 hours late35 flights10.0%
- 2+ hours late16 flights4.6%
Scale runs 0% to 100%.
Share of 349 completed flights by arrival against schedule.
28 of 127 late departures made up the time and arrived on time, 22% of them. In the other direction, 41 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 MCO.
The worst days
Worst days for DL 2520
The latest arrival of the period was on 2 May 2026, 5 hours 42 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 2 May 2026 | 5 hours 42 minutes | National Airspace System |
| 27 October 2025 | 3 hours 29 minutes | National Airspace System |
| 6 September 2025 | 3 hours 10 minutes | National Airspace System |
| 22 February 2026 | 2 hours 59 minutes | National Airspace System |
| 22 June 2026 | 2 hours 50 minutes | National Airspace System |
Delay causes
Why DL 2520 runs late
National Airspace System accounts for 47% of the 8,524 delay minutes carriers reported here, and the remaining four split what is left.
- 47%National Airspace System
- 26%Late-arriving aircraft
- 25%Carrier
- 1%Extreme weather
- 0%Security
47% 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 4,002 minutes out of 8,524, against a national NAS share of 21%. The split is drawn from 8,524 delay minutes reported on DL 2520.
Cancellations run at 3.29%, against 1.89% nationally. That is about 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
14.6% 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 950 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 MCO to LGA (107), but none flew often enough under DL 2520 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LGA to MCO 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 2520
For a booking, the cancellation rate is the figure to plan around on DL 2520: 3.29% 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 MCO, every carrier and departure
- MCO to LGA, the return direction
- JetBlue Airways 499 on the same route66.7%
- Delta Air Lines 2561 on the same route67.4%
- Delta Air Lines 2564 on the same route80.2%
- LaGuardia (LGA) delay statistics
- Orlando International (MCO) 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.