Flight number record
DL 2310
Delta Air Lines · New York to Fort Myers
- Route
- LGA → RSW
- Departs
- 15:35
- Flights
- 323
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s DL 2310, check with Delta Air Lines.
DL 2310 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 323 flights, with a median arrival 2 minutes late.
The national on-time rate over the same period is 77.6%, so DL 2310 runs 12 points behind the country as a whole. Across a thousand flights that is about 124 extra late arrivals.
Key figures
On time
65.2%
Arrivals under 15 minutes late, of 313 completed flights
Avg delay
88 min
Across delayed arrivals only, not all flights
Cancelled
2.79%
National rate is 1.81%
1 hour+ late
17.6%
National rate is 8.1%
These figures cover 323 flights between July 2025 and June 2026. Beyond the headline rate, 17.6% 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 2310 flies
DL 2310 flies LGA to RSW without a single fixed slot. Its most common scheduled departure was 15:35, used on 51 of 323 flights, with 15:10 (50 flights) and 15:20 (36 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 15:3551 flights15.8%
- Departs 15:1050 flights15.5%
- Departs 15:2036 flights11.1%
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 15:35 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and DL 2310 runs 7 points worse at 65.2%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
DL 2310 next to LGA to RSW
Every carrier on LGA to RSW combined arrived on time 74.8% of the time across 904 flights, so DL 2310 is 10 points behind it. Delta flew 704 flights on the same city pair under all its flight numbers, including this one, and those ran 76.2% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 16 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2310thin sample | 323 | 65.2% | 88 min | 2.79% | C |
| All Delta Air Lines on LGA–RSW | 704 | 76.2% | 80 min | 3.98% | B− |
| All carriers on LGA–RSW | 904 | 74.8% | 77 min | 4.09% | C− |
| Delta Air Lines, whole network | 1,038,570 | 81.6% | 71 min | 1.62% | B |
Across the year
DL 2310 quarter by quarter
DL 2310 did not run the same all year. Its best quarter was Jul–Sep 2025 at 75.0% on time and its weakest Oct–Dec 2025 at 45.6%, a swing of 29 points on roughly 81 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 202590 flights75.0%
- Oct–Dec 202570 flights45.6%
- Jan–Mar 202677 flights62.5%
- Apr–Jun 202686 flights72.9%
Scale runs 35% to 80%. Rows with fewer than 30 flights show a dash.
By weekday, DL 2310 did best on Friday at 77.6% on time and worst on Monday at 45.7%. Each day rests on about 46 flights, so a gap of 32 points is worth noticing but could still narrow in another year.
Delay causes
Why DL 2310 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 9,582 reported delay minutes.
- 39%Carrier
- 31%Late-arriving aircraft
- 29%National Airspace System
- 1%Extreme weather
The largest share of delay minutes, 39%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 3,758 of the 9,582 delay minutes reported here. The split is drawn from 9,582 delay minutes reported on DL 2310.
Cancellations run at 2.79%, 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. 17.6% 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 1,080 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.
DL 2310 is not only a LGA to RSW flight. It also flew RSW to LGA (323 flights, 63.2% 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. 323 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.
| Also flown as | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| RSW to LGAthin sample | 323 | 63.2% | 110 min | 3.41% | D− |
What to do with this
Booking DL 2310
For a booking, the cancellation rate is the figure to plan around on DL 2310: 2.79% of its 323 scheduled flights did not operate. A late arrival costs an hour and a half, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- LGA to RSW, every carrier and departure
- RSW to LGA, the return direction
- Delta Air Lines 379 on the same route85.8%
- LaGuardia (LGA) delay statistics
- Southwest Florida International (RSW) 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
- What a cancellation rate actually tells you (and what it hides)
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.