Carrier route record
DLLGA→CHS
Delta Air Lines · New York to Charleston
- Flights
- 395
- Period
- September 2025 to August 2026
- Share of route
- 26%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Delta Air Lines.
Delta on LGA to CHS draws a C−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is a little over an hour behind schedule. Build slack into anything you connect to. That rests on 395 flights, with a median arrival 1 minute early.
The national on-time rate over the same period is 77.3%, so Delta on LGA to CHS runs 11 points behind the country as a whole. Across a thousand flights that is about 107 extra late arrivals.
Key figures
On time
66.6%
Arrivals under 15 minutes late, of 374 completed flights
Avg delay
74 min
Across delayed arrivals only, not all flights
Cancelled
4.81%
National rate is 1.89%
Whole route
71.9%
Every carrier on LGA to CHS, 1,501 flights
These figures cover 395 flights between September 2025 and August 2026. Beyond the headline rate, 13.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
Delta against every carrier on LGA to CHS
Delta flew 395 of the 1,501 flights on LGA to CHS, about 26% of it. Its 66.6% on time is 5 points worse than the route as a whole, which runs 71.9%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from Republic at 73.8% to Delta at 66.6%.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Republic Airways | 1,106 | 73.8% | 69 min | 6.15% | C− |
| Delta Air Lines (this page) | 395 | 66.6% | 74 min | 4.81% | C− |
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.
Departure window
When Delta runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 14 points, against half a point between the best and worst carrier.
- 5am–8am10 flights—
- 8am–11am40 flights74.3%
- 11am–2pm223 flights67.6%
- 2pm–5pm121 flights60.2%
- 5pm–8pm1 flights—
- 8pm–5am—
Scale runs 50% to 80%. Rows with fewer than 30 flights show a dash.
Book the morning departure. Flights leaving between 8am–11am arrive on time 74.3% of the time, against 60.2% for the afternoon window. That is 14 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 11am–2pm window is the busiest, with 223 flights scheduled in it.
Across the year
Delta on LGA to CHS through the year
December is the weak month at 47.1% on time, against 90.6% in June. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. October was the busiest month here, with 63 flights.
Across the week, Saturday is the strongest day at 77.4% on time and Monday the weakest at 57.7%, a spread of 20 points.
Arrival by arrival
How late Delta on LGA to CHS runs when it is late
The 125 late arrivals split 36 under half an hour, 39 between 30 and 60 minutes, and 50 an hour or more.
- 15+ min early87 flights23.3%
- Within 15 min162 flights43.3%
- 15–29 min late36 flights9.6%
- 30–59 min late39 flights10.4%
- 1–2 hours late32 flights8.6%
- 2+ hours late18 flights4.8%
Scale runs 0% to 100%.
Share of 374 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 94 departures that left 15 minutes late or more, only 11 made it up before arrival. In the other direction, 42 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 CHS.
The worst days
Worst days for Delta on LGA to CHS
The latest arrival of the period was on 6 August 2026, 7 hours 38 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across August, October, July and September, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 6 August 2026 | 7 hours 38 minutes | Carrier |
| 23 October 2025 | 6 hours 12 minutes | Extreme weather |
| 30 October 2025 | 6 hours 7 minutes | National Airspace System |
| 6 July 2026 | 5 hours 57 minutes | Late-arriving aircraft |
| 6 September 2025 | 5 hours 37 minutes | Late-arriving aircraft |
Delay causes
Why Delta runs late on this route
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 9,299 reported delay minutes.
- 39%Carrier
- 30%National Airspace System
- 27%Late-arriving aircraft
- 4%Extreme weather
The largest share of delay minutes, 39%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,656 of the 9,299 delay minutes reported here. The split is drawn from 9,299 reported delay minutes.
Cancellations run at 4.81%, against 1.89% nationally. That is about one flight in twenty 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 stage length
What a delay here costs
13.4% 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 641 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 return leg runs 65.9% on time across 395 flights, within half a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 395 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 Delta on LGA to CHS
Put together: the delay figures matter less here than the 4.81% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 8am–11am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 374 completed flights over 12 months sit behind that.
Related
Where to go next
- LGA to CHS, every carrier
- Delta on CHS to LGA, the return leg
- Republic Airways on LGA to CHS73.8%
- Delta Air Lines network-wide record
- LaGuardia (LGA) delay statistics
- Charleston International (CHS) delay statistics
- The US routes with the most cancellations
- The best time of day to fly, according to 7.05 million flight records
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.