Carrier route record
YXLGA→CHS
Republic Airways · New York to Charleston
- Flights
- 1,038
- Period
- July 2025 to June 2026
- Share of route
- 72%
- Carriers
- 2
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Republic Airways.
Republic on LGA to CHS carries a cancellation problem, not just a delay problem: 5.6% of scheduled flights never operate, against 1.8% nationally. Of the ones that do fly, close to three flights in four arrive on time, worth a B− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 1,038 flights, with a median arrival 8 minutes early.
The US average over the same twelve months is 77.6%, so there is little to separate Republic on LGA to CHS from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
75.4%
Arrivals under 15 minutes late, of 977 completed flights
Avg delay
71 min
Across delayed arrivals only, not all flights
Cancelled
5.59%
National rate is 1.81%
Whole route
73.4%
Every carrier on LGA to CHS, 1,441 flights
These figures cover 1,038 flights between July 2025 and June 2026. Beyond the headline rate, 10.3% 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.
Carrier by carrier
Republic against every carrier on LGA to CHS
Republic flew 1,038 of the 1,441 flights on LGA to CHS, most of the route. Its 75.4% on time is 2 points better than the route as a whole, which runs 73.4%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from Republic at 75.4% to Delta at 68.2%.
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 (this page) | 1,038 | 75.4% | 71 min | 5.59% | B− |
| Delta Air Lines | 403 | 68.2% | 72 min | 3.47% | C− |
Departure window
When Republic runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 18 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am8 flights—
- 8am–11am309 flights83.3%
- 11am–2pm46 flights80.5%
- 2pm–5pm363 flights75.3%
- 5pm–8pm227 flights65.3%
- 8pm–5am85 flights69.9%
Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.
Book the morning departure. Flights leaving between 8am–11am arrive on time 83.3% of the time, against 65.3% for the evening window. That is 18 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 2pm–5pm window is the busiest, with 363 flights scheduled in it.
Across the year
Republic on LGA to CHS through the year
July is the worst month at 45.9% on time, 40 points below August, the best at 85.7%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. March was the busiest month here, with 131 flights.
Across the week, Tuesday is the strongest day at 80.0% on time and Thursday the weakest at 72.5%. 8 points is a smaller lever than departure hour, but it is free.
Delay causes
Why Republic runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 44% of the 17,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 44%Late-arriving aircraft
- 28%National Airspace System
- 23%Carrier
- 5%Extreme weather
- 0%Security
44% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 17,000 reported delay minutes here, that single category outweighs weather by 9 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 16,972 reported delay minutes.
The practical consequence: the 8am–11am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 83.3% on time here.
Cancellations run at 5.59%, against 1.81% nationally. That is roughly 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
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 10.3% 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 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. 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 return leg is a different operation and performs like one: it runs 78.7% on time across 1,037 flights, 3 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 3 points of difference.
One caution: this is a thin sample. 1,038 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 Republic on LGA to CHS
Put together: the delay figures matter less here than the 5.59% 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. 977 completed flights over 12 months sit behind that.
Related
Where to go next
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.