Carrier route record
YXLGA→CHS
Republic Airways · New York to Charleston
- Flights
- 1,106
- Period
- September 2025 to August 2026
- Share of route
- 74%
- Carriers
- 2
Historical statistics for September 2025 to August 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: 6.2% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, close to three flights in four arrive on time, worth a C− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 1,106 flights, with a median arrival 7 minutes early.
The US average over the same twelve months is 77.3%, 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
73.8%
Arrivals under 15 minutes late, of 1,034 completed flights
Avg delay
69 min
Across delayed arrivals only, not all flights
Cancelled
6.15%
National rate is 1.89%
Whole route
71.9%
Every carrier on LGA to CHS, 1,501 flights
These figures cover 1,106 flights between September 2025 and August 2026. Beyond the headline rate, 11.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
Republic against every carrier on LGA to CHS
Republic flew 1,106 of the 1,501 flights on LGA to CHS, most of the route. Its 73.8% on time is 2 points better than the route as a whole, which runs 71.9%. Ranked by on-time rate it is first 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 (this page) | 1,106 | 73.8% | 69 min | 6.15% | C− |
| Delta Air Lines | 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 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.
- 5am–8am2 flights—
- 8am–11am367 flights81.7%
- 11am–2pm41 flights78.4%
- 2pm–5pm405 flights72.3%
- 5pm–8pm219 flights65.0%
- 8pm–5am72 flights63.3%
Scale runs 55% to 85%. Rows with fewer than 30 flights show a dash.
The 8pm–5am window is where this operation falls apart: 63.3% on time, against 81.7% for the 8am–11am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 2pm–5pm window is the busiest, with 405 flights scheduled in it.
Across the year
Republic on LGA to CHS through the year
August is the worst month at 54.9% on time, 30 points below May, the best at 84.5%. 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 80.5% on time and Thursday the weakest at 69.4%, a spread of 11 points.
Arrival by arrival
How late Republic on LGA to CHS runs when it is late
Republic on LGA to CHS often beats the schedule: 391 of 1,034 completed flights, 38%, arrived 15 minutes or more early. The 271 late arrivals split 88 under half an hour, 69 between 30 and 60 minutes, and 114 an hour or more.
- 15+ min early391 flights37.8%
- Within 15 min372 flights36.0%
- 15–29 min late88 flights8.5%
- 30–59 min late69 flights6.7%
- 1–2 hours late74 flights7.2%
- 2+ hours late40 flights3.9%
Scale runs 0% to 100%.
Share of 1,034 completed flights by arrival against schedule.
40 of 231 late departures made up the time and arrived on time, 17% of them. In the other direction, 80 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 Republic on LGA to CHS
The latest arrival of the period was on 18 July 2026, 8 hours 48 minutes behind schedule; most of its delay minutes were filed as extreme weather. The five worst days are spread across July, June and December, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 18 July 2026 | 8 hours 48 minutes | Extreme weather |
| 22 June 2026 | 5 hours 58 minutes | Late-arriving aircraft |
| 14 December 2025 | 4 hours 51 minutes | Extreme weather |
| 9 July 2026 | 4 hours 44 minutes | Carrier |
| 1 December 2025 | 4 hours 38 minutes | Late-arriving aircraft |
Delay causes
Why Republic runs late on this route
Late-arriving aircraft accounts for 44% of the 19,000 delay minutes carriers reported here, and the remaining four split what is left.
- 44%Late-arriving aircraft
- 29%National Airspace System
- 18%Carrier
- 9%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. Across 19,000 reported delay minutes here, that single category outweighs weather by 5 to one. The split is drawn from 18,641 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 81.7% on time here.
Cancellations run at 6.15%, against 1.89% nationally. That is roughly one flight in fifteen 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
11.0% 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 is a different operation and performs like one: it runs 77.8% on time across 1,105 flights, 4 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 4 points of difference.
The sample behind these figures is 1,106 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
What to do with this
Booking Republic on LGA to CHS
Put together: the delay figures matter less here than the 6.15% 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. 1,034 completed flights over 12 months sit behind that.
Related
Where to go next
- LGA to CHS, every carrier
- Republic on CHS to LGA, the return leg
- Delta Air Lines on LGA to CHS66.6%
- Republic Airways network-wide record
- LaGuardia (LGA) delay statistics
- Charleston International (CHS) delay statistics
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
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.