Carrier route record
YXCHS→LGA
Republic Airways · Charleston to New York
- Flights
- 1,105
- 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 CHS to LGA carries a cancellation problem, not just a delay problem: 6.9% 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 B− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 1,105 flights, with a median arrival 9 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate Republic on CHS to LGA from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
77.8%
Arrivals under 15 minutes late, of 1,023 completed flights
Avg delay
90 min
Across delayed arrivals only, not all flights
Cancelled
6.88%
National rate is 1.89%
Whole route
74.6%
Every carrier on CHS to LGA, 1,500 flights
These figures cover 1,105 flights between September 2025 and August 2026. Beyond the headline rate, 10.5% 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 CHS to LGA
Republic flew 1,105 of the 1,500 flights on CHS to LGA, most of the route. Its 77.8% on time is 3 points better than the route as a whole, which runs 74.6%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from Republic at 77.8% to Delta at 65.9%.
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) | 1,105 | 77.8% | 90 min | 6.88% | B− |
| Delta Air Lines | 395 | 65.9% | 171 min | 5.57% | 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 27 points, against half a point between the best and worst carrier.
- 5am–8am289 flights88.5%
- 8am–11am38 flights91.7%
- 11am–2pm381 flights77.4%
- 2pm–5pm41 flights64.9%
- 5pm–8pm355 flights68.7%
- 8pm–5am1 flights—
Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.
Book the morning departure. Flights leaving between 8am–11am arrive on time 91.7% of the time, against 64.9% for the afternoon window. That is 27 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 381 flights scheduled in it.
Across the year
Republic on CHS to LGA through the year
August is the worst month at 65.2% on time, 25 points below October, the best at 89.8%. 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, Saturday is the strongest day at 87.5% on time and Sunday the weakest at 70.1%, a spread of 17 points.
Arrival by arrival
How late Republic on CHS to LGA runs when it is late
Republic on CHS to LGA often beats the schedule: 348 of 1,023 completed flights, 34%, arrived 15 minutes or more early. The 227 late arrivals split 53 under half an hour, 67 between 30 and 60 minutes, and 107 an hour or more.
- 15+ min early348 flights34.0%
- Within 15 min448 flights43.8%
- 15–29 min late53 flights5.2%
- 30–59 min late67 flights6.5%
- 1–2 hours late62 flights6.1%
- 2+ hours late45 flights4.4%
Scale runs 0% to 100%.
Share of 1,023 completed flights by arrival against schedule.
26 of 216 late departures made up the time and arrived on time, 12% of them. 37 flights left on time and still arrived late.
The worst days
Worst days for Republic on CHS to LGA
The latest arrival of the period was on 5 August 2026, 15 hours 22 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in August 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 5 August 2026 | 15 hours 22 minutes | Carrier |
| 20 August 2026 | 13 hours 23 minutes | National Airspace System |
| 22 May 2026 | 10 hours 10 minutes | Late-arriving aircraft |
| 11 August 2026 | 7 hours 37 minutes | Late-arriving aircraft |
| 14 December 2025 | 6 hours 45 minutes | Late-arriving aircraft |
Delay causes
Why Republic 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 20,000 reported delay minutes.
- 40%Late-arriving aircraft
- 36%National Airspace System
- 23%Carrier
- 1%Extreme weather
- 0%Security
40% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 20,000 reported delay minutes here, that single category outweighs weather by 33 to one. The split is drawn from 20,489 reported delay minutes.
36% 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 7,278 minutes out of 20,000, against a national NAS share of 21%.
Cancellations run at 6.88%, against 1.89% nationally. That is about 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
10.5% 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 73.8% on time across 1,106 flights, 4 points below 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 1,105 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 CHS to LGA
Put together: the delay figures matter less here than the 6.88% cancellation rate. A late arrival costs you an hour and a half; 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. 1,023 completed flights over 12 months sit behind that.
Related
Where to go next
- CHS to LGA, every carrier
- Republic on LGA to CHS, the return leg
- Delta Air Lines on CHS to LGA65.9%
- Republic Airways network-wide record
- Charleston International (CHS) delay statistics
- LaGuardia (LGA) 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.