Carrier route record
YXJFK→CHS
Republic Airways · New York to Charleston
- Flights
- 151
- Period
- September 2025 to August 2026
- Share of route
- 19%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Republic Airways.
Republic on JFK to CHS lands a B−, 3 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 151 flights, with a median arrival 12 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate Republic on JFK 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
80.3%
Arrivals under 15 minutes late, of 137 completed flights
Avg delay
64 min
Across delayed arrivals only, not all flights
Cancelled
9.27%
National rate is 1.89%
Whole route
74.3%
Every carrier on JFK to CHS, 791 flights
These figures cover 151 flights between September 2025 and August 2026. The median arrival is 12 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Carrier by carrier
Republic against every carrier on JFK to CHS
Republic flew 151 of the 791 flights on JFK to CHS, about 19% of it. Its 80.3% on time is 6 points better than the route as a whole, which runs 74.3%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Delta at 100.0% to JetBlue at 72.8%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
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 |
|---|---|---|---|---|---|
| Delta Air Linesthin sample | 2 | 100.0% | — | 0.00% | A+ |
| Republic Airways (this page)thin sample | 151 | 80.3% | 64 min | 9.27% | B− |
| JetBlue Airways | 638 | 72.8% | 70 min | 5.80% | 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 is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 151 flights.
- 5am–8am—
- 8am–11am76 flights76.8%
- 11am–2pm12 flights—
- 2pm–5pm1 flights—
- 5pm–8pm24 flights—
- 8pm–5am38 flights84.8%
Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.
The 8pm–5am window is the strongest at 84.8% on time. The full set of windows spans 8 points.
Across the year
Republic on JFK to CHS through the year
- Oct–Dec 202522 flights—
- Jan–Mar 2026129 flights79.1%
Scale runs 70% to 85%. Rows with fewer than 30 flights show a dash.
Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 80.3% on time across 151 flights.
Split by quarter, Republic on JFK to CHS logged 22 flights in Oct–Dec 2025 and 129 flights in Jan–Mar 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 80.3% annual figure is the one to use.
Arrival by arrival
How late Republic on JFK to CHS runs when it is late
Republic on JFK to CHS often beats the schedule: 65 of 137 completed flights, 47%, arrived 15 minutes or more early. The 27 late arrivals split 7 under half an hour, 12 between 30 and 60 minutes, and 8 an hour or more.
- 15+ min early65 flights47.4%
- Within 15 min45 flights32.8%
- 15–29 min late7 flights5.1%
- 30–59 min late12 flights8.8%
- 1–2 hours late5 flights3.6%
- 2+ hours late3 flights2.2%
Scale runs 0% to 100%.
Share of 137 completed flights by arrival against schedule.
7 of 31 late departures made up the time and arrived on time, 23% of them. 3 flights left on time and still arrived late.
The worst days
Worst days for Republic on JFK to CHS
The latest arrival of the period was on 19 January 2026, 4 hours 8 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 January 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 19 January 2026 | 4 hours 8 minutes | Carrier |
| 27 January 2026 | 3 hours 5 minutes | Carrier |
| 30 January 2026 | 2 hours 44 minutes | Carrier |
| 27 December 2025 | 1 hour 57 minutes | Late-arriving aircraft |
| 25 February 2026 | 1 hour 50 minutes | Extreme weather |
Delay causes
Why Republic runs late on this route
Carrier accounts for 47% of the 1,733 delay minutes carriers reported here, and the remaining four split what is left.
- 47%Carrier
- 35%Late-arriving aircraft
- 12%National Airspace System
- 7%Extreme weather
35% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 1,733 reported delay minutes here, that single category outweighs weather by 5 to one. The split is drawn from 1,733 reported delay minutes.
The largest share of delay minutes, 47%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 807 of the 1,733 delay minutes reported here.
Cancellations run at 9.27%, against 1.89% nationally. That is about one flight in ten 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
5.8% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
The 636 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 77.9% on time across 150 flights, within 2 points 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. 151 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 JFK to CHS
Put together: the delay figures matter less here than the 9.27% cancellation rate. A late arrival costs you about an hour; a cancelled flight costs you the day. Book the 8pm–5am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 137 completed flights over 12 months sit behind that.
Related
Where to go next
- JFK to CHS, every carrier
- Republic on CHS to JFK, the return leg
- JetBlue Airways on JFK to CHS72.8%
- Republic Airways network-wide record
- John F. Kennedy International (JFK) 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.