Carrier route record
B6JFK→CHS
JetBlue Airways · New York to Charleston
- Flights
- 638
- Period
- September 2025 to August 2026
- Share of route
- 81%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with JetBlue Airways.
JetBlue on JFK to CHS sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 5 points worse than the national rate of 77.3%. The late ones land a little over an hour behind schedule. That rests on 638 flights, with a median arrival 4 minutes early.
The national on-time rate over the same period is 77.3%, so JetBlue on JFK to CHS runs 5 points behind the country as a whole. Across a thousand flights that is about 45 extra late arrivals.
Key figures
On time
72.8%
Arrivals under 15 minutes late, of 600 completed flights
Avg delay
70 min
Across delayed arrivals only, not all flights
Cancelled
5.80%
National rate is 1.89%
Whole route
74.3%
Every carrier on JFK to CHS, 791 flights
These figures cover 638 flights between September 2025 and August 2026. Beyond the headline rate, 11.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Carrier by carrier
JetBlue against every carrier on JFK to CHS
JetBlue flew 638 of the 791 flights on JFK to CHS, most of the route. Its 72.8% on time is 2 points worse than the route as a whole, which runs 74.3%. Ranked by on-time rate it is last of three carriers on the route, where the range runs from Delta at 100.0% to JetBlue at 72.8%. Two 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 Airwaysthin sample | 151 | 80.3% | 64 min | 9.27% | B− |
| JetBlue Airways (this page) | 638 | 72.8% | 70 min | 5.80% | C− |
Flight by flight
JetBlue flight numbers on JFK to CHS
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 JetBlue runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 21 points, against half a point between the best and worst carrier.
- 5am–8am85 flights82.5%
- 8am–11am222 flights73.5%
- 11am–2pm47 flights80.4%
- 2pm–5pm140 flights77.4%
- 5pm–8pm118 flights61.2%
- 8pm–5am26 flights—
Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 61.2% on time, against 82.5% for the 5am–8am 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 8am–11am window is the busiest, with 222 flights scheduled in it.
Across the year
JetBlue on JFK to CHS through the year
August is the worst month at 57.7% on time, 40 points below September, the best at 97.9%. 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. November was the busiest month here, with 67 flights.
Across the week, Wednesday is the strongest day at 83.1% on time and Sunday the weakest at 64.1%, a spread of 19 points.
Arrival by arrival
How late JetBlue on JFK to CHS runs when it is late
JetBlue on JFK to CHS often beats the schedule: 179 of 600 completed flights, 30%, arrived 15 minutes or more early. The 163 late arrivals split 47 under half an hour, 49 between 30 and 60 minutes, and 67 an hour or more.
- 15+ min early179 flights29.8%
- Within 15 min258 flights43.0%
- 15–29 min late47 flights7.8%
- 30–59 min late49 flights8.2%
- 1–2 hours late47 flights7.8%
- 2+ hours late20 flights3.3%
Scale runs 0% to 100%.
Share of 600 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 142 departures that left 15 minutes late or more, only 16 made it up before arrival. In the other direction, 37 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 JetBlue on JFK to CHS
The latest arrival of the period was on 10 June 2026, 5 hours 58 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 10 June 2026 | 5 hours 58 minutes | Carrier |
| 9 November 2025 | 5 hours 38 minutes | Carrier |
| 5 November 2025 | 4 hours 44 minutes | Carrier |
| 8 August 2026 | 4 hours 24 minutes | Late-arriving aircraft |
| 10 July 2026 | 4 hours 19 minutes | Carrier |
Delay causes
Why JetBlue 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 11,000 reported delay minutes.
- 40%Late-arriving aircraft
- 35%Carrier
- 24%National Airspace System
- 2%Extreme weather
40% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 11,000 reported delay minutes here, that single category outweighs weather by 22 to one. The split is drawn from 11,408 reported delay minutes.
The largest share of delay minutes, 35%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,954 of the 11,000 delay minutes reported here.
Cancellations run at 5.80%, 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
11.2% 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 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 72.5% on time across 637 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. 638 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 JetBlue on JFK to CHS
Put together: the delay figures matter less here than the 5.80% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 600 completed flights over 12 months sit behind that.
Related
Where to go next
- JFK to CHS, every carrier
- JetBlue on CHS to JFK, the return leg
- Republic Airways on JFK to CHS80.3%
- JetBlue 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.