Flight number record
B6 1131
JetBlue Airways · Charleston to Fort Lauderdale
- Route
- CHS → FLL
- Departs
- 09:40
- Flights
- 315
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s B6 1131, check with JetBlue Airways.
B6 1131 draws a D. About one flight in three arrives at least 15 minutes late, and the typical late arrival is a little over an hour behind schedule. Build slack into anything you connect to. That rests on 315 flights, with a median arrival 1 minute early.
The national on-time rate over the same period is 77.3%, so B6 1131 runs 14 points behind the country as a whole. Across a thousand flights that is about 135 extra late arrivals.
Key figures
On time
63.8%
Arrivals under 15 minutes late, of 309 completed flights
Avg delay
78 min
Across delayed arrivals only, not all flights
Cancelled
1.59%
National rate is 1.89%
1 hour+ late
17.8%
National rate is 8.3%
These figures cover 315 flights between September 2025 and August 2026. Beyond the headline rate, 17.8% 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.
Schedule
When B6 1131 flies
B6 1131 flies CHS to FLL without a single fixed slot. Its most common scheduled departure was 09:40, used on 41 of 315 flights.
- Departs 09:4041 flights13.0%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 09:40 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and B6 1131 runs 20 points worse at 63.8%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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.
Against the route
B6 1131 next to CHS to FLL
Every carrier on CHS to FLL combined arrived on time 66.7% of the time across 491 flights, so B6 1131 is 3 points behind it. Across its whole network JetBlue Airways managed 71.3%, which this flight trails by 8 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| B6 1131thin sample | 315 | 63.8% | 78 min | 1.59% | D |
| All JetBlue Airways on CHS–FLLthin sample | 344 | 65.3% | 76 min | 1.74% | C |
| All carriers on CHS–FLL | 491 | 66.7% | 70 min | 3.05% | C− |
| JetBlue Airways, whole network | 240,615 | 71.3% | 77 min | 3.56% | C− |
Across the year
B6 1131 quarter by quarter
B6 1131 did not run the same all year. Its best quarter was Oct–Dec 2025 at 76.7% on time and its weakest Jul–Sep 2026 at 38.3%, a swing of 38 points on roughly 79 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202518 flights—
- Oct–Dec 202592 flights76.7%
- Jan–Mar 202659 flights54.4%
- Apr–Jun 202684 flights67.9%
- Jul–Sep 202662 flights38.3%
Scale runs 30% to 80%. Rows with fewer than 30 flights show a dash.
By weekday, B6 1131 did best on Tuesday at 78.9% on time and worst on Sunday at 51.1%. Each day rests on about 45 flights, so a gap of 28 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late B6 1131 runs when it is late
The 112 late arrivals split 28 under half an hour, 29 between 30 and 60 minutes, and 55 an hour or more.
- 15+ min early69 flights22.3%
- Within 15 min128 flights41.4%
- 15–29 min late28 flights9.1%
- 30–59 min late29 flights9.4%
- 1–2 hours late37 flights12.0%
- 2+ hours late18 flights5.8%
Scale runs 0% to 100%.
Share of 309 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 97 departures that left 15 minutes late or more, only 6 made it up before arrival. In the other direction, 21 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 FLL.
The worst days
Worst days for B6 1131
The latest arrival of the period was on 12 April 2026, 6 hours 51 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). On four of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 12 April 2026 | 6 hours 51 minutes | Carrier |
| 28 October 2025 | 5 hours 31 minutes | Late-arriving aircraft |
| 22 August 2026 | 4 hours 27 minutes | Late-arriving aircraft |
| 3 August 2026 | 4 hours 10 minutes | Late-arriving aircraft |
| 27 June 2026 | 4 hours 3 minutes | Late-arriving aircraft |
Delay causes
Why B6 1131 runs late
Late-arriving aircraft accounts for 74% of the 8,713 delay minutes carriers reported here, and the remaining four split what is left.
- 74%Late-arriving aircraft
- 15%Carrier
- 9%National Airspace System
- 1%Extreme weather
74% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 8,713 reported delay minutes here, that single category outweighs weather by 53 to one. The split is drawn from 8,713 delay minutes reported on B6 1131.
Cancellations sit at 1.59% against a national 1.89%, which is ordinary. Diversions add another 0.32%.
Connections and routes
What a delay on this flight costs
17.8% 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.
Every one of the 315 flights under B6 1131 in the data flew CHS to FLL. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 315 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 B6 1131
For a booking, B6 1131 is a flight to put a long connection behind. 17.8% of its completed flights arrived an hour or more late, which a short layover will not absorb. If the onward flight is on a separate ticket, the risk sits with you.
Related
Where to go next
- Charleston International (CHS) delay statistics
- Fort Lauderdale-Hollywood International (FLL) delay statistics
- JetBlue Airways on-time record
- Every JetBlue Airways flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
A flight number here means JetBlue Airways’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
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.