Flight number record

B6 1131

JetBlue Airways · Charleston to Fort Lauderdale

Route: CHS → FLL
Departs: 09:30
Flights: 315
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s B6 1131, check with JetBlue Airways.

B6 1131 sits in the middle of the pack with a C+. Close to three flights in four arrive on time by the DOT's definition, 4 points worse than the national rate of 77.6%. The late ones land a little over an hour behind schedule. That rests on 315 flights, with a median arrival 6 minutes early.

The national on-time rate over the same period is 77.6%, so B6 1131 runs 4 points behind the country as a whole. Across a thousand flights that is about 40 extra late arrivals.

On time

73.6%

Arrivals under 15 minutes late, of 311 completed flights

Avg delay

72 min

Across delayed arrivals only, not all flights

Cancelled

0.95%

National rate is 1.81%

1 hour+ late

10.9%

National rate is 8.1%

These figures cover 315 flights between July 2025 and June 2026. Beyond the headline rate, 10.9% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Schedule

When B6 1131 flies

B6 1131 flies CHS to FLL without a single fixed slot. Its most common scheduled departure was 09:30, used on 64 of 315 flights, with 09:40 (41 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 09:3064 flights20.3%
Departs 09:4041 flights13.0%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 09:30 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and B6 1131 runs 11 points worse at 73.6%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

B6 1131 next to CHS to FLL

Every carrier on CHS to FLL combined arrived on time 73.5% of the time across 520 flights, so B6 1131 is about level with it. Across its whole network JetBlue Airways managed 72.7%, close to this flight's figure.

B6 1131 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 1131thin sample	315	73.6%	72 min	0.95%	C+
All JetBlue Airways on CHS–FLLthin sample	344	74.3%	70 min	1.16%	C
All carriers on CHS–FLL	520	73.5%	65 min	2.50%	C
JetBlue Airways, whole network	234,468	72.7%	76 min	2.56%	C

Across the year

B6 1131 quarter by quarter

B6 1131 did not run the same all year. Its best quarter was Jul–Sep 2025 at 90.0% on time and its weakest Jan–Mar 2026 at 54.4%, a swing of 36 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 202580 flights90.0%
Oct–Dec 202592 flights76.7%
Jan–Mar 202659 flights54.4%
Apr–Jun 202684 flights67.9%

Scale runs 45% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, B6 1131 did best on Tuesday at 92.3% on time and worst on Sunday at 61.7%. Each day rests on about 45 flights, so a gap of 31 points is worth noticing but could still narrow in another year.

Delay causes

Why B6 1131 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 70% of the 5,879 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Late-arriving aircraft
70%
Carrier
19%
National Airspace System
11%

70% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 5,879 reported delay minutes here, that single category outweighs weather by 70 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 5,879 delay minutes reported on B6 1131.

Cancellations sit at 0.95% against a national 1.81%, which is ordinary. Diversions add another 0.32%.

Connections and routes

What a delay on this flight costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 10.9% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum 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, read B6 1131 as 73.6% on time with 0.95% cancelled over 315 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures