Flight number record

B6 1

JetBlue Airways · New York to Fort Lauderdale

Route: JFK → FLL
Departs: 06:00
Flights: 326
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s B6 1, check with JetBlue Airways.

B6 1 lands a B−, 5 points better than the national rate of 77.6%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about 45 minutes on average. That is a workable record, not a spotless one. That rests on 326 flights, with a median arrival 10 minutes early.

Set against the rest of the country, B6 1's record is 5 points better than the US average of 77.6%. That gap is worth roughly 54 fewer late arrivals for every thousand flights.

On time

83.0%

Arrivals under 15 minutes late, of 312 completed flights

Avg delay

44 min

Across delayed arrivals only, not all flights

Cancelled

3.68%

National rate is 1.81%

1 hour+ late

4.2%

National rate is 8.1%

These figures cover 326 flights between July 2025 and June 2026. The median arrival is 10 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.

Schedule

When B6 1 flies

B6 1 flies JFK to FLL without a single fixed slot. Its most common scheduled departure was 06:00, used on 122 of 326 flights, with 08:15 (56 flights) and 09:59 (44 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 06:00122 flights37.4%
Departs 08:1556 flights17.2%
Departs 09:5944 flights13.5%

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 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and B6 1 runs 6 points worse at 83.0%. 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 1 next to JFK to FLL

Every carrier on JFK to FLL combined arrived on time 72.7% of the time across 3,884 flights, so B6 1 is 10 points ahead of it. JetBlue flew 2,270 flights on the same city pair under all its flight numbers, including this one, and those ran 70.0% on time. Across its whole network JetBlue Airways managed 72.7%, which this flight beats by 10 points.

B6 1 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 1thin sample	326	83.0%	44 min	3.68%	B−
All JetBlue Airways on JFK–FLL	2,270	70.0%	69 min	3.96%	C−
All carriers on JFK–FLL	3,884	72.7%	69 min	3.76%	C−
JetBlue Airways, whole network	234,468	72.7%	76 min	2.56%	C

Across the year

B6 1 quarter by quarter

B6 1 did not run the same all year. Its best quarter was Apr–Jun 2026 at 87.8% on time and its weakest Jul–Sep 2025 at 76.7%, a swing of 11 points on roughly 82 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 202592 flights76.7%
Oct–Dec 202567 flights81.0%
Jan–Mar 202682 flights87.0%
Apr–Jun 202685 flights87.8%

Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, B6 1 did best on Monday at 92.9% on time and worst on Sunday at 78.7%. Each day rests on about 47 flights, so a gap of 14 points is worth noticing but could still narrow in another year.

Delay causes

Why B6 1 runs late

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 2,346 reported delay minutes.

Carrier
34%
National Airspace System
33%
Late-arriving aircraft
31%
Extreme weather
2%

The largest share of delay minutes, 34%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 804 of the 2,346 delay minutes reported here. The split is drawn from 2,346 delay minutes reported on B6 1.

Cancellations run at 3.68%, against 1.81% nationally. That is roughly one flight in 25 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 routes

What a delay on this flight costs

Badly late arrivals are rare here: only 4.2% land an hour or more behind schedule, against 8.1% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.

The 1,069 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

Every one of the 326 flights under B6 1 in the data flew JFK 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. 326 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 1

For a booking, the cancellation rate is the figure to plan around on B6 1: 3.68% of its 326 scheduled flights did not operate. A late arrival costs about 45 minutes, but a cancellation costs the day, so leave a later option open.

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