Flight number record

B6 608

JetBlue Airways · Las Vegas to Fort Lauderdale

Route: LAS → FLL
Departs: 23:59
Flights: 325
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s B6 608, check with JetBlue Airways.

B6 608 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 77.6%. The late ones land about an hour behind schedule. That rests on 325 flights, with a median arrival 2 minutes early.

The national on-time rate over the same period is 77.6%, so B6 608 runs 5 points behind the country as a whole. Across a thousand flights that is about 54 extra late arrivals.

On time

72.2%

Arrivals under 15 minutes late, of 320 completed flights

Avg delay

58 min

Across delayed arrivals only, not all flights

Cancelled

1.54%

National rate is 1.81%

1 hour+ late

10.0%

National rate is 8.1%

These figures cover 325 flights between July 2025 and June 2026. Beyond the headline rate, 10.0% 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 608 flies

B6 608 flies LAS to FLL without a single fixed slot. Its most common scheduled departure was 23:59, used on 116 of 325 flights, with 23:50 (37 flights) and 23:48 (33 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 23:59116 flights35.7%
Departs 23:5037 flights11.4%
Departs 23:4833 flights10.2%

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 23:59 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and B6 608 runs level with that at 72.2%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

B6 608 next to LAS to FLL

Every carrier on LAS to FLL combined arrived on time 74.8% of the time across 1,048 flights, so B6 608 is 3 points behind it. JetBlue flew 781 flights on the same city pair under all its flight numbers, including this one, and those ran 76.7% on time. Across its whole network JetBlue Airways managed 72.7%, close to this flight's figure.

B6 608 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 608thin sample	325	72.2%	58 min	1.54%	C
All JetBlue Airways on LAS–FLL	781	76.7%	57 min	2.05%	B
All carriers on LAS–FLL	1,048	74.8%	69 min	2.00%	C
JetBlue Airways, whole network	234,468	72.7%	76 min	2.56%	C

Across the year

B6 608 quarter by quarter

B6 608 did not run the same all year. Its best quarter was Jul–Sep 2025 at 85.7% on time and its weakest Jan–Mar 2026 at 55.6%, a swing of 30 points on roughly 81 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 flights85.7%
Oct–Dec 202591 flights74.4%
Jan–Mar 202656 flights55.6%
Apr–Jun 202686 flights65.9%

Scale runs 45% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, B6 608 ranged from 66.0% on Sunday to 77.8% on Saturday. With about 46 flights behind each day, a spread of 12 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why B6 608 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 58% of the 5,169 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
58%
Carrier
31%
National Airspace System
10%
Extreme weather
0%

58% 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 5,169 reported delay minutes here, that single category outweighs weather by 58 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 5,169 delay minutes reported on B6 608.

Cancellations sit at 1.54% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

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. 10.0% 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.

At 2,173 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.

Every one of the 325 flights under B6 608 in the data flew LAS 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. 325 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 608

For a booking, read B6 608 as 72.2% on time with 1.54% cancelled over 325 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