Flight number record

B6 607

JetBlue Airways · Fort Lauderdale to Las Vegas

Route: FLL → LAS
Departs: 20:36
Flights: 325
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s B6 607, check with JetBlue Airways.

B6 607 sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 7 points worse than the national rate of 77.6%. The late ones land roughly 55 minutes behind schedule. That rests on 325 flights, with a median arrival 1 minute early.

The national on-time rate over the same period is 77.6%, so B6 607 runs 7 points behind the country as a whole. Across a thousand flights that is about 66 extra late arrivals.

On time

71.0%

Arrivals under 15 minutes late, of 324 completed flights

Avg delay

54 min

Across delayed arrivals only, not all flights

Cancelled

0.31%

National rate is 1.81%

1 hour+ late

10.5%

National rate is 8.1%

These figures cover 325 flights between July 2025 and June 2026. Beyond the headline rate, 10.5% 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 607 flies

B6 607 flies FLL to LAS without a single fixed slot. Its most common scheduled departure was 20:36, used on 58 of 325 flights, with 17:45 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 20:3658 flights17.8%
Departs 17:4537 flights11.4%

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 20:36 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and B6 607 runs level with that at 71.0%. 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 607 next to FLL to LAS

Every carrier on FLL to LAS combined arrived on time 77.4% of the time across 1,046 flights, so B6 607 is 6 points behind it. JetBlue flew 781 flights on the same city pair under all its flight numbers, including this one, and those ran 79.5% on time. Across its whole network JetBlue Airways managed 72.7%, which this flight trails by 2 points.

B6 607 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 607thin sample	325	71.0%	54 min	0.31%	C+
All JetBlue Airways on FLL–LAS	781	79.5%	52 min	1.41%	B
All carriers on FLL–LAS	1,046	77.4%	54 min	1.63%	B
JetBlue Airways, whole network	234,468	72.7%	76 min	2.56%	C

Across the year

B6 607 quarter by quarter

B6 607 did not run the same all year. Its best quarter was Oct–Dec 2025 at 75.8% on time and its weakest Apr–Jun 2026 at 61.6%, a swing of 14 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 flights75.0%
Oct–Dec 202591 flights75.8%
Jan–Mar 202656 flights70.9%
Apr–Jun 202686 flights61.6%

Scale runs 55% to 80%. Rows with fewer than 30 flights show a dash.

By weekday, B6 607 did best on Wednesday at 84.1% on time and worst on Sunday at 58.3%. Each day rests on about 46 flights, so a gap of 26 points is worth noticing but could still narrow in another year.

Delay causes

Why B6 607 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 42% of the 5,049 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
42%
National Airspace System
30%
Carrier
26%
Extreme weather
2%
Security
0%

42% 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 5,049 reported delay minutes here, that single category outweighs weather by 22 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 5,049 delay minutes reported on B6 607.

Cancellations are rare at 0.31%, below the national 1.81% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

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. 10.5% 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 607 in the data flew FLL to LAS. 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 607

For a booking, B6 607 is one of the weaker ways to fly FLL to LAS: 6 points below the route as a whole. If the schedule allows, compare it with the other departures listed on the route page before settling on this one.

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