Flight number record

B6 2501

JetBlue Airways · Fort Lauderdale to Los Angeles

Route: FLL → LAX
Departs: 21:40
Flights: 317
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s B6 2501, check with JetBlue Airways.

B6 2501 sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 9 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 317 flights, with a median arrival 2 minutes late.

The national on-time rate over the same period is 77.6%, so B6 2501 runs 9 points behind the country as a whole. Across a thousand flights that is about 88 extra late arrivals.

On time

68.8%

Arrivals under 15 minutes late, of 311 completed flights

Avg delay

59 min

Across delayed arrivals only, not all flights

Cancelled

1.89%

National rate is 1.81%

1 hour+ late

10.9%

National rate is 8.1%

These figures cover 317 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 2501 flies

B6 2501 flies FLL to LAX without a single fixed slot. Its most common scheduled departure was 21:40, used on 61 of 317 flights, with 20:40 (33 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 21:4061 flights19.2%
Departs 20:4033 flights10.4%

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 21:40 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and B6 2501 runs level with that at 68.8%. 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 2501 next to FLL to LAX

Every carrier on FLL to LAX combined arrived on time 76.5% of the time across 2,275 flights, so B6 2501 is 8 points behind it. JetBlue flew 1,749 flights on the same city pair under all its flight numbers, including this one, and those ran 76.0% on time. Across its whole network JetBlue Airways managed 72.7%, which this flight trails by 4 points.

B6 2501 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 2501thin sample	317	68.8%	59 min	1.89%	C
All JetBlue Airways on FLL–LAX	1,749	76.0%	58 min	0.80%	B+
All carriers on FLL–LAX	2,275	76.5%	62 min	0.92%	B+
JetBlue Airways, whole network	234,468	72.7%	76 min	2.56%	C

Across the year

B6 2501 quarter by quarter

Quarter by quarter B6 2501 held fairly steady: 73.0% in Jul–Sep 2025, 69.7% in Oct–Dec 2025, 69.4% in Jan–Mar 2026 and 63.1% in Apr–Jun 2026. A spread of 10 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202589 flights73.0%
Oct–Dec 202566 flights69.7%
Jan–Mar 202678 flights69.4%
Apr–Jun 202684 flights63.1%

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

By weekday, B6 2501 did best on Tuesday at 71.8% on time and worst on Sunday at 58.7%. Each day rests on about 45 flights, so a gap of 13 points is worth noticing but could still narrow in another year.

Delay causes

Why B6 2501 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 61% of the 5,738 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
61%
Carrier
25%
National Airspace System
14%

61% 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 5,738 reported delay minutes here, that single category outweighs weather by 61 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 5,738 delay minutes reported on B6 2501.

Cancellations sit at 1.89% 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. 10.9% 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.

At 2,343 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 317 flights under B6 2501 in the data flew FLL to LAX. 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. 317 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 2501

For a booking, B6 2501 is one of the weaker ways to fly FLL to LAX: 8 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