Flight number record
B6 2102
JetBlue Airways · Fort Lauderdale to New York
- Route
- FLL → JFK
- Departs
- 20:59
- Flights
- 326
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s B6 2102, check with JetBlue Airways.
B6 2102 draws a C−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is a little over an hour behind schedule. Build slack into anything you connect to. That rests on 326 flights, with a median arrival 1 minute early.
The national on-time rate over the same period is 77.3%, so B6 2102 runs 11 points behind the country as a whole. Across a thousand flights that is about 113 extra late arrivals.
Key figures
On time
66.0%
Arrivals under 15 minutes late, of 309 completed flights
Avg delay
73 min
Across delayed arrivals only, not all flights
Cancelled
5.21%
National rate is 1.89%
1 hour+ late
15.9%
National rate is 8.3%
These figures cover 326 flights between September 2025 and August 2026. Beyond the headline rate, 15.9% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When B6 2102 flies
B6 2102 flies FLL to JFK without a single fixed slot. Its most common scheduled departure was 20:59, used on 49 of 326 flights.
- Departs 20:5949 flights15.0%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 20:59 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and B6 2102 runs 4 points worse at 66.0%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
B6 2102 next to FLL to JFK
Every carrier on FLL to JFK combined arrived on time 70.0% of the time across 3,896 flights, so B6 2102 is 4 points behind it. JetBlue flew 2,281 flights on the same city pair under all its flight numbers, including this one, and those ran 66.5% on time. Across its whole network JetBlue Airways managed 71.3%, which this flight trails by 5 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| B6 2102thin sample | 326 | 66.0% | 73 min | 5.21% | C− |
| All JetBlue Airways on FLL–JFK | 2,281 | 66.5% | 71 min | 5.30% | C− |
| All carriers on FLL–JFK | 3,896 | 70.0% | 73 min | 4.77% | C− |
| JetBlue Airways, whole network | 240,615 | 71.3% | 77 min | 3.56% | C− |
Across the year
B6 2102 quarter by quarter
B6 2102 did not run the same all year. Its best quarter was Jul–Sep 2025 at 76.7% on time and its weakest Jan–Mar 2026 at 44.4%, a swing of 32 points on roughly 65 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 202530 flights76.7%
- Oct–Dec 202589 flights61.9%
- Jan–Mar 202658 flights44.4%
- Apr–Jun 202687 flights75.6%
- Jul–Sep 202662 flights72.7%
Scale runs 35% to 80%.
By weekday, B6 2102 did best on Tuesday at 78.6% on time and worst on Monday at 50.0%. Each day rests on about 47 flights, so a gap of 29 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late B6 2102 runs when it is late
B6 2102 often beats the schedule: 91 of 309 completed flights, 29%, arrived 15 minutes or more early. The 105 late arrivals split 30 under half an hour, 26 between 30 and 60 minutes, and 49 an hour or more.
- 15+ min early91 flights29.4%
- Within 15 min113 flights36.6%
- 15–29 min late30 flights9.7%
- 30–59 min late26 flights8.4%
- 1–2 hours late33 flights10.7%
- 2+ hours late16 flights5.2%
Scale runs 0% to 100%.
Share of 309 completed flights by arrival against schedule.
23 of 115 late departures made up the time and arrived on time, 20% of them. 13 flights left on time and still arrived late.
The worst days
Worst days for B6 2102
The latest arrival of the period was on 14 December 2025, 5 hours 32 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. On three of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 14 December 2025 | 5 hours 32 minutes | National Airspace System |
| 12 March 2026 | 4 hours 41 minutes | Late-arriving aircraft |
| 6 July 2026 | 4 hours 36 minutes | National Airspace System |
| 17 March 2026 | 4 hours 20 minutes | Late-arriving aircraft |
| 8 November 2025 | 3 hours 34 minutes | Late-arriving aircraft |
Delay causes
Why B6 2102 runs late
Late-arriving aircraft accounts for 45% of the 7,638 delay minutes carriers reported here, and the remaining four split what is left.
- 45%Late-arriving aircraft
- 29%National Airspace System
- 25%Carrier
- 1%Extreme weather
- 0%Security
45% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 7,638 reported delay minutes here, that single category outweighs weather by 40 to one. The split is drawn from 7,638 delay minutes reported on B6 2102.
Cancellations run at 5.21%, against 1.89% nationally. That is about one flight in twenty 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
15.9% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
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.
Every one of the 326 flights under B6 2102 in the data flew FLL to JFK. 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 2102
For a booking, the cancellation rate is the figure to plan around on B6 2102: 5.21% of its 326 scheduled flights did not operate. A late arrival costs a little over an hour, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- FLL to JFK, every carrier and departure
- JFK to FLL, the return direction
- Delta Air Lines 2165 on the same route89.2%
- JetBlue Airways 1902 on the same route61.9%
- Delta Air Lines 305 on the same route71.3%
- JetBlue Airways 602 on the same route64.6%
- JetBlue Airways 1002 on the same route72.3%
- Delta Air Lines 1422 on the same route70.9%
- Fort Lauderdale-Hollywood International (FLL) delay statistics
- John F. Kennedy International (JFK) delay statistics
- JetBlue Airways on-time record
- Every JetBlue Airways flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.