FLL → JFK Flight Reliability

Right now

Origin · FLLNo disruption reported

Aviation weather is not currently a factor.

Updated 08:53 UTC

Fort Lauderdale airport profile →

Destination · JFKNo disruption reported

Aviation weather is not currently a factor.

Updated 08:51 UTC

New York airport profile →

Route reliability

July 2023 – July 2026

Route Reliability Score

40/ 100Weak

Better than 4% of comparable major US routes (4,598 compared)

Calculated from 11,942 flights. How this is calculated

On-time arrivals

71.8%

8,304 of 11,571

Cancellation rate

2.84%

339 cancelled

Median arrival delay

-4 min

Average 15.4 min

Severe delays

12.2%

60+ minutes late

Delay when late

81 min

Average, when 15+ min late

Flights analyzed

11,942

2 carriers

FLL → JFK arrives on time 71.8% of the time; the return trip, JFK → FLL, arrives on time 72.5% of the time.

FLL → JFK spends 28.8 minutes on the ground on a 1,069-mile trip: 18.4 minutes from pushback to wheels-up at FLL and 10.5 minutes from touchdown to gate at JFK.

Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026

What stands out

On-time performance swings unusually widely by time of day here, wider than 100% of 4,023 comparable routes.

91.2% on time for 5–9 AM departures, against 42.9% for 9 PM–5 AM.

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Ranked against every other route with the same kind of figure and at least 4,023 in the comparison.

Why FLL → JFK flights are cancelled

July 2023 – July 2026

FLL → JFK cancelled 339 of 11,942 scheduled flights — about 1 in every 35. The reason filed most often was the air traffic system, 36.3% of the cancellations coded on this route — about 1 in every 97 scheduled flights.

Share of cancellations

Air traffic36.3%

Weather36.0%

Airline27.7%

Security0.0%

Of 339 cancelled departures carrying a reason code.

What each reason means

The air traffic system1 in 97

Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.

123 cancellations, 36.3% of the total.

Extreme weather1 in 98

Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.

122 cancellations, 36.0% of the total.

The airline1 in 127

Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.

94 cancellations, 27.7% of the total.

Security—

A terminal evacuation, a security breach, screening equipment failure, or screening queues over 29 minutes.

0 cancellations, 0.0% of the total.

Reason codes are the operating airline’s own filing with US DOT, not an independent finding of fault. With only one or two carriers on the route, the split mostly reflects how they file. Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.

339 coded cancellations were recorded on FLL → JFK; the section appears from 50.

When it goes wrong

July 2023 – July 2026

One arrival in ten is worse than

73 min late

against a median of 4 min early

Arrived an hour or more late12.2%

Typical delay when late81 min

Cancelled2.84%

Landed somewhere else0.27%

FLL → JFK has an average that understates its risk: a typical arrival is 4 min early, but the worst tenth are 77 minutes worse than that. If the trip has something unmissable at the end of it, the median is the wrong number to plan against.

Percentiles over 11,942 operations; cancelled and diverted flights are counted separately.

Will your connection be tight enough?

Layovers at JFK after arriving from FLL.

Connection buffer and chance of missing by layover length, FLL → JFK arrivals
Connection time	Chance of missing	Reads as
30 min	43%	Likely to miss
45 min	28%	High risk
60 min	20%	High risk
90 min	12%	Some risk
120 min	7.9%	Some risk

This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 2.84% of the time and diverts 0.27% of the time, which a late arrival never shows up in.

Chance of missing is the share of 11,571 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.

The worst tenth of arrivals on this route land at least 73 minutes late (90th-percentile gate arrival delay), over 11,942 operations.

Any other layover length: connection checker.

Best time to fly

FLL → JFK flights departing 5–9 AM arrived on time 91.2% of the time, against 42.9% for 9 PM–5 AM departures, a gap of 48.3 percentage points.

By day and hour

On-time arrival rate for each weekday and scheduled departure hour, in local time at the departure airport (FLL).

Hour of departure matters more than day of the week: hourly averages sit a typical 13.6 points from the route-wide rate, weekday averages 3.8 points.

On-time arrival rate for FLL to JFK by weekday and scheduled departure hour, local time. Each button reads out one slot.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
6 AM–7 AM
7 AM–8 AM
8 AM–9 AM
9 AM–10 AM
10 AM–11 AM
11 AM–12 PM
12 PM–1 PM
1 PM–2 PM
2 PM–3 PM
3 PM–4 PM
4 PM–5 PM
5 PM–6 PM
6 PM–7 PM
7 PM–8 PM
8 PM–9 PM

On-time rate, % · stronger color, fewer on time

40–49
50–59
60–69
70–79
80–89
90–99

Fewer than 120 flights, not scored

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · On time is arrival within 15 minutes of schedule. Cells round to whole percentages; the table shows one decimal.

No slot is named best or worst: too few reach 500 flights. Departures before 6 AM and after 9 PM (407 flights) are not drawn: no slot in those hours has enough flights to score.

View as tableHide table

On-time arrival rate (%) with flights beneath, by scheduled departure hour and weekday for FLL to JFK. A dash means fewer than 120 flights, which are not scored.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
6 AM–7 AM	90.2% on time127 flights	94.4% on time127 flights	89.5% on time125 flights	94.8% on time136 flights	94.6% on time132 flights	89.8% on time139 flights	92.0% on time139 flights
7 AM–8 AM	90.6% on time181 flights	90.6% on time186 flights	94.4% on time181 flights	94.5% on time183 flights	89.3% on time180 flights	92.1% on time183 flights	90.7% on time178 flights
8 AM–9 AM	65 flights, too few to score	59 flights, too few to score	59 flights, too few to score	70 flights, too few to score	65 flights, too few to score	76 flights, too few to score	68 flights, too few to score
9 AM–10 AM	80.4% on time154 flights	87.4% on time142 flights	87.4% on time130 flights	89.1% on time129 flights	83.0% on time146 flights	80.4% on time145 flights	81.0% on time147 flights
10 AM–11 AM	53 flights, too few to score	57 flights, too few to score	56 flights, too few to score	59 flights, too few to score	57 flights, too few to score	58 flights, too few to score	63 flights, too few to score
11 AM–12 PM	73.0% on time231 flights	80.4% on time231 flights	79.2% on time228 flights	77.2% on time229 flights	71.7% on time228 flights	75.0% on time224 flights	67.1% on time230 flights
12 PM–1 PM	41 flights, too few to score	42 flights, too few to score	38 flights, too few to score	44 flights, too few to score	42 flights, too few to score	45 flights, too few to score	43 flights, too few to score
1 PM–2 PM	66 flights, too few to score	58 flights, too few to score	58 flights, too few to score	66 flights, too few to score	63 flights, too few to score	67 flights, too few to score	58 flights, too few to score
2 PM–3 PM	32 flights, too few to score	27 flights, too few to score	29 flights, too few to score	34 flights, too few to score	35 flights, too few to score	34 flights, too few to score	31 flights, too few to score
3 PM–4 PM	69.8% on time213 flights	69.8% on time210 flights	67.8% on time209 flights	63.4% on time209 flights	72.0% on time210 flights	70.6% on time203 flights	56.1% on time217 flights
4 PM–5 PM	43 flights, too few to score	41 flights, too few to score	42 flights, too few to score	42 flights, too few to score	39 flights, too few to score	41 flights, too few to score	44 flights, too few to score
5 PM–6 PM	73 flights, too few to score	69 flights, too few to score	67 flights, too few to score	69 flights, too few to score	76 flights, too few to score	62 flights, too few to score	69 flights, too few to score
6 PM–7 PM	112 flights, too few to score	88 flights, too few to score	98 flights, too few to score	105 flights, too few to score	112 flights, too few to score	92 flights, too few to score	111 flights, too few to score
7 PM–8 PM	60.5% on time182 flights	68.8% on time132 flights	65.2% on time136 flights	58.0% on time170 flights	65.9% on time177 flights	64.7% on time143 flights	46.4% on time178 flights
8 PM–9 PM	50.8% on time122 flights	69.5% on time120 flights	64.7% on time121 flights	119 flights, too few to score	119 flights, too few to score	63.0% on time122 flights	119 flights, too few to score

By departure window

5–9 AM91.2%

9 AM–12 PM77.8%

12–3 PM62.6%

3–6 PM63.6%

6–9 PM59.6%

9 PM–5 AM42.9%

By departure hour

12 AM

3 AM

6 AM

9 AM

12 PM

3 PM

6 PM

9 PM

Why FLL → JFK runs late

July 2023 – July 2026

Late-arriving aircraft36.9%

the inbound aircraft was late, so this flight started late

The airline32.8%

crew, maintenance, boarding and fueling, all within the carrier’s control

Air traffic control26.0%

airspace and airport capacity, including weather-driven flow control

Weather4.0%

weather severe enough to stop this flight specifically

Security0.2%

screening or terminal security incidents

Share of the delay minutes US DOT attributed to each cause for FLL → JFK. Only delays of 15 minutes or more are attributed.

Late-arriving aircraft is the largest cause on FLL → JFK, at 36.9%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 91.2% of the time and 9 PM–5 AM departures 42.9%.

How this route holds up in bad weather

July 2023 – July 2026

The harder-hit end is JFK, where the flight lands. Its figure counts departures from JFK, so it says more about how that airport copes than about this route. Bad weather cancels 3.5 times the normal rate at JFK against 2.1 times at FLL. Cancelled in bad weather against normal hours: FLL 3.3% against 1.6%, JFK 6.0% against 1.7%. Flights that did leave FLL in bad weather arrived on time 54.6% of the time, against 73.3% in normal hours.

Bad weather and normal hours at the airports

Scheduled departures, July 2023 – July 2026

Departures from FLL and JFK in hours of bad weather and in normal hours
Departures from	FLL	JFK
Cancelled in bad weather	3.3%	6.0%
Cancelled in normal hours	1.6%	1.7%
Arrived on time, bad weather	54.6%	64.1%
Arrived on time, normal hours	73.3%	79.7%
Departures in bad weather	13,418	46,497

Delta Air Lines (1.6% cancelled against 3.7% for the other carriers at FLL) cancelled fewer departures from FLL in bad weather than the other carriers there did in the same months. None of the route’s other carriers was clearly worse.

This route’s airlines in bad weather at FLL

All departures from FLL

Cancellation rates in bad weather at FLL for the airlines that fly FLL to JFK, against the other carriers at FLL in the same months
Airline	Bad-weather departures	Cancelled	Other carriers
Delta Air Lines	2,006	1.6%below the others	3.7%
JetBlue	2,832	3.2%about level	3.1%

These are airport figures, not route figures: every scheduled departure from FLL and JFK, to any destination, in hours the weather report called bad. The airline rows count each carrier’s departures from FLL on every route.

Weather source and limits. In full: FLL (airlines), JFK, What Weather Costs Each Airport, Who Cancels More When the Weather Turns, Airports That Change Places When Weather Turns.

Airlines on this route

Carriers with at least 200 flights, by the airline that operated each one.

Airlines on this route
Carrier	Flights	On time	Cancelled	Median delay	Severe
JetBlue	7,056	67.7%	3.26%	-1 min	14.3%
Delta Air Lines	4,886	77.5%	2.23%	-6 min	9.2%

JetBlue flew 59.1% of the 11,942 flights listed. JetBlue cancelled 3.26% of its flights here against 2.23% for Delta Air Lines.

Delta Air Lines arrived on time 9.8 percentage points more often than JetBlue on this route.

Other ways to fly Miami to New York

Airport pairs in the same two city markets, as the DOT defines them.

Other ways to fly Miami to New York
Route	Flights	On time	Cancelled	Median delay	Score
MIA→LGA Miami to New York	17,929	71.1%	2.72%	-4 min	42
MIA→JFK Miami to New York	15,830	71.5%	2.14%	-4 min	42
FLL→EWR Fort Lauderdale to Newark	15,386	72.9%	2.65%	-6 min	43
FLL→LGA Fort Lauderdale to New York	14,066	71.6%	2.63%	-4 min	43
MIA→EWR Miami to Newark	12,771	72.4%	2.66%	-5 min	42
FLL→JFK this route Fort Lauderdale to New York	11,942	71.8%	2.84%	-4 min	40

Flying to JFK from the Miami area? Compare FLL, MIA for JFK, with the same test for what counts as a real difference.

Flights on this route

Flight numbers with at least 600 operations here and still on the schedule.

Flights on this route
Flight	Scheduled	Operations	On time
B62102 JetBlue	8:50 PM	1,000	61.1%
B61902 JetBlue	6:00 AM	969	65.8%
DL2165 Delta Air Lines	7:00 AM	968	91.0%
B61802 JetBlue	4:30 PM	934	59.1%
B6602 JetBlue	11:30 AM	899	67.5%
B61002 JetBlue	9:50 AM	895	74.8%
B62202 JetBlue	5:35 PM	718	57.1%

DL2165 (7:00 AM) arrived on time 91.0% of the time, 33.9 points more often than B62202 (5:35 PM) at 57.1%.

Weekly and seasonal patterns

By day of week

Mon69.1%

Tue77.2%

Wed75.3%

Thu70.8%

Fri73.4%

Sat72.4%

Sun64.6%

Tuesday is historically the most reliable day and Sunday the least, a gap of 12.6 percentage points.

By month

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

July is historically the weakest month and October the strongest, a spread of 20.5 percentage points.

Reliability over time

July 2023 – July 2026

24

25

26

Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 70.2% against 75.4% in the 12 months before — declining by 5.2 percentage points.

Data and methodology

Calculated by FlyerIntel from 11,942 FLL → JFK flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.

Full methodology · Data sources · Report a problem

Analysis last recomputed September 26, 2026

FLL airport JFK airport Return direction JFK → FLL

FLL→JFK

Right now

Route reliability

What stands out

Why FLL → JFK flights are cancelled

Share of cancellations

What each reason means

When it goes wrong

Will your connection be tight enough?

Best time to fly

By day and hour

By departure window

By departure hour

Why FLL → JFK runs late

How this route holds up in bad weather

Bad weather and normal hours at the airports

This route’s airlines in bad weather at FLL

Airlines on this route

Other ways to fly Miami to New York

Flights on this route

Weekly and seasonal patterns

By day of week

By month

Reliability over time

Data and methodology