Route reliability record
FLL→JFK
Fort Lauderdale to New York
- Flights
- 3,896
- Period
- September 2025 to August 2026
- Distance
- 1,069 mi
- Carriers
- 2
This route carries a cancellation problem, not just a delay problem: 4.8% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, about seven flights in ten arrive on time, worth a C− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 3,896 FLL to JFK flights, of which Delta Air Lines flew 1,615 at 74.9% on time.
Best time to fly FLL to JFK: a 5am–8am departure, ideally on a Wednesday. Flights in that window arrived on time 90.6% of the time and Wednesday flights 78.0%, against 70.0% for the route overall.
The national on-time rate over the same period is 77.3%, so this route runs 7 points behind the country as a whole. Across a thousand flights that is about 73 extra late arrivals.
Key figures
On time
70.0%
Arrivals under 15 minutes late, of 3,701 completed flights
Avg delay
73 min
Across delayed arrivals only, not all flights
Cancelled
4.77%
National rate is 1.89%
Best carrier
Delta
74.9% on time across 1,615 flights
These figures cover 3,896 flights between September 2025 and August 2026. Beyond the headline rate, 12.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
Which airline is most reliable on FLL to JFK
The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 74.9% of the time; JetBlue Airways manages 66.5%. Sample sizes sit next to every figure, because a two-point gap across 2,281 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 1,615 | 74.9% | 77 min | 4.02% | C− |
| JetBlue Airways | 2,281 | 66.5% | 71 min | 5.30% | C− |
JetBlue Airways cancels 5.3% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.
Flight by flight
Flights on FLL to JFK
The flight numbers below flew this route at least 250 times in the period, busiest first. Each has its own record, with its schedule and delay causes.
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Best ways to make this trip
The most reliable ways to fly Fort Lauderdale to New York
Every airline on this route and on the routes between nearby airports, ranked by how often a scheduled flight actually operated and arrived on time. 5 of the top 5 use a different airport at one end.
| Option | Airline | Success | On time | Cancelled | Best departure | Most punctual flight |
|---|---|---|---|---|---|---|
| 1. FLL → EWRFort Lauderdale to Newark | United Airlines | 76.1% | 78.1% | 2.57% | 5am–8am, Wed | — |
| 2. PBI → EWRWest Palm Beach to Newark | United Airlines | 76.1% | 77.9% | 2.33% | 5am–8am, Tue | UA 2158 06:00 |
| 3. PBI → ISPWest Palm Beach to Islip | JetBlue Airways | 75.4% | 76.8% | 1.85% | 5am–8am, Wed | B6 544 10:09 |
| 4. PBI → JFKWest Palm Beach to New York | JetBlue Airways | 74.3% | 77.5% | 4.12% | 5am–8am, Tue | — |
| 5. MIA → EWRMiami to Newark | United Airlines | 73.7% | 75.5% | 2.37% | 5am–8am, Wed | UA 1864 07:07 |
Success is the share of scheduled flights that operated and arrived less than 15 minutes late, so a cancelled flight counts against it. “(route)” means the best time comes from every carrier on the route rather than this airline alone.
Departure window
The best time of day to leave
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 35 points, against 8 points between the best and worst carrier.
- 5am–8am758 flights90.6%
- 8am–11am584 flights76.4%
- 11am–2pm727 flights69.9%
- 2pm–5pm567 flights66.7%
- 5pm–8pm619 flights56.1%
- 8pm–5am641 flights55.4%
Scale runs 45% to 95%.
The 8pm–5am window is where this operation falls apart: 55.4% on time, against 90.6% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 5am–8am window is the busiest, with 758 flights scheduled in it.
Explore
Filter FLL to JFK by airline, time, month and day
Pick a breakdown and a carrier. The dashed mark on each row is the same slice for every US flight.
On FLL to JFK, the best departure window is 5am–8am at 90.6% on time and the worst is 8pm–5am at 55.4%, a wide gap of 35.2 points. All US flights leaving 5am–8am ran 89.3%.
- 5–8am90.6%
- 8–11am76.4%
- 11am–2pm69.9%
- 2–5pm66.7%
- 5–8pm56.1%
- 8pm–5am55.4%
best all US flightsScale 45% to 95%.
Across the year
When delays peak on this route
This route's year swings by 28 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.
September is the best month on the calendar at 85.2% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. March was the busiest month here, with 386 flights.
Across the week, Wednesday is the strongest day at 78.0% on time and Sunday the weakest at 57.2%, a spread of 21 points.
Delay causes
Why this route gets delayed
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 81,000 reported delay minutes.
- 37%Late-arriving aircraft
- 33%Carrier
- 28%National Airspace System
- 2%Extreme weather
- 0%Security
37% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 81,000 reported delay minutes here, that single category outweighs weather by 17 to one. The split is drawn from 81,416 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 90.6% on time here.
Cancellations run at 4.77%, 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 stage length
What a delay here actually costs
12.1% 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.
The return leg runs 71.9% on time across 3,907 flights, within 2 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
The sample behind these figures is 3,896 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
Work out the risk of missing a connection in JFK after this flight
What to do with this
Booking this route
Put together: the delay figures matter less here than the 4.77% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 3,701 completed flights over 12 months sit behind that.
Common questions
FLL to JFK questions
How often is FLL to JFK delayed?
Roughly one flight in three arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 30.0% of the 3,896 flights in this analysis, against 22.7% nationally. Delayed flights are late by a little over an hour on average.
Which airline is most reliable on FLL to JFK?
Delta Air Lines leads at 74.9% on time across 1,615 flights. JetBlue Airways is at the other end on 66.5%, a gap of 8 points. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.
What time of day has the fewest delays on FLL to JFK?
The 5am–8am departure window is the strongest at 90.6% on time. The 8pm–5am window is the weakest at 55.4%, 35 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are March delays on FLL to JFK?
March is the weakest month at 57.3% on time, compared with 85.2% in September. Across the year that is 28 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
- JFK to FLL — the return legseparate record
- Fort Lauderdale-Hollywood International (FLL) delay statistics
- John F. Kennedy International (JFK) delay statistics
- Delta Air Lines on FLL to JFK74.9%
- JetBlue Airways on FLL to JFK66.5%
- FLL to ATL, a related route71.0%
- LAX to JFK, a related route77.5%
- FLL to LGA, a related route64.8%
- Delta Air Lines on-time record74.9%
- JetBlue Airways on-time record66.5%
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
Direction matters. FLL to JFK and JFK to FLL are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.
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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.