Route reliability record

EWR→FLL

Newark to Fort Lauderdale

Flights: 4,762
Period: June 2025 to May 2026
Distance: 1,065 mi
Carriers: 3

This route carries a cancellation problem, not just a delay problem: 3.5% of scheduled flights never operate, against 1.8% nationally. Of the ones that do fly, close to three flights in four 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 4,762 flights, of which United Airlines flew 2,640 at 77.6% on time.

United Airlines is the most reliable of the three carriers covered here at 77.6% on time across 2,640 flights.

On time

74.7%

Arrivals under 15 minutes late, of 4,586 completed flights

Avg delay

75 min

Across delayed arrivals only, not all flights

Cancelled

3.51%

National rate is 1.80%

Best carrier

United

77.6% on time across 2,640 flights

These figures cover 4,762 flights between June 2025 and May 2026. Beyond the headline rate, 10.1% 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.

Carrier by carrier

Which airline is most reliable on EWR to FLL

The choice of carrier is not cosmetic here. United Airlines arrives on time 77.6% of the time; Spirit Airlines manages 70.9%. Sample sizes sit next to every figure, because a two-point gap across 1,135 flights means less than a ten-point one.

On-time performance by carrier on EWR to FLL
Airline	Flights	On time	Avg delay	Cancelled	Grade
United Airlines	2,640	77.6%	69 min	2.20%	B
JetBlue Airways	987	71.3%	81 min	3.34%	C−
Spirit Airlines	1,135	70.9%	83 min	6.70%	C−

Spirit Airlines cancels 6.7% 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.

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 22 points, against 7 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

5am–8am1,094 flights87.3%
8am–11am728 flights75.8%
11am–2pm813 flights74.6%
2pm–5pm622 flights72.6%
5pm–8pm985 flights65.1%
8pm–5am520 flights67.5%

Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.

Book the early departure. Flights leaving between 5am–8am arrive on time 87.3% of the time, against 65.1% for the evening window. That is 22 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on.

Across the year

When delays peak on this route

This route's year swings by 20 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.

Darker means more delays. Figures are on-time percentages.May best, December worst

December is the weak month at 65.8% on time, against 86.0% in May. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days.

Across the week, Tuesday is the strongest day at 81.4% on time and Sunday the weakest at 64.0%. 17 points is a smaller lever than departure hour, but it is free.

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 87,000 reported delay minutes.

National Airspace System
37%
Late-arriving aircraft
33%
Carrier
24%
Extreme weather
6%
Security
0%

37% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 32,000 minutes out of 87,000, against a national NAS share of 21%.

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 87.3% on time here.

Cancellations run at 3.51%, against 1.80% nationally. That is about one flight in 30 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

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 10.1% of arrivals land a full hour or more behind schedule, against 8.2% 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.

The 1,065 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

The return leg is a different operation and performs like one: it runs 70.1% on time across 4,759 flights, 5 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 5 points of difference.

The sample behind these figures is 4,762 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.

What to do with this

Booking this route

Put together: the delay figures matter less here than the 3.51% 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.

Common questions

EWR to FLL questions

How often is EWR to FLL delayed?

About one flight in four arrive at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 25.3% of the 4,762 flights in this analysis, against 22.6% nationally. Delayed flights are late by a little over an hour on average.

Which airline is most reliable on EWR to FLL?

United Airlines leads at 77.6% on time across 2,640 flights. Spirit Airlines is at the other end on 70.9%, a gap of 7 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 EWR to FLL?

The 5am–8am departure window is the strongest at 87.3% on time. The 5pm–8pm window is the weakest at 65.1%, 22 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 December delays on EWR to FLL?

December is the weakest month at 65.8% on time, compared with 86.0% in May. Across the year that is 20 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.

Where to go next

Direction matters. EWR to FLL and FLL to EWR are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.

Source: US DOT Bureau of Transportation Statistics, on-time performance data, June 2025 to May 2026. Updated monthly. How this data is collected.

Key figures