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DelayAtlas

Route reliability record

JFK→RSW

New York to Fort Myers

Flights
1,281
Period
September 2025 to August 2026
Distance
1,074 mi
Carriers
2
B−GRADE

This route carries a cancellation problem, not just a delay problem: 4.9% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, close to three flights in four arrive on time, worth a B− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 1,281 JFK to RSW flights, of which Delta Air Lines flew 472 at 85.7% on time.

Best time to fly JFK to RSW: a 5am–8am departure, ideally on a Wednesday. Flights in that window arrived on time 89.4% of the time and Wednesday flights 85.1%, against 77.8% for the route overall.

The US average over the same twelve months is 77.3%, so there is little to separate this route from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

Key figures

On time

77.8%

Arrivals under 15 minutes late, of 1,211 completed flights

Avg delay

74 min

Across delayed arrivals only, not all flights

Cancelled

4.92%

National rate is 1.89%

Best carrier

Delta

85.7% on time across 472 flights

These figures cover 1,281 flights between September 2025 and August 2026. Beyond the headline rate, 9.4% 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 JFK to RSW

The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 85.7% of the time; JetBlue Airways manages 73.2%. Sample sizes sit next to every figure, because a two-point gap across 809 flights means less than a ten-point one.

On-time performance by carrier on JFK to RSW
AirlineFlightsOn timeAvg delayCancelledGrade
Delta Air Lines47285.7%71 min5.08%A−
JetBlue Airways80973.2%75 min4.82%C−

Delta Air Lines cancels 5.1% 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 JFK to RSW

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.

Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Best ways to make this trip

The most reliable ways to fly New York to Fort Myers

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. 2 of the top 4 use a different airport at one end.

Most reliable ways to fly from JFK to RSW
OptionAirlineSuccessOn timeCancelledBest departureMost punctual flight
1. JFK → RSWNew York to Fort MyersDelta Air Lines81.3%85.7%5.08%5am–8am, SatDL 2320 07:00
2. EWR → RSWNewark to Fort MyersUnited Airlines76.9%78.5%2.03%5am–8am, Tue—
3. LGA → RSWNew York to Fort MyersDelta Air Lines70.8%74.4%4.78%5am–8am, SatDL 379 07:15
4. JFK → RSWNew York to Fort MyersJetBlue Airways69.7%73.2%4.82%5am–8am, WedB6 1529 06:30

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.

Plan this trip by month, day and time

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 32 points, against 13 points between the best and worst carrier.

  • 5am–8am447 flights89.4%
  • 8am–11am253 flights78.9%
  • 11am–2pm60 flights72.4%
  • 2pm–5pm319 flights72.7%
  • 5pm–8pm48 flights68.9%
  • 8pm–5am154 flights57.6%

Scale runs 50% to 95%.

The 8pm–5am window is where this operation falls apart: 57.6% on time, against 89.4% 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 447 flights scheduled in it.

Explore

Filter JFK to RSW 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 JFK to RSW, the best departure window is 5am–8am at 89.4% on time and the worst is 8pm–5am at 57.6%, a wide gap of 31.8 points. All US flights leaving 5am–8am ran 89.3%.

  • 5–8am89.4%
  • 8–11am78.9%
  • 11am–2pm72.4%
  • 2–5pm72.7%
  • 5–8pm68.9%
  • 8pm–5am57.6%

best all US flightsScale 50% to 95%.

Across the year

When delays peak on this route

This route's year swings by 37 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.

On-time rate by calendar month77J73F78M80A88M89J65J56A93S84O86N67D
Darker means more delays. Figures are on-time percentages.September best, August worst

August is the worst month at 55.8% on time, 37 points below September, the best at 93.1%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. February was the busiest month here, with 137 flights.

Across the week, Wednesday is the strongest day at 85.1% on time and Sunday the weakest at 72.9%, a spread of 12 points.

On-time rate by day of the week77.3Mon80.7Tue85.1Wed74.6Thu75.7Fri78.2Sat72.9Sun
Monday: 77.3 percent on time. Tuesday: 80.7 percent on time. Wednesday: 85.1 percent on time. Thursday: 74.6 percent on time. Friday: 75.7 percent on time. Saturday: 78.2 percent on time. Sunday: 72.9 percent on time

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 20,000 reported delay minutes.

  • Late-arriving aircraft
    38%
  • Carrier
    32%
  • National Airspace System
    28%
  • Extreme weather
    3%
  • Security
    0%

38% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 20,000 reported delay minutes here, that single category outweighs weather by 15 to one. The split is drawn from 19,860 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 89.4% on time here.

Cancellations run at 4.92%, 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

9.4% 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 1,074 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 77.3% on time across 1,279 flights, within half a point 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 1,281 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 RSW after this flight

What to do with this

Booking this route

Put together: the delay figures matter less here than the 4.92% 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. 1,211 completed flights over 12 months sit behind that.

Common questions

JFK to RSW questions

How often is JFK to RSW delayed?

Roughly one flight in five arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 22.2% of the 1,281 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 JFK to RSW?

Delta Air Lines leads at 85.7% on time across 472 flights. JetBlue Airways is at the other end on 73.2%, a gap of 13 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 JFK to RSW?

The 5am–8am departure window is the strongest at 89.4% on time. The 8pm–5am window is the weakest at 57.6%, 32 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 August delays on JFK to RSW?

August is the weakest month at 55.8% on time, compared with 93.1% in September. Across the year that is 37 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

Direction matters. JFK to RSW and RSW to JFK 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.