Route reliability record
JAX→JFK
Jacksonville to New York
- Flights
- 1,188
- Period
- September 2025 to August 2026
- Distance
- 829 mi
- Carriers
- 3
This route carries a cancellation problem, not just a delay problem: 5.0% 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 C− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 1,188 JAX to JFK flights, with a median arrival 7 minutes early.
Best time to fly JAX to JFK: a 5am–8am departure, ideally on a Tuesday. Flights in that window arrived on time 91.1% of the time and Tuesday flights 80.7%, against 74.2% 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
74.2%
Arrivals under 15 minutes late, of 1,125 completed flights
Avg delay
93 min
Across delayed arrivals only, not all flights
Cancelled
5.05%
National rate is 1.89%
Best carrier
JetBlue
77.2% on time across 891 flights
These figures cover 1,188 flights between September 2025 and August 2026. Beyond the headline rate, 11.6% 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 JAX to JFK
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Republic Airwaysthin sample | 41 | 87.8% | 86 min | 0.00% | A+ |
| JetBlue Airways | 891 | 77.2% | 72 min | 5.50% | B− |
| Delta Air Linesthin sample | 256 | 61.6% | 137 min | 4.30% | D− |
Flight by flight
Flights on JAX 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.
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 Jacksonville 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. 1 of the top 2 use a different airport at one end.
| Option | Airline | Success | On time | Cancelled | Best departure | Most punctual flight |
|---|---|---|---|---|---|---|
| 1. JAX → EWRJacksonville to Newark | United Airlines | 76.8% | 78.4% | 2.10% | 5am–8am, Wed | UA 2673 06:24 |
| 2. JAX → JFKJacksonville to New York | JetBlue Airways | 73.0% | 77.2% | 5.50% | 5am–8am, Tue | B6 1678 06:05 |
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 half a point between the best and worst carrier.
- 5am–8am293 flights91.1%
- 8am–11am158 flights80.5%
- 11am–2pm111 flights82.6%
- 2pm–5pm63 flights87.3%
- 5pm–8pm508 flights60.5%
- 8pm–5am55 flights55.8%
Scale runs 45% to 95%.
The 8pm–5am window is where this operation falls apart: 55.8% on time, against 91.1% 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 5pm–8pm window is the busiest, with 508 flights scheduled in it.
Explore
Filter JAX 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 JAX to JFK, the best departure window is 5am–8am at 91.1% on time and the worst is 8pm–5am at 55.8%, a wide gap of 35.3 points. All US flights leaving 5am–8am ran 89.3%.
- 5–8am91.1%
- 8–11am80.5%
- 11am–2pm82.6%
- 2–5pm87.3%
- 5–8pm60.5%
- 8pm–5am55.8%
best all US flightsScale 45% to 95%.
Across the year
When delays peak on this route
This route's year swings by 25 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.
July is the worst month at 60.3% on time, 25 points below April, the best at 85.7%. 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. December was the busiest month here, with 134 flights.
Across the week, Tuesday is the strongest day at 80.7% on time and Sunday the weakest at 66.7%, a spread of 14 points.
Delay causes
Why this route gets delayed
Late-arriving aircraft accounts for 42% of the 27,000 delay minutes carriers reported here, and the remaining four split what is left.
- 42%Late-arriving aircraft
- 30%Carrier
- 25%National Airspace System
- 3%Extreme weather
- 0%Security
42% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 27,000 reported delay minutes here, that single category outweighs weather by 12 to one. The split is drawn from 27,058 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 91.1% on time here.
Cancellations run at 5.05%, 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
11.6% 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 829 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 74.0% on time across 1,187 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 1,188 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 5.05% cancellation rate. A late arrival costs you an hour and a half; 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. 1,125 completed flights over 12 months sit behind that.
Common questions
JAX to JFK questions
How often is JAX to JFK delayed?
About one flight in four arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 25.8% of the 1,188 flights in this analysis, against 22.7% nationally. Delayed flights are late by an hour and a half on average.
How reliable is JAX to JFK compared with the rest of the country?
74.2% of flights arrive on time here against a national 77.3%, a difference of 3 points against it. That is worth a C− on this site's grading scale.
What time of day has the fewest delays on JAX to JFK?
The 5am–8am departure window is the strongest at 91.1% on time. The 8pm–5am window is the weakest at 55.8%, 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 July delays on JAX to JFK?
July is the weakest month at 60.3% on time, compared with 85.7% in April. Across the year that is 25 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 JAX — the return legseparate record
- Jacksonville International (JAX) delay statistics
- John F. Kennedy International (JFK) delay statistics
- JetBlue Airways on JAX to JFK77.2%
- Delta Air Lines on JAX to JFK61.6%
- JAX to ATL, a related route83.8%
- LAX to JFK, a related route77.5%
- JAX to ORD, a related route76.9%
- Republic Airways on-time record87.8%
- JetBlue Airways on-time record77.2%
- Delta Air Lines on-time record61.6%
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
Direction matters. JAX to JFK and JFK to JAX 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.