Route reliability record
JAX→EWR
Jacksonville to Newark
- Flights
- 1,374
- Period
- July 2025 to June 2026
- Distance
- 820 mi
- Carriers
- 2
This route lands a B, 2 points better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by close to two hours on average. That is a workable record, not a spotless one. That rests on 1,374 JAX to EWR flights, with a median arrival 10 minutes early.
Best time to fly JAX to EWR: a 5am–8am departure, ideally on a Thursday. Flights in that window arrived on time 94.7% of the time and Thursday flights 81.4%, against 79.1% for the route overall.
The US average over the same twelve months is 77.6%, 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
79.1%
Arrivals under 15 minutes late, of 1,333 completed flights
Avg delay
101 min
Across delayed arrivals only, not all flights
Cancelled
2.69%
National rate is 1.81%
Best carrier
United
79.9% on time across 1,174 flights
These figures cover 1,374 flights between July 2025 and June 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 JAX to EWR
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 |
|---|---|---|---|---|---|
| United Airlines | 1,174 | 79.9% | 97 min | 1.62% | B |
| Republic Airwaysthin sample | 200 | 74.6% | 120 min | 9.00% | C− |
Flight by flight
Flights on JAX to EWR
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.
Best ways to make this trip
The most reliable ways to fly Jacksonville to Newark
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 | 78.6% | 79.9% | 1.62% | 5am–8am, Fri | UA 1144 09:40 |
| 2. JAX → JFKJacksonville to New York | JetBlue Airways | 73.9% | 77.0% | 4.04% | 5am–8am, Fri | B6 1678 06:20 |
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 34 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am348 flights94.7%
- 8am–11am287 flights89.0%
- 11am–2pm77 flights89.5%
- 2pm–5pm359 flights61.1%
- 5pm–8pm242 flights72.0%
- 8pm–5am61 flights62.1%
Scale runs 55% to 100%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 94.7% of the time, against 61.1% for the afternoon window. That is 34 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 2pm–5pm window is the busiest, with 359 flights scheduled in it.
Across the year
When delays peak on this route
This route's year swings by 33 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 58.7% on time, 33 points below April, the best at 91.7%. 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. March was the busiest month here, with 124 flights.
Across the week, Thursday is the strongest day at 81.4% on time and Sunday the weakest at 71.1%. 10 points is a smaller lever than departure hour, but it is free.
Delay causes
Why this route gets delayed
One category carries most of the weight here. National Airspace System accounts for 56% of the 28,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 56%National Airspace System
- 27%Late-arriving aircraft
- 13%Carrier
- 5%Extreme weather
56% 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 16,000 minutes out of 28,000, against a national NAS share of 21%. The split is drawn from 28,117 reported delay minutes.
Cancellations run at 2.69%, against 1.81% nationally. That is about one flight in 40 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 8.1% 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 820 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 runs 81.6% on time across 1,374 flights, within 3 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 1,374 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 EWR after this flight
What to do with this
Booking this route
Put together: the calendar is the biggest lever here, not the carrier or the hour. April runs 91.7% on time and July 58.7%, a swing of 33 points. If the dates move at all, move them out of July before you think about anything else. 1,333 completed flights over 12 months sit behind that.
Common questions
JAX to EWR questions
How often is JAX to EWR delayed?
About 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 20.9% of the 1,374 flights in this analysis, against 22.4% nationally. Delayed flights are late by close to two hours on average.
How reliable is JAX to EWR compared with the rest of the country?
79.1% of flights arrive on time here against a national 77.6%, a difference of 2 points in its favour. That is worth a B on this site's grading scale.
What time of day has the fewest delays on JAX to EWR?
The 5am–8am departure window is the strongest at 94.7% on time. The 2pm–5pm window is the weakest at 61.1%, 34 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 EWR?
July is the weakest month at 58.7% on time, compared with 91.7% in April. Across the year that is 33 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
- EWR to JAX — the return legseparate record
- Newark Liberty International (EWR) delay statistics
- United Airlines on JAX to EWR79.9%
- Republic Airways on JAX to EWR74.6%
- JAX to ATL, a related route84.9%
- MCO to EWR, a related route73.8%
- JAX to ORD, a related route77.3%
- United Airlines on-time record79.9%
- Republic Airways on-time record74.6%
- The US routes with the most cancellations
- The best time of day to fly, according to 7.04 million flight records
Direction matters. JAX to EWR and EWR 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.