Carrier route record
UAEWR→JAX
United Airlines · Newark to Jacksonville
- Flights
- 1,175
- Period
- July 2025 to June 2026
- Share of route
- 86%
- Carriers
- 2
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with United Airlines.
United on EWR to JAX lands a B, 4 points better than the national rate of 77.6%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That is a workable record, not a spotless one. That rests on 1,175 flights, with a median arrival 9 minutes early.
Set against the rest of the country, United's EWR to JAX record is 4 points better than the US average of 77.6%. That gap is worth roughly 40 fewer late arrivals for every thousand flights.
Key figures
On time
81.6%
Arrivals under 15 minutes late, of 1,155 completed flights
Avg delay
85 min
Across delayed arrivals only, not all flights
Cancelled
1.53%
National rate is 1.81%
Whole route
81.6%
Every carrier on EWR to JAX, 1,374 flights
These figures cover 1,175 flights between July 2025 and June 2026. The median arrival is 9 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Carrier by carrier
United against every carrier on EWR to JAX
United flew 1,175 of the 1,374 flights on EWR to JAX, most of the route. Its 81.6% on time is about level with the route as a whole at 81.6%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from United at 81.6% to Republic at 81.6%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
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 (this page) | 1,175 | 81.6% | 85 min | 1.53% | B |
| Republic Airwaysthin sample | 199 | 81.6% | 66 min | 6.53% | B− |
Flight by flight
United flight numbers on EWR to JAX
Departure window
When United runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 19 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–8am324 flights92.7%
- 8am–11am—
- 11am–2pm358 flights78.0%
- 2pm–5pm158 flights78.3%
- 5pm–8pm109 flights73.6%
- 8pm–5am226 flights77.4%
Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 92.7% of the time, against 73.6% for the evening window. That is 19 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 11am–2pm window is the busiest, with 358 flights scheduled in it.
Across the year
United on EWR to JAX through the year
September is the best month on the calendar at 88.4% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. November was the busiest month here, with 113 flights.
Across the week, Friday is the strongest day at 87.4% on time and Sunday the weakest at 74.1%. 13 points is a smaller lever than departure hour, but it is free.
Delay causes
Why United runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 44% of the 18,000 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.
- 44%Late-arriving aircraft
- 24%Carrier
- 19%National Airspace System
- 14%Extreme weather
Extreme weather accounts for 14% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.2 times the usual weather exposure. The split is drawn from 18,006 reported delay minutes.
44% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 18,000 reported delay minutes here, that single category outweighs weather by 3 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit.
Cancellations sit at 1.53% against a national 1.81%, which is ordinary. Diversions add another 0.17%.
Connections and stage length
What a delay here costs
7.4% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last an hour and a half, which a normal layover absorbs.
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 79.9% on time across 1,174 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 1,175 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 United on EWR to JAX
Put together: the calendar is the biggest lever here, not the carrier or the hour. September runs 88.4% on time and March 74.7%, a swing of 14 points. If the dates move at all, move them out of March before you think about anything else. 1,155 completed flights over 12 months sit behind that.
Related
Where to go next
- EWR to JAX, every carrier
- United on JAX to EWR, the return leg
- Republic Airways on EWR to JAX81.6%
- United Airlines network-wide record
- Newark Liberty International (EWR) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.04 million flight records
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.