Carrier route record
UAEWR→JAX
United Airlines · Newark to Jacksonville
- Flights
- 1,191
- Period
- September 2025 to August 2026
- Share of route
- 88%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with United Airlines.
United on EWR to JAX lands a B, 3 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That rests on 1,191 flights, with a median arrival 10 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate United on EWR to JAX from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
80.4%
Arrivals under 15 minutes late, of 1,165 completed flights
Avg delay
86 min
Across delayed arrivals only, not all flights
Cancelled
2.02%
National rate is 1.89%
Whole route
81.1%
Every carrier on EWR to JAX, 1,353 flights
These figures cover 1,191 flights between September 2025 and August 2026. Beyond the headline rate, 8.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
United against every carrier on EWR to JAX
United flew 1,191 of the 1,353 flights on EWR to JAX, most of the route. Its 80.4% on time is about level with the route as a whole at 81.1%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from Republic at 86.6% to United at 80.4%. 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 |
|---|---|---|---|---|---|
| Republic Airwaysthin sample | 162 | 86.6% | 54 min | 7.41% | A− |
| United Airlines (this page) | 1,191 | 80.4% | 86 min | 2.02% | B |
Flight by flight
United flight numbers on EWR to JAX
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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.
- 5am–8am313 flights92.2%
- 8am–11am3 flights—
- 11am–2pm348 flights79.4%
- 2pm–5pm185 flights73.5%
- 5pm–8pm76 flights74.7%
- 8pm–5am266 flights74.5%
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 92.2% of the time, against 73.5% for the afternoon 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 348 flights scheduled in it.
Across the year
United on EWR to JAX through the year
August is the worst month at 69.0% on time, 19 points below September, the best at 88.4%. 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. November was the busiest month here, with 113 flights.
Across the week, Friday is the strongest day at 83.9% on time and Sunday the weakest at 72.6%, a spread of 11 points.
Arrival by arrival
How late United on EWR to JAX runs when it is late
United on EWR to JAX often beats the schedule: 471 of 1,165 completed flights, 40%, arrived 15 minutes or more early. The 228 late arrivals split 71 under half an hour, 64 between 30 and 60 minutes, and 93 an hour or more.
- 15+ min early471 flights40.4%
- Within 15 min466 flights40.0%
- 15–29 min late71 flights6.1%
- 30–59 min late64 flights5.5%
- 1–2 hours late46 flights3.9%
- 2+ hours late47 flights4.0%
Scale runs 0% to 100%.
Share of 1,165 completed flights by arrival against schedule.
51 of 223 late departures made up the time and arrived on time, 23% of them. 56 flights left on time and still arrived late.
The worst days
Worst days for United on EWR to JAX
The latest arrival of the period was on 7 March 2026, 10 hours 53 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. Three of the five worst days fell in July 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 7 March 2026 | 10 hours 53 minutes | Late-arriving aircraft |
| 6 June 2026 | 9 hours 36 minutes | Carrier |
| 28 July 2026 | 8 hours 28 minutes | Extreme weather |
| 27 July 2026 | 8 hours 22 minutes | Late-arriving aircraft |
| 21 July 2026 | 7 hours 39 minutes | Extreme weather |
Delay causes
Why United runs late on this route
Late-arriving aircraft accounts for 44% of the 19,000 delay minutes carriers reported here, and the remaining four split what is left.
- 44%Late-arriving aircraft
- 24%Carrier
- 18%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 2.3 times the usual weather exposure. The split is drawn from 19,498 reported delay minutes.
44% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 19,000 reported delay minutes here, that single category outweighs weather by 3 to one.
Cancellations sit at 2.02% against a national 1.89%, which is ordinary. Diversions add another 0.17%.
Connections and stage length
What a delay here costs
8.0% of arrivals land an hour or more late, close to the national 8.3%, so 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.
The return leg runs 78.4% on time across 1,191 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 1,191 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 August 69.0%, a swing of 19 points. If the dates move at all, move them out of August before you think about anything else. 1,165 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 JAX86.6%
- United Airlines network-wide record
- Newark Liberty International (EWR) delay statistics
- Jacksonville International (JAX) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.05 million flight records
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.