Flight number record

UA 2678

United Airlines · Newark to Jacksonville

Route: EWR → JAX
Departs: 13:00
Flights: 309
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 2678, check with United Airlines.

UA 2678 lands a B+, 3 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 about 55 minutes on average. That is a workable record, not a spotless one. That rests on 309 flights, with a median arrival 11 minutes early.

On time

80.7%

Arrivals under 15 minutes late, of 306 completed flights

Avg delay

55 min

Across delayed arrivals only, not all flights

Cancelled

0.65%

National rate is 1.81%

1 hour+ late

5.6%

National rate is 8.1%

These figures cover 309 flights between July 2025 and June 2026. The median arrival is 11 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.

Schedule

When UA 2678 flies

UA 2678 flies EWR to JAX without a single fixed slot. Its most common scheduled departure was 13:00, used on 102 of 309 flights, with 12:30 (48 flights) and 13:01 (34 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 13:00102 flights33.0%
Departs 12:3048 flights15.5%
Departs 13:0134 flights11.0%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 13:00 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and UA 2678 runs level with that at 80.7%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

UA 2678 next to EWR to JAX

Every carrier on EWR to JAX combined arrived on time 81.6% of the time across 1,374 flights, so UA 2678 is about level with it. United flew 1,175 flights on the same city pair under all its flight numbers, including this one, and those ran 81.6% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 2 points.

UA 2678 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 2678thin sample	309	80.7%	55 min	0.65%	B+
All United Airlines on EWR–JAX	1,175	81.6%	85 min	1.53%	B
All carriers on EWR–JAX	1,374	81.6%	82 min	2.26%	B
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 2678 quarter by quarter

UA 2678 did not run the same all year. Its best quarter was Apr–Jun 2026 at 91.7% on time and its weakest Oct–Dec 2025 at 71.7%, a swing of 20 points on roughly 77 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Jul–Sep 202543 flights88.1%
Oct–Dec 202592 flights71.7%
Jan–Mar 202690 flights76.1%
Apr–Jun 202684 flights91.7%

Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, UA 2678 did best on Thursday at 86.7% on time and worst on Saturday at 68.4%. Each day rests on about 44 flights, so a gap of 18 points is worth noticing but could still narrow in another year.

Delay causes

Why UA 2678 runs late

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 3,241 reported delay minutes.

Carrier
40%
National Airspace System
35%
Late-arriving aircraft
26%

35% 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 1,121 minutes out of 3,241, against a national NAS share of 21%. The split is drawn from 3,241 delay minutes reported on UA 2678.

Cancellations are rare at 0.65%, below the national 1.81% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

Connections and routes

What a delay on this flight costs

5.6% 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 about 55 minutes, 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 same number turns up on one other city pair in the data, including LAS to IAH (41), but none flew often enough under UA 2678 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to EWR to JAX only.

One caution: this is a thin sample. 309 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

What to do with this

Booking UA 2678

For a booking, read UA 2678 as 80.7% on time with 0.65% cancelled over 309 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

A flight number here means United Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.

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.

Key figures