Carrier route record

UAPHX→EWR

United Airlines · Phoenix to Newark

Flights: 1,494
Period: July 2025 to June 2026
Share of route: 60%
Carriers: 2

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

United on PHX to EWR lands a B, 4 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 a little over an hour on average. That is a workable record, not a spotless one. That rests on 1,494 flights, with a median arrival 9 minutes early.

The US average over the same twelve months is 77.6%, so there is little to separate United on PHX to EWR from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

On time

81.4%

Arrivals under 15 minutes late, of 1,454 completed flights

Avg delay

78 min

Across delayed arrivals only, not all flights

Cancelled

1.81%

National rate is 1.81%

Whole route

79.5%

Every carrier on PHX to EWR, 2,489 flights

These figures cover 1,494 flights between July 2025 and June 2026. Beyond the headline rate, 8.2% 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

United against every carrier on PHX to EWR

United flew 1,494 of the 2,489 flights on PHX to EWR, most of the route. Its 81.4% on time is 2 points better than the route as a whole, which runs 79.5%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from United at 81.4% to American at 76.7%.

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.

On-time performance by carrier on PHX to EWR
Airline	Flights	On time	Avg delay	Cancelled	Grade
United Airlines (this page)	1,494	81.4%	78 min	1.81%	B
American Airlines	995	76.7%	67 min	2.11%	B

Flight by flight

United flight numbers on PHX to EWR

UA 137523:5484.9% · 281 flights

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 27 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–8am243 flights95.8%
8am–11am301 flights81.4%
11am–2pm284 flights69.3%
2pm–5pm194 flights73.0%
5pm–8pm123 flights81.9%
8pm–5am349 flights85.5%

Scale runs 60% to 100%. Rows with fewer than 30 flights show a dash.

The weak window here is the middle of the day, not the evening: 11am–2pm runs 69.3% on time against 95.8% for 5am–8am. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 8pm–5am window is the busiest, with 349 flights scheduled in it.

Across the year

United on PHX to EWR through the year

Darker means more delays. Figures are on-time percentages.April best, August worst

August is the worst month at 66.1% on time, 29 points below April, the best at 95.0%. 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 152 flights.

Across the week, Tuesday is the strongest day at 89.4% on time and Sunday the weakest at 73.6%. 16 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. National Airspace System accounts for 50% of the 21,000 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.

National Airspace System
50%
Late-arriving aircraft
23%
Carrier
23%
Extreme weather
4%

50% 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 11,000 minutes out of 21,000, against a national NAS share of 21%. The split is drawn from 20,936 reported delay minutes.

Cancellations sit at 1.81% against a national 1.81%, which is ordinary. Diversions add another 0.87%.

Connections and stage length

What a delay here costs

8.2% 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 a little over an hour, which a normal layover absorbs.

At 2,133 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.

The return leg runs 81.1% on time across 1,493 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 1,494 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 PHX to EWR

Put together: the calendar is the biggest lever here, not the carrier or the hour. April runs 95.0% on time and August 66.1%, a swing of 29 points. If the dates move at all, move them out of August before you think about anything else. 1,454 completed flights over 12 months sit behind that.

Where to go next

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