Carrier route record
UAPWM→EWR
United Airlines · Portland to Newark
- Flights
- 151
- Period
- July 2025 to June 2026
- Share of route
- 14%
- Carriers
- 2
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with United Airlines.
United on PWM to EWR earns an A−. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 10 points better than the national rate of 77.6%. When something does go wrong the average delay runs close to two hours. That rests on 151 flights, with a median arrival 11 minutes early.
Set against the rest of the country, United's PWM to EWR record is 10 points better than the US average of 77.6%. That gap is worth roughly 98 fewer late arrivals for every thousand flights.
Key figures
On time
87.4%
Arrivals under 15 minutes late, of 143 completed flights
Avg delay
112 min
Across delayed arrivals only, not all flights
Cancelled
5.30%
National rate is 1.81%
Whole route
83.1%
Every carrier on PWM to EWR, 1,095 flights
These figures cover 151 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.
Carrier by carrier
United against every carrier on PWM to EWR
United flew 151 of the 1,095 flights on PWM to EWR, about 14% of it. Its 87.4% on time is 4 points better than the route as a whole, which runs 83.1%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from United at 87.4% to Republic at 82.4%.
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)thin sample | 151 | 87.4% | 112 min | 5.30% | A− |
| Republic Airways | 944 | 82.4% | 95 min | 3.60% | B− |
Departure window
When United runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 151 flights.
There are not enough flights in each departure window to split United's PWM to EWR record by time of day without the percentages moving on noise. The headline rate of 87.4% is the reliable figure here.
Across the year
United on PWM to EWR through the year
- Jul–Sep 202546 flights92.7%
- Oct–Dec 202566 flights86.2%
- Jan–Mar 202639 flights83.8%
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 87.4% on time across 151 flights.
Quarter by quarter United on PWM to EWR held fairly steady: 92.7% in Jul–Sep 2025, 86.2% in Oct–Dec 2025 and 83.8% in Jan–Mar 2026. A spread of 9 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
Delay causes
Why United runs late on this route
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 2,014 reported delay minutes.
- 38%Carrier
- 36%Late-arriving aircraft
- 26%National Airspace System
36% 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 2,014 reported delay minutes here, that single category outweighs weather by 36 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. The split is drawn from 2,014 reported delay minutes.
The largest share of delay minutes, 38%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 775 of the 2,014 delay minutes reported here.
Cancellations run at 5.30%, against 1.81% nationally. That is about one flight in twenty 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 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 close to two hours, which a normal layover absorbs.
At 284 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 5am–8am window matters as much as it does.
The return leg is a different operation and performs like one: it runs 56.4% on time across 159 flights, 31 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 31 points of difference.
One caution: this is a thin sample. 151 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 United on PWM to EWR
Put together: the delay figures matter less here than the 5.30% cancellation rate. A late arrival costs you close to two hours; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 143 completed flights over 12 months sit behind that.
Related
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.