Flight number record
UA 1391
United Airlines · West Palm Beach to Newark
- Route
- PBI → EWR
- Departs
- 10:00
- Flights
- 258
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 1391, check with United Airlines.
UA 1391 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 13 points better than the national rate of 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 258 flights, with a median arrival 14 minutes early.
Set against the rest of the country, UA 1391's record is 13 points better than the US average of 77.3%. That gap is worth roughly 125 fewer late arrivals for every thousand flights.
Key figures
On time
89.8%
Arrivals under 15 minutes late, of 254 completed flights
Avg delay
71 min
Across delayed arrivals only, not all flights
Cancelled
1.55%
National rate is 1.89%
1 hour+ late
3.9%
National rate is 8.3%
These figures cover 258 flights between September 2025 and August 2026. The median arrival is 14 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.
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Schedule
When UA 1391 flies
UA 1391 flies PBI to EWR without a single fixed slot. Its most common scheduled departure was 10:00, used on 53 of 258 flights, with 10:37 (43 flights) and 10:25 (32 flights) next.
- Departs 10:0053 flights20.5%
- Departs 10:3743 flights16.7%
- Departs 10:2532 flights12.4%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 10:00 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and UA 1391 runs 6 points better at 89.8%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
UA 1391 next to PBI to EWR
Every carrier on PBI to EWR combined arrived on time 75.8% of the time across 3,394 flights, so UA 1391 is 14 points ahead of it. United flew 2,619 flights on the same city pair under all its flight numbers, including this one, and those ran 77.9% on time. Across its whole network United Airlines managed 78.8%, which this flight beats by 11 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1391thin sample | 258 | 89.8% | 71 min | 1.55% | A |
| All United Airlines on PBI–EWR | 2,619 | 77.9% | 92 min | 2.33% | B |
| All carriers on PBI–EWR | 3,394 | 75.8% | 87 min | 3.09% | B− |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 1391 quarter by quarter
Quarter by quarter UA 1391 held fairly steady: 88.8% in Oct–Dec 2025, 89.8% in Jan–Mar 2026 and 88.0% in Apr–Jun 2026. A spread of 2 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202527 flights—
- Oct–Dec 202591 flights88.8%
- Jan–Mar 202690 flights89.8%
- Apr–Jun 202650 flights88.0%
Scale runs 80% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, UA 1391 did best on Wednesday at 100.0% on time and worst on Thursday at 83.8%. Each day rests on about 37 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 1391 runs when it is late
UA 1391 often beats the schedule: 121 of 254 completed flights, 48%, arrived 15 minutes or more early. The 26 late arrivals split 11 under half an hour, 5 between 30 and 60 minutes, and 10 an hour or more.
- 15+ min early121 flights47.6%
- Within 15 min107 flights42.1%
- 15–29 min late11 flights4.3%
- 30–59 min late5 flights2.0%
- 1–2 hours late4 flights1.6%
- 2+ hours late6 flights2.4%
Scale runs 0% to 100%.
Share of 254 completed flights by arrival against schedule.
6 of 26 late departures made up the time and arrived on time, 23% of them. 6 flights left on time and still arrived late.
The worst days
Worst days for UA 1391
The latest arrival of the period was on 12 September 2025, 4 hours 45 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). On three of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 12 September 2025 | 4 hours 45 minutes | Carrier |
| 2 May 2026 | 3 hours 28 minutes | Late-arriving aircraft |
| 14 December 2025 | 3 hours 6 minutes | Late-arriving aircraft |
| 2 November 2025 | 2 hours 19 minutes | National Airspace System |
| 28 December 2025 | 2 hours 14 minutes | Late-arriving aircraft |
Delay causes
Why UA 1391 runs late
Carrier accounts for 46% of the 1,842 delay minutes carriers reported here, and the remaining four split what is left.
- 46%Carrier
- 32%Late-arriving aircraft
- 22%National Airspace System
The largest share of delay minutes, 46%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 851 of the 1,842 delay minutes reported here. The split is drawn from 1,842 delay minutes reported on UA 1391.
Cancellations sit at 1.55% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 3.9% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
The 1,024 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 same number turns up on two other city pairs in the data, including EWR to JAX (137) and MCO to LAX (1), but none flew often enough under UA 1391 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to PBI to EWR only.
One caution: this is a thin sample. 258 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 1391
For a booking, read UA 1391 as 89.8% on time with 1.55% cancelled over 258 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- PBI to EWR, every carrier and departure
- EWR to PBI, the return direction
- United Airlines 1395 on the same route60.5%
- JetBlue Airways 144 on the same route75.0%
- JetBlue Airways 2144 on the same route63.5%
- United Airlines 2158 on the same route93.1%
- Palm Beach International (PBI) delay statistics
- Newark Liberty International (EWR) delay statistics
- United Airlines on-time record
- Every United Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.