Flight number record
UA 2036
United Airlines · San Juan to Newark
- Route
- SJU → EWR
- Departs
- 18:45
- Flights
- 364
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 2036, check with United Airlines.
UA 2036 lands a B, 6 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 364 flights, with a median arrival 9 minutes early.
Set against the rest of the country, UA 2036's record is 6 points better than the US average of 77.3%. That gap is worth roughly 63 fewer late arrivals for every thousand flights.
Key figures
On time
83.6%
Arrivals under 15 minutes late, of 353 completed flights
Avg delay
66 min
Across delayed arrivals only, not all flights
Cancelled
1.92%
National rate is 1.89%
1 hour+ late
4.5%
National rate is 8.3%
These figures cover 364 flights between September 2025 and August 2026. The median arrival is 9 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 2036 flies
UA 2036 flies SJU to EWR without a single fixed slot. Its most common scheduled departure was 18:45, used on 138 of 364 flights, with 19:35 (125 flights) next.
- Departs 18:45138 flights37.9%
- Departs 19:35125 flights34.3%
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 18:45 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and UA 2036 runs 16 points better at 83.6%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
UA 2036 next to SJU to EWR
Every carrier on SJU to EWR combined arrived on time 74.6% of the time across 2,077 flights, so UA 2036 is 9 points ahead of it. United flew 1,113 flights on the same city pair under all its flight numbers, including this one, and those ran 77.4% on time. Across its whole network United Airlines managed 78.8%, which this flight beats by 5 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 2036thin sample | 364 | 83.6% | 66 min | 1.92% | B |
| All United Airlines on SJU–EWR | 1,113 | 77.4% | 104 min | 2.79% | B |
| All carriers on SJU–EWR | 2,077 | 74.6% | 88 min | 3.27% | C− |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 2036 quarter by quarter
UA 2036 did not run the same all year. Its best quarter was Oct–Dec 2025 at 88.9% on time and its weakest Jan–Mar 2026 at 74.1%, a swing of 15 points on roughly 73 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 202530 flights80.0%
- Oct–Dec 202591 flights88.9%
- Jan–Mar 202690 flights74.1%
- Apr–Jun 202691 flights88.9%
- Jul–Sep 202662 flights82.8%
Scale runs 65% to 95%.
By weekday, UA 2036 did best on Tuesday at 92.2% on time and worst on Saturday at 73.5%. Each day rests on about 52 flights, so a gap of 19 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 2036 runs when it is late
UA 2036 often beats the schedule: 111 of 353 completed flights, 31%, arrived 15 minutes or more early. The 58 late arrivals split 21 under half an hour, 21 between 30 and 60 minutes, and 16 an hour or more.
- 15+ min early111 flights31.4%
- Within 15 min184 flights52.1%
- 15–29 min late21 flights5.9%
- 30–59 min late21 flights5.9%
- 1–2 hours late6 flights1.7%
- 2+ hours late10 flights2.8%
Scale runs 0% to 100%.
Share of 353 completed flights by arrival against schedule.
14 of 52 late departures made up the time and arrived on time, 27% of them. In the other direction, 20 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at EWR.
The worst days
Worst days for UA 2036
The latest arrival of the period was on 2 August 2026, 7 hours 9 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 2 August 2026 | 7 hours 9 minutes | Late-arriving aircraft |
| 25 July 2026 | 4 hours 42 minutes | Late-arriving aircraft |
| 16 December 2025 | 3 hours 43 minutes | Late-arriving aircraft |
| 12 May 2026 | 3 hours 21 minutes | Late-arriving aircraft |
| 2 November 2025 | 2 hours 47 minutes | Late-arriving aircraft |
Delay causes
Why UA 2036 runs late
Late-arriving aircraft accounts for 64% of the 3,817 delay minutes carriers reported here, and the remaining four split what is left.
- 64%Late-arriving aircraft
- 20%National Airspace System
- 16%Carrier
64% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,817 reported delay minutes here, that single category outweighs weather by 64 to one. The split is drawn from 3,817 delay minutes reported on UA 2036.
Cancellations sit at 1.92% against a national 1.89%, which is ordinary. Diversions add another 1.10%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 4.5% 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.
At 1,608 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.
Every one of the 364 flights under UA 2036 in the data flew SJU to EWR. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 364 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 2036
For a booking, read UA 2036 as 83.6% on time with 1.92% cancelled over 364 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- SJU to EWR, every carrier and departure
- EWR to SJU, the return direction
- United Airlines 2219 on the same route83.3%
- United Airlines 1173 on the same route64.2%
- Luis Munoz Marin International (SJU) 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.