Flight number record
UA 1745
United Airlines · Denver to Newark
- Route
- DEN → EWR
- Departs
- 23:59
- Flights
- 302
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 1745, check with United Airlines.
UA 1745 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 14 points better than the national rate of 77.3%. When something does go wrong the average delay runs an hour and a half. That rests on 302 flights, with a median arrival 14 minutes early.
Set against the rest of the country, UA 1745's record is 14 points better than the US average of 77.3%. That gap is worth roughly 143 fewer late arrivals for every thousand flights.
Key figures
On time
91.6%
Arrivals under 15 minutes late, of 296 completed flights
Avg delay
87 min
Across delayed arrivals only, not all flights
Cancelled
1.99%
National rate is 1.89%
1 hour+ late
1.7%
National rate is 8.3%
These figures cover 302 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 1745 flies
UA 1745 is scheduled to leave Denver (DEN) at 23:59 local time and reach Newark (EWR) at 05:37. That slot held for 242 of the 302 scheduled departures in the data, so the figures below describe one steady operation rather than a number that moved around the clock.
- Departs 23:59242 flights80.1%
- Departs 23:5036 flights11.9%
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 23:59 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and UA 1745 runs 22 points better at 91.6%. 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 1745 next to DEN to EWR
Every carrier on DEN to EWR combined arrived on time 78.8% of the time across 3,344 flights, so UA 1745 is 13 points ahead of it. Across its whole network United Airlines managed 78.8%, which this flight beats by 13 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1745thin sample | 302 | 91.6% | 87 min | 1.99% | A |
| All United Airlines on DEN–EWR | 3,344 | 78.8% | 83 min | 1.53% | B |
| All carriers on DEN–EWR | 3,344 | 78.8% | 83 min | 1.53% | B |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 1745 quarter by quarter
UA 1745 did not run the same all year. Its best quarter was Oct–Dec 2025 at 96.9% on time and its weakest Jul–Sep 2026 at 77.0%, a swing of 20 points on roughly 76 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 202524 flights—
- Oct–Dec 202566 flights96.9%
- Jan–Mar 202662 flights94.9%
- Apr–Jun 202688 flights96.6%
- Jul–Sep 202662 flights77.0%
Scale runs 70% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, UA 1745 ranged from 83.7% on Friday to 95.2% on Tuesday. With about 43 flights behind each day, a spread of 12 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late UA 1745 runs when it is late
UA 1745 often beats the schedule: 143 of 296 completed flights, 48%, arrived 15 minutes or more early. The 25 late arrivals split 10 under half an hour, 10 between 30 and 60 minutes, and 5 an hour or more.
- 15+ min early143 flights48.3%
- Within 15 min128 flights43.2%
- 15–29 min late10 flights3.4%
- 30–59 min late10 flights3.4%
- 1–2 hours late2 flights0.7%
- 2+ hours late3 flights1.0%
Scale runs 0% to 100%.
Share of 296 completed flights by arrival against schedule.
A late pushback is often recovered here: of 25 departures that left 15 minutes late or more, 9 still arrived on time. 9 flights left on time and still arrived late.
The worst days
Worst days for UA 1745
The latest arrival of the period was on 8 August 2026, 10 hours 48 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in August 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 8 August 2026 | 10 hours 48 minutes | Carrier |
| 26 December 2025 | 9 hours 41 minutes | Late-arriving aircraft |
| 13 August 2026 | 2 hours 22 minutes | Late-arriving aircraft |
| 4 June 2026 | 1 hour 51 minutes | Carrier |
| 21 August 2026 | 1 hour 8 minutes | Late-arriving aircraft |
Delay causes
Why UA 1745 runs late
Carrier accounts for 47% of the 2,177 delay minutes carriers reported here, and the remaining four split what is left.
- 47%Carrier
- 40%Late-arriving aircraft
- 13%National Airspace System
40% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 2,177 reported delay minutes here, that single category outweighs weather by 40 to one. The split is drawn from 2,177 delay minutes reported on UA 1745.
Cancellations sit at 1.99% 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 1.7% 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 1,605 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 same number turns up on six other city pairs in the data, including PHX to DEN (98), SFO to DEN (55) and SJC to DEN (27), but none flew often enough under UA 1745 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to EWR only.
One caution: this is a thin sample. 302 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 1745
For a booking, read UA 1745 as 91.6% on time with 1.99% cancelled over 302 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- DEN to EWR, every carrier and departure
- EWR to DEN, the return direction
- United Airlines 1233 on the same route78.4%
- United Airlines 1715 on the same route66.2%
- United Airlines 2613 on the same route70.1%
- United Airlines 1283 on the same route70.5%
- United Airlines 1505 on the same route69.0%
- United Airlines 2345 on the same route96.7%
- Denver International (DEN) 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.