Flight number record
UA 1758
United Airlines · Denver to Kailua-Kona
- Route
- DEN → KOA
- Departs
- 12:15
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 1758, check with United Airlines.
UA 1758 earns an A+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 9 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 365 flights, with a median arrival 10 minutes early.
Set against the rest of the country, UA 1758's record is 9 points better than the US average of 77.3%. That gap is worth roughly 88 fewer late arrivals for every thousand flights.
Key figures
On time
86.1%
Arrivals under 15 minutes late, of 360 completed flights
Avg delay
73 min
Across delayed arrivals only, not all flights
Cancelled
0.82%
National rate is 1.89%
1 hour+ late
5.3%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. The median arrival is 10 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 1758 flies
UA 1758 flies DEN to KOA without a single fixed slot. Its most common scheduled departure was 12:15, used on 156 of 365 flights, with 12:00 (98 flights) and 12:10 (56 flights) next.
- Departs 12:15156 flights42.7%
- Departs 12:0098 flights26.8%
- Departs 12:1056 flights15.3%
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 12:15 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and UA 1758 runs 8 points better at 86.1%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
UA 1758 next to DEN to KOA
Every carrier on DEN to KOA combined arrived on time 85.4% of the time across 370 flights, so UA 1758 is about level with it. Across its whole network United Airlines managed 78.8%, which this flight beats by 7 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1758 | 365 | 86.1% | 73 min | 0.82% | A+ |
| All United Airlines on DEN–KOA | 370 | 85.4% | 76 min | 1.08% | A |
| All carriers on DEN–KOA | 370 | 85.4% | 76 min | 1.08% | A |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 1758 quarter by quarter
Quarter by quarter UA 1758 held fairly steady: 90.0% in Jul–Sep 2025, 85.9% in Oct–Dec 2025, 83.9% in Jan–Mar 2026, 84.6% in Apr–Jun 2026 and 90.0% in Jul–Sep 2026. A spread of 6 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202530 flights90.0%
- Oct–Dec 202592 flights85.9%
- Jan–Mar 202690 flights83.9%
- Apr–Jun 202691 flights84.6%
- Jul–Sep 202662 flights90.0%
Scale runs 75% to 95%.
By weekday, UA 1758 ranged from 80.8% on Wednesday to 92.3% on Thursday. With about 52 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 1758 runs when it is late
UA 1758 often beats the schedule: 141 of 360 completed flights, 39%, arrived 15 minutes or more early. The 50 late arrivals split 19 under half an hour, 12 between 30 and 60 minutes, and 19 an hour or more.
- 15+ min early141 flights39.2%
- Within 15 min169 flights46.9%
- 15–29 min late19 flights5.3%
- 30–59 min late12 flights3.3%
- 1–2 hours late11 flights3.1%
- 2+ hours late8 flights2.2%
Scale runs 0% to 100%.
Share of 360 completed flights by arrival against schedule.
A late pushback is often recovered here: of 65 departures that left 15 minutes late or more, 31 still arrived on time. 16 flights left on time and still arrived late.
The worst days
Worst days for UA 1758
The latest arrival of the period was on 28 June 2026, 7 hours 43 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 28 June 2026 | 7 hours 43 minutes | Late-arriving aircraft |
| 7 December 2025 | 4 hours 11 minutes | Late-arriving aircraft |
| 14 February 2026 | 4 hours 9 minutes | Carrier |
| 31 December 2025 | 3 hours | Late-arriving aircraft |
| 15 April 2026 | 2 hours 49 minutes | Carrier |
Delay causes
Why UA 1758 runs late
Carrier accounts for 43% of the 3,652 delay minutes carriers reported here, and the remaining four split what is left.
- 43%Carrier
- 33%Late-arriving aircraft
- 19%National Airspace System
- 4%Extreme weather
The largest share of delay minutes, 43%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,587 of the 3,652 delay minutes reported here. The split is drawn from 3,652 delay minutes reported on UA 1758.
Cancellations are rare at 0.82%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
5.3% of arrivals land an hour or more late, close to the national 8.3%, so 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 3,329 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 two other city pairs in the data, including EWR to DEN (77) and SFO to DEN (47), but none flew often enough under UA 1758 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to KOA only.
One caution: this is a thin sample. 365 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 1758
For a booking, UA 1758 has one of the better records a US domestic flight can show: 86.1% on time and 0.82% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- Denver International (DEN) 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.