Flight number record

UA 1758

United Airlines · Denver to Kailua-Kona

Route: DEN → KOA
Departs: 12:20
Flights: 365
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 1758, check with United Airlines.

UA 1758 earns a B+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 6 points better than the national rate of 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 365 flights, with a median arrival 8 minutes early.

Set against the rest of the country, UA 1758's record is 6 points better than the US average of 77.6%. That gap is worth roughly 64 fewer late arrivals for every thousand flights.

On time

84.0%

Arrivals under 15 minutes late, of 362 completed flights

Avg delay

74 min

Across delayed arrivals only, not all flights

Cancelled

0.55%

National rate is 1.81%

1 hour+ late

6.6%

National rate is 8.1%

These figures cover 365 flights between July 2025 and June 2026. The median arrival is 8 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.

Schedule

When UA 1758 flies

UA 1758 flies DEN to KOA without a single fixed slot. Its most common scheduled departure was 12:20, used on 117 of 365 flights, with 12:00 (98 flights) and 12:15 (94 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 12:20117 flights32.1%
Departs 12:0098 flights26.8%
Departs 12:1594 flights25.8%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 12:20 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and UA 1758 runs 5 points better at 84.0%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

UA 1758 next to DEN to KOA

Every carrier on DEN to KOA combined arrived on time 83.3% of the time across 370 flights, so UA 1758 is about level with it. Across its whole network United Airlines managed 79.0%, which this flight beats by 5 points.

UA 1758 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 1758	365	84.0%	74 min	0.55%	B+
All United Airlines on DEN–KOA	370	83.3%	76 min	0.81%	B+
All carriers on DEN–KOA	370	83.3%	76 min	0.81%	B+
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 1758 quarter by quarter

Quarter by quarter UA 1758 held fairly steady: 81.5% in Jul–Sep 2025, 85.9% in Oct–Dec 2025, 83.9% in Jan–Mar 2026 and 84.6% in Apr–Jun 2026. A spread of 4 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights81.5%
Oct–Dec 202592 flights85.9%
Jan–Mar 202690 flights83.9%
Apr–Jun 202691 flights84.6%

Scale runs 75% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, UA 1758 ranged from 76.9% on Wednesday to 88.5% on Monday. 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.

Delay causes

Why UA 1758 runs late

One category carries most of the weight here. Carrier accounts for 43% of the 4,272 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Carrier
43%
Late-arriving aircraft
35%
National Airspace System
18%
Extreme weather
4%

35% 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 4,272 reported delay minutes here, that single category outweighs weather by 10 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 4,272 delay minutes reported on UA 1758.

Cancellations are rare at 0.55%, below the national 1.81% 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

6.6% 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 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 four other city pairs in the data, including EWR to DEN (56), MCO to DEN (31) and ORF to DEN (18), 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, read UA 1758 as 84.0% on time with 0.55% cancelled over 365 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures