Flight number record
UA 526
United Airlines · Denver to Las Vegas
- Route
- DEN → LAS
- Departs
- 11:45
- Flights
- 334
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s UA 526, check with United Airlines.
UA 526 lands a B+, 4 points better than the national rate of 77.6%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by about 50 minutes on average. That is a workable record, not a spotless one. That rests on 334 flights, with a median arrival 3 minutes early.
Set against the rest of the country, UA 526's record is 4 points better than the US average of 77.6%. That gap is worth roughly 41 fewer late arrivals for every thousand flights.
Key figures
On time
81.7%
Arrivals under 15 minutes late, of 333 completed flights
Avg delay
50 min
Across delayed arrivals only, not all flights
Cancelled
0.30%
National rate is 1.81%
1 hour+ late
4.8%
National rate is 8.1%
These figures cover 334 flights between July 2025 and June 2026. The median arrival is 3 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 526 flies
UA 526 flies DEN to LAS without a single fixed slot. Its most common scheduled departure was 11:45, used on 61 of 334 flights, with 11:50 (53 flights) and 11:24 (49 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 11:4561 flights18.3%
- Departs 11:5053 flights15.9%
- Departs 11:2449 flights14.7%
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 11:45 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and UA 526 runs 3 points better at 81.7%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
UA 526 next to DEN to LAS
Every carrier on DEN to LAS combined arrived on time 75.3% of the time across 7,108 flights, so UA 526 is 6 points ahead of it. United flew 2,420 flights on the same city pair under all its flight numbers, including this one, and those ran 78.6% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 3 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 526thin sample | 334 | 81.7% | 50 min | 0.30% | B+ |
| All United Airlines on DEN–LAS | 2,420 | 78.6% | 66 min | 0.37% | B+ |
| All carriers on DEN–LAS | 7,108 | 75.3% | 63 min | 0.66% | B+ |
| United Airlines, whole network | 821,041 | 79.0% | 72 min | 1.01% | B |
Across the year
UA 526 quarter by quarter
Quarter by quarter UA 526 held fairly steady: 85.7% in Jul–Sep 2025, 78.7% in Oct–Dec 2025, 82.2% in Jan–Mar 2026 and 79.1% in Apr–Jun 2026. A spread of 7 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202592 flights85.7%
- Oct–Dec 202561 flights78.7%
- Jan–Mar 202690 flights82.2%
- Apr–Jun 202691 flights79.1%
Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, UA 526 did best on Monday at 89.4% on time and worst on Thursday at 75.0%. Each day rests on about 48 flights, so a gap of 14 points is worth noticing but could still narrow in another year.
Delay causes
Why UA 526 runs late
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 3,039 reported delay minutes.
- 38%National Airspace System
- 37%Carrier
- 25%Late-arriving aircraft
The largest share of delay minutes, 37%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 1,123 of the 3,039 delay minutes reported here. The split is drawn from 3,039 delay minutes reported on UA 526.
Cancellations are rare at 0.30%, 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
Badly late arrivals are rare here: only 4.8% land an hour or more behind schedule, against 8.1% 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 628 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The same number turns up on six other city pairs in the data, including LAS to EWR (162), SFO to DEN (31) and ORF to DEN (16), but none flew often enough under UA 526 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to LAS only.
One caution: this is a thin sample. 334 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 526
For a booking, read UA 526 as 81.7% on time with 0.30% cancelled over 334 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- DEN to LAS, every carrier and departure
- LAS to DEN, the return direction
- United Airlines 655 on the same route68.4%
- Frontier Airlines 777 on the same route73.5%
- United Airlines 2316 on the same route93.8%
- Frontier Airlines 1993 on the same route78.0%
- Frontier Airlines 2015 on the same route90.0%
- Denver International (DEN) delay statistics
- Harry Reid International (LAS) 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
- Worst months to fly in the US, ranked by the data
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.