Flight number record
UA 1013
United Airlines · Denver to Los Angeles
- Route
- DEN → LAX
- Departs
- 11:22
- Flights
- 365
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s UA 1013, check with United Airlines.
UA 1013 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 77.6%. When something does go wrong the average delay runs roughly 45 minutes. That rests on 365 flights, with a median arrival 5 minutes early.
Set against the rest of the country, UA 1013's record is 9 points better than the US average of 77.6%. That gap is worth roughly 87 fewer late arrivals for every thousand flights.
Key figures
On time
86.3%
Arrivals under 15 minutes late, of 365 completed flights
Avg delay
47 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.81%
1 hour+ late
2.5%
National rate is 8.1%
These figures cover 365 flights between July 2025 and June 2026. The median arrival is 5 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 1013 flies
UA 1013 flies DEN to LAX without a single fixed slot. Its most common scheduled departure was 11:22, used on 77 of 365 flights, with 11:28 (68 flights) and 11:16 (49 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 11:2277 flights21.1%
- Departs 11:2868 flights18.6%
- Departs 11:1649 flights13.4%
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 11:22 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and UA 1013 runs 8 points better at 86.3%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
UA 1013 next to DEN to LAX
Every carrier on DEN to LAX combined arrived on time 79.0% of the time across 7,721 flights, so UA 1013 is 7 points ahead of it. United flew 3,064 flights on the same city pair under all its flight numbers, including this one, and those ran 84.5% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 7 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1013 | 365 | 86.3% | 47 min | 0.00% | A+ |
| All United Airlines on DEN–LAX | 3,064 | 84.5% | 58 min | 0.00% | B+ |
| All carriers on DEN–LAX | 7,721 | 79.0% | 62 min | 0.51% | B+ |
| United Airlines, whole network | 821,041 | 79.0% | 72 min | 1.01% | B |
Across the year
UA 1013 quarter by quarter
UA 1013 did not run the same all year. Its best quarter was Jan–Mar 2026 at 91.1% on time and its weakest Apr–Jun 2026 at 76.9%, a swing of 14 points on roughly 91 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 202592 flights89.1%
- Oct–Dec 202592 flights88.0%
- Jan–Mar 202690 flights91.1%
- Apr–Jun 202691 flights76.9%
Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, UA 1013 ranged from 80.8% on Friday to 92.5% on Tuesday. 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 1013 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 2,368 reported delay minutes.
- 31%National Airspace System
- 29%Carrier
- 28%Late-arriving aircraft
- 12%Extreme weather
Extreme weather accounts for 12% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.0 times the usual weather exposure. The split is drawn from 2,368 delay minutes reported on UA 1013.
Cancellations are rare at 0.00%, below the national 1.81% and low enough to earn the plus on the grade. Almost no flights are 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 2.5% 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 862 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.
Every one of the 365 flights under UA 1013 in the data flew DEN to LAX. 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. 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 1013
For a booking, UA 1013 has one of the better records a US domestic flight can show: 86.3% on time and 0.00% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- DEN to LAX, every carrier and departure
- LAX to DEN, the return direction
- United Airlines 1638 on the same route91.2%
- United Airlines 405 on the same route91.0%
- United Airlines 2240 on the same route75.9%
- Frontier Airlines 4345 on the same route71.3%
- Frontier Airlines 2341 on the same route89.3%
- United Airlines 531 on the same route80.1%
- Denver International (DEN) delay statistics
- Los Angeles International (LAX) 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.