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DelayAtlas

Carrier route record

UAELP→DEN

United Airlines · El Paso to Denver

Flights
729
Period
September 2025 to August 2026
Share of route
39%
Carriers
3
B+GRADE

Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with United Airlines.

United on ELP to DEN 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 7 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 729 flights, with a median arrival 11 minutes early.

Set against the rest of the country, United's ELP to DEN record is 7 points better than the US average of 77.3%. That gap is worth roughly 73 fewer late arrivals for every thousand flights.

Key figures

On time

84.6%

Arrivals under 15 minutes late, of 722 completed flights

Avg delay

91 min

Across delayed arrivals only, not all flights

Cancelled

0.69%

National rate is 1.89%

Whole route

79.8%

Every carrier on ELP to DEN, 1,871 flights

These figures cover 729 flights between September 2025 and August 2026. The median arrival is 11 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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Carrier by carrier

United against every carrier on ELP to DEN

United flew 729 of the 1,871 flights on ELP to DEN, about 39% of it. Its 84.6% on time is 5 points better than the route as a whole, which runs 79.8%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from United at 84.6% to Frontier at 76.7%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.

Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.

On-time performance by carrier on ELP to DEN
AirlineFlightsOn timeAvg delayCancelledGrade
United Airlines (this page)72984.6%91 min0.69%B+
Southwest Airlines79476.8%64 min0.25%B+
Frontier Airlinesthin sample34876.7%87 min0.29%B+

Flight by flight

United flight numbers on ELP to DEN

Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Departure window

When United runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 15 points, against half a point between the best and worst carrier.

  • 5am–8am365 flights91.9%
  • 8am–11am—
  • 11am–2pm—
  • 2pm–5pm364 flights77.3%
  • 5pm–8pm—
  • 8pm–5am—

Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.

Book the early departure. Flights leaving between 5am–8am arrive on time 91.9% of the time, against 77.3% for the afternoon window. That is 15 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 365 flights scheduled in it.

Across the year

United on ELP to DEN through the year

On-time rate by calendar month90J86F92M95A81M73J81J85A78S81O90N85D
Darker means more delays. Figures are on-time percentages.April best, June worst

June is the worst month at 72.9% on time, 22 points below April, the best at 95.0%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. January was the busiest month here, with 62 flights.

Across the week, Sunday is the strongest day at 91.3% on time and Friday the weakest at 79.4%, a spread of 12 points.

On-time rate by day of the week81.0Mon88.3Tue83.7Wed80.6Thu79.4Fri88.1Sat91.3Sun
Monday: 81.0 percent on time. Tuesday: 88.3 percent on time. Wednesday: 83.7 percent on time. Thursday: 80.6 percent on time. Friday: 79.4 percent on time. Saturday: 88.1 percent on time. Sunday: 91.3 percent on time

Arrival by arrival

How late United on ELP to DEN runs when it is late

United on ELP to DEN often beats the schedule: 254 of 722 completed flights, 35%, arrived 15 minutes or more early. The 111 late arrivals split 34 under half an hour, 28 between 30 and 60 minutes, and 49 an hour or more.

  • 15+ min early254 flights35.2%
  • Within 15 min357 flights49.4%
  • 15–29 min late34 flights4.7%
  • 30–59 min late28 flights3.9%
  • 1–2 hours late26 flights3.6%
  • 2+ hours late23 flights3.2%

Scale runs 0% to 100%.

Share of 722 completed flights by arrival against schedule.

16 of 104 late departures made up the time and arrived on time, 15% of them. 23 flights left on time and still arrived late.

The worst days

Worst days for United on ELP to DEN

The latest arrival of the period was on 9 June 2026, 9 hours 5 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across June, October, August and May, with no single month standing out.

The latest arrivals of United on ELP to DEN in the period
DateArrived late byLargest filed cause
9 June 20269 hours 5 minutesCarrier
12 October 20257 hours 58 minutesCarrier
8 June 20267 hours 34 minutesLate-arriving aircraft
14 August 20266 hours 57 minutesNational Airspace System
30 May 20266 hours 14 minutesLate-arriving aircraft

Delay causes

Why United runs late on this route

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 10,000 reported delay minutes.

  • Carrier
    40%
  • Late-arriving aircraft
    30%
  • National Airspace System
    25%
  • Extreme weather
    5%

The largest share of delay minutes, 40%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,989 of the 10,000 delay minutes reported here. The split is drawn from 10,092 reported delay minutes.

The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 91.9% on time here.

Cancellations are rare at 0.69%, 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 stage length

What a delay here costs

6.8% 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 an hour and a half, which a normal layover absorbs.

The 563 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.

The return leg is a different operation and performs like one: it runs 78.8% on time across 729 flights, 6 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 6 points of difference.

One caution: this is a thin sample. 729 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 United on ELP to DEN

Put together: treat all of this as provisional. 729 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 84.6% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 722 completed flights over 12 months sit behind that.

Related

Where to go next

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.