Carrier route record

UADEN→HDN

United Airlines · Denver to Hayden

Flights: 780
Period: September 2025 to August 2026
Share of route: 54%
Carriers: 3

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

United on DEN to HDN sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 5 points worse than the national rate of 77.3%. The late ones land a little over an hour behind schedule. That rests on 780 flights, with a median arrival 1 minute early.

The national on-time rate over the same period is 77.3%, so United on DEN to HDN runs 5 points behind the country as a whole. Across a thousand flights that is about 54 extra late arrivals.

On time

71.9%

Arrivals under 15 minutes late, of 773 completed flights

Avg delay

76 min

Across delayed arrivals only, not all flights

Cancelled

0.64%

National rate is 1.89%

Whole route

72.9%

Every carrier on DEN to HDN, 1,434 flights

These figures cover 780 flights between September 2025 and August 2026. Beyond the headline rate, 10.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

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Carrier by carrier

United against every carrier on DEN to HDN

United flew 780 of the 1,434 flights on DEN to HDN, most of the route. Its 71.9% on time is about level with the route as a whole at 72.9%. Ranked by on-time rate it is last of three carriers on the route, where the range runs from SkyWest at 77.6% to United at 71.9%. 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 DEN to HDN
Airline	Flights	On time	Avg delay	Cancelled	Grade
SkyWest Airlinesthin sample	215	77.6%	45 min	0.00%	B+
Southwest Airlines	439	72.5%	69 min	0.46%	C+
United Airlines (this page)	780	71.9%	76 min	0.64%	C+

Flight by flight

United flight numbers on DEN to HDN

UA 204511:3073.2% · 310 flights

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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–8am—
8am–11am—
11am–2pm506 flights77.1%
2pm–5pm—
5pm–8pm274 flights62.4%
8pm–5am—

Scale runs 55% to 85%. Rows with fewer than 30 flights show a dash.

The 5pm–8pm window is where this operation falls apart: 62.4% on time, against 77.1% for the 11am–2pm slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 11am–2pm window is the busiest, with 506 flights scheduled in it.

Across the year

United on DEN to HDN through the year

Darker means more delays. Figures are on-time percentages.October best, June worst

June is the worst month at 51.7% on time, 40 points below October, the best at 91.4%. 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 93 flights.

Across the week, Tuesday is the strongest day at 85.3% on time and Friday the weakest at 64.5%, a spread of 21 points.

Arrival by arrival

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

The 217 late arrivals split 75 under half an hour, 62 between 30 and 60 minutes, and 80 an hour or more.

15+ min early106 flights13.7%
Within 15 min450 flights58.2%
15–29 min late75 flights9.7%
30–59 min late62 flights8.0%
1–2 hours late48 flights6.2%
2+ hours late32 flights4.1%

Scale runs 0% to 100%.

Share of 773 completed flights by arrival against schedule.

25 of 193 late departures made up the time and arrived on time, 13% of them. In the other direction, 49 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at HDN.

The worst days

Worst days for United on DEN to HDN

The latest arrival of the period was on 19 December 2025, 13 hours 33 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). On three of the five worst days the largest share was filed as extreme weather.

The latest arrivals of United on DEN to HDN in the period
Date	Arrived late by	Largest filed cause
19 December 2025	13 hours 33 minutes	Carrier
2 April 2026	13 hours 33 minutes	Late-arriving aircraft
22 July 2026	11 hours 37 minutes	Extreme weather
8 June 2026	10 hours 46 minutes	Extreme weather
17 December 2025	10 hours 32 minutes	Extreme weather

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 16,000 reported delay minutes.

Late-arriving aircraft
41%
Carrier
26%
National Airspace System
19%
Extreme weather
14%

Extreme weather accounts for 14% 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 monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.4 times the usual weather exposure. The split is drawn from 16,456 reported delay minutes.

41% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 16,000 reported delay minutes here, that single category outweighs weather by 3 to one.

Cancellations are rare at 0.64%, 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

10.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.

At 141 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 11am–2pm window matters as much as it does.

The return leg is a different operation and performs like one: it runs 83.9% on time across 779 flights, 12 points above 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 12 points of difference.

One caution: this is a thin sample. 780 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 DEN to HDN

Put together: treat all of this as provisional. 780 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 71.9% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 773 completed flights over 12 months sit behind that.

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures