Flight number record
UA 2045
United Airlines · Denver to Hayden
- Route
- DEN → HDN
- Departs
- 11:30
- Flights
- 310
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 2045, check with United Airlines.
UA 2045 sits in the middle of the pack with a C+. Close to three flights in four arrive on time by the DOT's definition, 4 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 310 flights, with a median arrival right on schedule.
The national on-time rate over the same period is 77.3%, so UA 2045 runs 4 points behind the country as a whole. Across a thousand flights that is about 41 extra late arrivals.
Key figures
On time
73.2%
Arrivals under 15 minutes late, of 310 completed flights
Avg delay
58 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
1 hour+ late
8.1%
National rate is 8.3%
These figures cover 310 flights between September 2025 and August 2026. Beyond the headline rate, 8.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When UA 2045 flies
UA 2045 flies DEN to HDN without a single fixed slot. Its most common scheduled departure was 11:30, used on 97 of 310 flights, with 11:24 (47 flights) and 11:26 (37 flights) next.
- Departs 11:3097 flights31.3%
- Departs 11:2447 flights15.2%
- Departs 11:2637 flights11.9%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 11:30 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and UA 2045 runs 5 points worse at 73.2%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
UA 2045 next to DEN to HDN
Every carrier on DEN to HDN combined arrived on time 72.9% of the time across 1,434 flights, so UA 2045 is about level with it. United flew 780 flights on the same city pair under all its flight numbers, including this one, and those ran 71.9% on time. Across its whole network United Airlines managed 78.8%, which this flight trails by 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 2045thin sample | 310 | 73.2% | 58 min | 0.00% | C+ |
| All United Airlines on DEN–HDN | 780 | 71.9% | 76 min | 0.64% | C+ |
| All carriers on DEN–HDN | 1,434 | 72.9% | 70 min | 0.49% | C+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 2045 quarter by quarter
UA 2045 did not run the same all year. Its best quarter was Jul–Sep 2026 at 83.9% on time and its weakest Jan–Mar 2026 at 58.9%, a swing of 25 points on roughly 78 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.
- Oct–Dec 202567 flights79.1%
- Jan–Mar 202690 flights58.9%
- Apr–Jun 202691 flights75.8%
- Jul–Sep 202662 flights83.9%
Scale runs 50% to 90%.
By weekday, UA 2045 did best on Tuesday at 86.4% on time and worst on Friday at 61.4%. Each day rests on about 44 flights, so a gap of 25 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 2045 runs when it is late
The 83 late arrivals split 35 under half an hour, 23 between 30 and 60 minutes, and 25 an hour or more.
- 15+ min early32 flights10.3%
- Within 15 min195 flights62.9%
- 15–29 min late35 flights11.3%
- 30–59 min late23 flights7.4%
- 1–2 hours late17 flights5.5%
- 2+ hours late8 flights2.6%
Scale runs 0% to 100%.
Share of 310 completed flights by arrival against schedule.
13 of 64 late departures made up the time and arrived on time, 20% of them. In the other direction, 32 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 UA 2045
The latest arrival of the period was on 27 December 2025, 8 hours 1 minute behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 27 December 2025 | 8 hours 1 minute | Late-arriving aircraft |
| 30 November 2025 | 4 hours 41 minutes | Late-arriving aircraft |
| 20 February 2026 | 4 hours 7 minutes | Late-arriving aircraft |
| 6 March 2026 | 3 hours 19 minutes | Carrier |
| 19 February 2026 | 2 hours 55 minutes | Extreme weather |
Delay causes
Why UA 2045 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 4,825 reported delay minutes.
- 38%Late-arriving aircraft
- 32%National Airspace System
- 20%Carrier
- 10%Extreme weather
38% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 4,825 reported delay minutes here, that single category outweighs weather by 4 to one. The split is drawn from 4,825 delay minutes reported on UA 2045.
Cancellations are rare at 0.00%, below the national 1.89% 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
8.1% 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 about an hour, which a normal layover absorbs.
The same number turns up on four other city pairs in the data, including MIA to DEN (159), MSO to DEN (103) and IAH to IAD (23), but none flew often enough under UA 2045 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DEN to HDN only.
One caution: this is a thin sample. 310 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 2045
For a booking, read UA 2045 as 73.2% on time with 0.00% cancelled over 310 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- DEN to HDN, every carrier and departure
- HDN to DEN, the return direction
- Denver International (DEN) 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
- Why the first flight of the morning is statistically safest
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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.