Flight number record
UA 2447
United Airlines · Austin to Denver
- Route
- AUS → DEN
- Departs
- 14:55
- Flights
- 363
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s UA 2447, check with United Airlines.
UA 2447 lands a B, about a point better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 363 flights, with a median arrival 7 minutes early.
Key figures
On time
78.8%
Arrivals under 15 minutes late, of 353 completed flights
Avg delay
74 min
Across delayed arrivals only, not all flights
Cancelled
1.65%
National rate is 1.81%
1 hour+ late
8.8%
National rate is 8.1%
These figures cover 363 flights between July 2025 and June 2026. Beyond the headline rate, 8.8% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Schedule
When UA 2447 flies
UA 2447 flies AUS to DEN without a single fixed slot. Its most common scheduled departure was 14:55, used on 67 of 363 flights, with 14:45 (41 flights) and 16:51 (38 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 14:5567 flights18.5%
- Departs 14:4541 flights11.3%
- Departs 16:5138 flights10.5%
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 14:55 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and UA 2447 runs 6 points better at 78.8%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
UA 2447 next to AUS to DEN
Every carrier on AUS to DEN combined arrived on time 78.4% of the time across 5,310 flights, so UA 2447 is about level with it. United flew 1,915 flights on the same city pair under all its flight numbers, including this one, and those ran 82.7% on time. Across its whole network United Airlines managed 79.0%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 2447thin sample | 363 | 78.8% | 74 min | 1.65% | B |
| All United Airlines on AUS–DEN | 1,915 | 82.7% | 69 min | 1.20% | B |
| All carriers on AUS–DEN | 5,310 | 78.4% | 63 min | 0.81% | B+ |
| United Airlines, whole network | 821,041 | 79.0% | 72 min | 1.01% | B |
Across the year
UA 2447 quarter by quarter
UA 2447 did not run the same all year. Its best quarter was Apr–Jun 2026 at 84.4% on time and its weakest Jul–Sep 2025 at 65.1%, a swing of 19 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 flights65.1%
- Oct–Dec 202590 flights82.2%
- Jan–Mar 202690 flights82.8%
- Apr–Jun 202691 flights84.4%
Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, UA 2447 did best on Monday at 88.0% on time and worst on Sunday at 66.7%. Each day rests on about 52 flights, so a gap of 21 points is worth noticing but could still narrow in another year.
Delay causes
Why UA 2447 runs late
One category carries most of the weight here. Late-arriving aircraft accounts for 49% of the 5,537 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 49%Late-arriving aircraft
- 38%National Airspace System
- 11%Carrier
- 2%Extreme weather
49% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 5,537 reported delay minutes here, that single category outweighs weather by 22 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 5,537 delay minutes reported on UA 2447.
Cancellations sit at 1.65% against a national 1.81%, which is ordinary. Diversions add another 1.10%.
Connections and routes
What a delay on this flight costs
8.8% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
The 775 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 two other city pairs in the data, including IAD to AUS (10) and IAH to MSY (1), but none flew often enough under UA 2447 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to AUS to DEN only.
One caution: this is a thin sample. 363 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 2447
For a booking, read UA 2447 as 78.8% on time with 1.65% cancelled over 363 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- AUS to DEN, every carrier and departure
- DEN to AUS, the return direction
- Frontier Airlines 1815 on the same route86.2%
- United Airlines 595 on the same route86.7%
- Austin-Bergstrom International (AUS) delay statistics
- 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.