Flight number record
UA 2447
United Airlines · Austin to Denver
- Route
- AUS → DEN
- Departs
- 14:45
- Flights
- 363
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 2447, check with United Airlines.
UA 2447 lands a B, 5 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 363 flights, with a median arrival 9 minutes early.
Set against the rest of the country, UA 2447's record is 5 points better than the US average of 77.3%. That gap is worth roughly 49 fewer late arrivals for every thousand flights.
Key figures
On time
82.2%
Arrivals under 15 minutes late, of 353 completed flights
Avg delay
68 min
Across delayed arrivals only, not all flights
Cancelled
1.10%
National rate is 1.89%
1 hour+ late
7.1%
National rate is 8.3%
These figures cover 363 flights between September 2025 and August 2026. The median arrival is 9 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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Schedule
When UA 2447 flies
UA 2447 flies AUS to DEN without a single fixed slot. Its most common scheduled departure was 14:45, used on 81 of 363 flights, with 16:51 (38 flights) next.
- Departs 14:4581 flights22.3%
- Departs 16:5138 flights10.5%
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 14:45 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and UA 2447 runs 10 points better at 82.2%. 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 2447 next to AUS to DEN
Every carrier on AUS to DEN combined arrived on time 78.9% of the time across 5,509 flights, so UA 2447 is 3 points ahead of it. United flew 1,885 flights on the same city pair under all its flight numbers, including this one, and those ran 85.7% on time. Across its whole network United Airlines managed 78.8%, which this flight beats by 3 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 2447thin sample | 363 | 82.2% | 68 min | 1.10% | B |
| All United Airlines on AUS–DEN | 1,885 | 85.7% | 72 min | 0.69% | A+ |
| All carriers on AUS–DEN | 5,509 | 78.9% | 63 min | 0.64% | B+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | 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 73.3%, a swing of 11 points on roughly 73 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 202530 flights73.3%
- Oct–Dec 202590 flights82.2%
- Jan–Mar 202690 flights82.8%
- Apr–Jun 202691 flights84.4%
- Jul–Sep 202662 flights82.1%
Scale runs 65% to 90%.
By weekday, UA 2447 did best on Tuesday at 90.2% on time and worst on Sunday at 68.6%. Each day rests on about 52 flights, so a gap of 22 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 2447 runs when it is late
UA 2447 often beats the schedule: 121 of 353 completed flights, 34%, arrived 15 minutes or more early. The 63 late arrivals split 23 under half an hour, 15 between 30 and 60 minutes, and 25 an hour or more.
- 15+ min early121 flights34.3%
- Within 15 min169 flights47.9%
- 15–29 min late23 flights6.5%
- 30–59 min late15 flights4.2%
- 1–2 hours late16 flights4.5%
- 2+ hours late9 flights2.5%
Scale runs 0% to 100%.
Share of 353 completed flights by arrival against schedule.
12 of 53 late departures made up the time and arrived on time, 23% of them. In the other direction, 22 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 DEN.
The worst days
Worst days for UA 2447
The latest arrival of the period was on 7 December 2025, 5 hours 3 minutes 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 |
|---|---|---|
| 7 December 2025 | 5 hours 3 minutes | Late-arriving aircraft |
| 13 August 2026 | 3 hours 54 minutes | Extreme weather |
| 7 September 2025 | 3 hours 50 minutes | Carrier |
| 21 June 2026 | 3 hours 11 minutes | Late-arriving aircraft |
| 19 December 2025 | 2 hours 53 minutes | Late-arriving aircraft |
Delay causes
Why UA 2447 runs late
National Airspace System accounts for 46% of the 4,273 delay minutes carriers reported here, and the remaining four split what is left.
- 46%National Airspace System
- 40%Late-arriving aircraft
- 9%Carrier
- 4%Extreme weather
40% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 4,273 reported delay minutes here, that single category outweighs weather by 9 to one. The split is drawn from 4,273 delay minutes reported on UA 2447.
Cancellations sit at 1.10% against a national 1.89%, which is ordinary. Diversions add another 1.65%.
Connections and routes
What a delay on this flight costs
7.1% 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 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.
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 82.2% on time with 1.10% 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 route88.2%
- United Airlines 595 on the same route89.0%
- United Airlines 779 on the same route92.8%
- 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.