Flight profile · United Airlines
UA779
Austin (AUS) to Denver (DEN) · scheduled 11:05 AM – 12:26 PM
How UA779 performs
771 operations, January 2024 – July 2026.
UA779 arrived on time 89.5% of the time, against 79.9% for all AUS → DEN flights, so this departure is 9.6 percentage points better than the route as a whole. Against United Airlines’ own flights on this route it is 6.1 points better.
Source: US DOT Bureau of Transportation Statistics · 771 operations, January 2024 – July 2026 · If UA779 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.
Where UA779 is right now
A live reading, only if you ask for it. It is not part of the reliability record above.
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Against the rest of the route
| Flight or route | On time | Cancelled | Median delay | Severe | Flights |
|---|---|---|---|---|---|
| UA779 | 89.5% | 0.65% | -13 min | 3.0% | 771 |
| United Airlines on AUS → DEN | 83.4% | 0.93% | -9 min | 6.0% | 5,711 |
| All AUS → DEN flights | 79.9% | 0.78% | -7 min | 6.6% | 15,176 |
Source: FlyerIntel analysis of US DOT BTS data · January 2024 – July 2026
Why UA779 runs late
Where US DOT attributed the delay minutes on this flight.
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
crew, maintenance, boarding and fueling, all within the carrier’s control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for UA779 on AUS → DEN. Only delays of 15 minutes or more are attributed.
Source: US DOT Bureau of Transportation Statistics · Data covering January 2024 – July 2026
Does a late aircraft delay this flight?
How often the plane that flies UA779 comes in late, and what that does to the departure.
The aircraft flying UA779 came in 15 or more minutes late on 15% of the departures where its previous flight is known. There are not enough departures in both groups to say how the flight left after a late one and after an on-time one.
Each departure is matched to the flight the same aircraft flew into AUS just before it, using the tail number in the DOT file, 543 of 767 departures in all. A departure is left out when that flight is unknown, was cancelled or diverted, or the aircraft had sat for more than 12 hours. A flight the airline cancelled never left and is not in the count, and one flown by a substitute aircraft is matched to the aircraft that flew it, not to the one first planned.
Against the network at the same turn length
| Share of departures | Inbound landed 15+ late |
|---|---|
| UA779 | 15% |
| Network, same turn | 17% |
The schedule leaves a normal turn: enough time to clean and board if the aircraft is on time, little to spare if it is not.
The network row is every flight with a scheduled turn of 60 to 89 minutes. How often UA779’s aircraft landed 15 or more minutes late is about the same as the network’s. There are not enough departures in both groups to compare how it left.
More: Which Flight Numbers Pay for a Late Aircraft lists the flight numbers that pass a late aircraft on.
Source: US DOT Bureau of Transportation Statistics · Data covering January 2024 – July 2026
From pushback to gate
When it leaves AUS late, does that still matter by the time it reaches DEN?
UA779 pushes back an average of 3.1 minutes late and reaches the gate at DEN an average of 5.0 minutes early. The 8.1 minutes between those two figures are slack the published schedule already carries, which is why a late pushback on this flight does not reliably become a late arrival. It spends 16.4 minutes on the taxiways at AUS, 1.7 minutes longer than a typical AUS departure in the same hour.
On arrival at DEN, UA779 spends 8.3 min taxiing from touchdown to the gate — ground time a connecting passenger sits through before they can even leave the aircraft, on top of however late the flight itself ran. That is 1.5 minutes shorter than a typical DEN arrival (9.8 min).
Departure delay is averaged over every pushback and arrival delay over every completed arrival, so the two counts differ by the flights that never reached DEN. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 13,262 departures from AUS scheduled in the clock hour UA779 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at DEN (963,027 flights), not just UA779’s own. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · January 2024 – July 2026
The hour it leaves AUS
Part of any flight’s record belongs to the clock rather than to the flight. UA779 has one departure time, so this is what that time is worth.
On-time arrival rate. 13,262 departures from AUS are scheduled in the 11 AM–12 PM hour over the period, against 272,521 across the whole day.
UA779 is scheduled out of AUS at 11:05 AM, in the 11 AM–12 PM bank. Departures from AUS in that hour arrive on time 83.5% of the time against 78.0% across the airport’s whole day — the slot alone is worth 5.6 points better before anything about this particular flight is considered.
The two airport figures cover every departure from AUS to every destination, so they describe the slot rather than this journey — the like-for-like comparison against the route is above. Hours are scheduled local, and a number whose schedule moved between banks inside the period has no single hour and is not described here at all. Why the hour matters.
Source: FlyerIntel analysis of US DOT BTS data · January 2024 – July 2026 · Hours below 120 departures are not scored.
Other routes UA779 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| DEN→BOS Denver to Boston | March 30, 2026 – June 24, 2026 | 82 | — |
| IAH→RDU Houston to Raleigh–Durham | May 2–16, 2026 | 3 | — |
| ORD→ALB Chicago to Albany | April 4–11, 2026 | 2 | — |
| IAH→AUS Houston to Austin | June 27, 2024 – February 11, 2026 | 113 | 87.5% |
| SYR→DEN Syracuse to Denver | February 4, 2026 | 1 | — |
| DEN→SAN Denver to San Diego | December 18, 2025 – January 5, 2026 | 19 | — |
| DEN→SLC Denver to Salt Lake City | August 1–18, 2025 | 15 | — |
| DEN→ECP Denver to Panama City Beach | August 2–16, 2025 | 3 | — |
| RDU→DEN Raleigh–Durham to Denver | August 2–16, 2025 | 3 | — |
| CLE→IAD Cleveland to Washington | June 28, 2025 – July 26, 2025 | 4 | — |
| TPA→ORD Tampa to Chicago | May 24–31, 2025 | 2 | — |
| ATL→IAH Atlanta to Houston | April 5–26, 2025 | 4 | — |
| DEN→MCO Denver to Orlando | March 30–31, 2025 | 2 | — |
| RSW→DEN Fort Myers to Denver | March 22–29, 2025 | 2 | — |
| EWR→SYR Newark to Syracuse | December 19, 2024 – January 6, 2025 | 17 | — |
| EWR→DEN Newark to Denver | September 1, 2024 | 1 | — |
| DEN→SEA Denver to Seattle | June 27–30, 2024 | 3 | — |
| IAH→SLC Houston to Salt Lake City | December 21, 2023 – January 8, 2024 | 19 | — |
| SLC→EWR Salt Lake City to Newark | December 21, 2023 – January 8, 2024 | 19 | — |
| FLL→ORD Fort Lauderdale to Chicago | November 28, 2023 – December 20, 2023 | 23 | — |
| MCI→IAH Kansas City to Houston | October 29, 2023 – November 27, 2023 | 30 | — |
| SLC→IAH Salt Lake City to Houston | September 29, 2023 – October 28, 2023 | 30 | — |
| DEN→COS Denver to Colorado Springs | September 5–28, 2023 | 24 | — |
| BZN→LAX Bozeman to Los Angeles | July 1, 2023 – September 4, 2023 | 66 | — |
Because the same number has served different journeys, the statistics above describe only the route UA779 currently operates. Blending them would produce an average of two different flights.
When it goes wrong
The average describes a usual day. This is the day that ruins a connection.
15 min late
against a median of 13 min early
Percentiles over 771 operations; cancelled and diverted flights are counted separately.
Source: US DOT Bureau of Transportation Statistics · Data covering January 2024 – July 2026
Other flights on this route
Same airports, same journey, different odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| UA779 this flight | United Airlines | 89.5% | 13 min early | 771 |
| UA595 | United Airlines | 86.3% | 5 min early | 999 |
| F91815 | Frontier Airlines | 84.0% | 8 min early | 738 |
| UA2447 | United Airlines | 76.3% | 4 min early | 915 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. UA779 is placed in the same ordering rather than left out of it; the rows around it are the most punctual departures on the route, not all of them, so this is a comparison and not a rank. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 771 records of UA779 operating AUS → DEN, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.
Full methodology · Data sources · Report a problem
Related research: Most and Least Reliable Flight Numbers · The Delay You Inherit · Making Up Time in the Air
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