Flight profile · United Airlines

UA456

Denver (DEN) to Austin (AUS) · scheduled 8:05 AM – 11:33 AM

FlyerIntel does not track flights in the air. This page describes how UA456 has historically performed, which is a different and more useful question when you are deciding what to book. For today’s status, check with United Airlines.

How UA456 performs

785 operations, 2023-07-05 to 2026-06-30.

On-time arrivals
91.3%
713 of 781 completed
Cancellation rate
0.25%
2 cancelled
Median arrival delay
-11 min
Average -5.9 min
Severe delays
2.7%
Arrived 60+ minutes late
Delay when late
51 min
Average, when 15+ min late
Departure punctuality
94.3%
Left the gate on time

UA456 arrived on time 91.3% of the time, against 76.5% for all DENAUS flights — this specific departure is 14.8 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 12.1 points better.

Source: US DOT Bureau of Transportation Statistics · 785 operations between 2023-07-05 to 2026-06-30

Against the rest of the route

On timeCancelledMedian delaySevereFlights
UA45691.3%0.25%-11 min2.7%785
United Airlines on DENAUS79.2%0.58%-6 min7.2%5,530
All DENAUS flights76.5%0.66%-4 min7.2%14,612

Source: FlyerIntel analysis of US DOT BTS data · 2023-07-05 to 2026-06-30

Other routes UA456 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.

RouteOperatedFlightsOn time
AUSORD Austin to Chicago2026-03-052026-06-3011366.4%
ORDDCA Chicago to Washington2026-05-212026-06-3017
ORDCID Chicago to Cedar Rapids2026-06-012026-06-2321
LAXCLE Los Angeles to Cleveland2026-02-142026-02-283
SFODFW San Francisco to Dallas–Fort Worth2026-01-102026-02-075
IADBZN Washington to Bozeman2025-12-202026-01-033
OMAIAH Omaha to Houston2025-09-272025-10-255
PNSDEN Pensacola to Denver2025-08-232025-08-302
AUSEWR Austin to Newark2023-07-012025-05-2110256.1%
EWRSFO Newark to San Francisco2025-03-292025-03-291
SANSFO San Diego to San Francisco2024-12-032025-01-0633
SFOORD San Francisco to Chicago2024-12-032024-12-1816
RNOORD Reno to Chicago2024-11-292024-11-302
OMADEN Omaha to Denver2024-07-052024-07-051
DTWORD Detroit to Chicago2024-02-152024-03-0618
EWRCVG Newark to Cincinnati / Covington2024-02-172024-03-023
FLLIAD Fort Lauderdale to Washington2024-01-112024-02-1218
DENMIA Denver to Miami2023-12-212024-01-0819
MIAEWR Miami to Newark2023-12-212024-01-0818
IADCLE Washington to Cleveland2023-12-202023-12-201
ORDLAS Chicago to Las Vegas2023-11-152023-11-151
EWRBOS Newark to Boston2023-10-282023-10-281
IAHMKE Houston to Milwaukee2023-09-092023-09-233
RNOIAH Reno to Houston2023-08-052023-09-0310
EWRCHS Newark to Charleston2023-07-092023-07-304

Because the same number has served different journeys, the statistics above describe only the route UA456 currently operates. Blending them would produce an average of two different flights.

Data and methodology

Calculated by FlyerIntel from 785 records of UA456 operating DENAUS, 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.

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