Flight profile · United Airlines

UA459

Portland (PDX) to Denver (DEN) · scheduled 5:00 AM – 8:34 AM

FlyerIntel does not track flights in the air. This page describes how UA459 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 UA459 performs

767 operations, 2024-03-31 to 2026-06-30.

On-time arrivals
96.3%
734 of 762 completed
Cancellation rate
0.52%
4 cancelled
Median arrival delay
-14 min
Average -8.9 min
Severe delays
1.6%
Arrived 60+ minutes late
Delay when late
113 min
Average, when 15+ min late
Departure punctuality
96.3%
Left the gate on time

UA459 arrived on time 96.3% of the time, against 82.7% for all PDXDEN flights — this specific departure is 13.6 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 7.1 points better.

Source: US DOT Bureau of Transportation Statistics · 767 operations between 2024-03-31 to 2026-06-30

Against the rest of the route

On timeCancelledMedian delaySevereFlights
UA45996.3%0.52%-14 min1.6%767
United Airlines on PDXDEN89.2%0.76%-12 min3.9%5,544
All PDXDEN flights82.7%0.67%-6 min4.9%13,311

Source: FlyerIntel analysis of US DOT BTS data · 2024-03-31 to 2026-06-30

Other routes UA459 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
BTVIAD Burlington to Washington2026-03-292026-03-291
MAFIAH Midland to Houston2026-02-042026-02-041
DAYORD Dayton to Chicago2025-11-282025-11-281
PDXORD Portland to Chicago2025-06-252025-06-251
CLTORD Charlotte to Chicago2025-03-062025-03-2924
DENMSP Denver to Minneapolis2023-07-012025-02-1248484.6%
MSPIAH Minneapolis to Houston2024-03-312024-05-0128
SBADEN Santa Barbara to Denver2024-03-072024-03-3024
RNODEN Reno to Denver2023-07-012024-02-1414692.5%
DENSTL Denver to St. Louis2023-12-212024-01-0718
LAXPHX Los Angeles to Phoenix2023-11-042023-11-041

Because the same number has served different journeys, the statistics above describe only the route UA459 currently operates. Blending them would produce an average of two different flights.

Data and methodology

Calculated by FlyerIntel from 767 records of UA459 operating PDXDEN, 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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