Flight profile · United Airlines
UA1604
Denver (DEN) to Reno (RNO) · scheduled 3:55 PM – 5:43 PM
How UA1604 performs
555 operations, 2024-08-19 to 2026-06-30.
UA1604 arrived on time 83.9% of the time, against 75.6% for all DEN → RNO flights — this specific departure is 8.3 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 6.0 points better.
Source: US DOT Bureau of Transportation Statistics · 555 operations between 2024-08-19 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1604 | 83.9% | 0.18% | -7 min | 6.3% | 555 |
| United Airlines on DEN → RNO | 77.9% | 0.46% | -6 min | 8.4% | 4,103 |
| All DEN → RNO flights | 75.6% | 0.56% | -4 min | 7.8% | 7,508 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-08-19 to 2026-06-30
Other routes UA1604 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 |
|---|---|---|---|
| SFO→DEN San Francisco to Denver | 2026-03-05 – 2026-06-30 | 117 | 69.0% |
| SNA→SFO Santa Ana to San Francisco | 2026-05-21 – 2026-06-30 | 41 | — |
| RDU→SFO Raleigh–Durham to San Francisco | 2026-03-29 – 2026-05-20 | 53 | — |
| TPA→SFO Tampa to San Francisco | 2026-03-05 – 2026-03-28 | 24 | — |
| MSP→DEN Minneapolis to Denver | 2025-03-06 – 2025-09-24 | 170 | 85.2% |
| RNO→SFO Reno to San Francisco | 2025-08-01 – 2025-08-18 | 13 | — |
| IAH→MSP Houston to Minneapolis | 2025-05-22 – 2025-06-25 | 28 | — |
| IAH→XNA Houston to Fayetteville/Springdale/Rogers | 2025-06-02 – 2025-06-02 | 1 | — |
| IAH→EWR Houston to Newark | 2025-03-30 – 2025-04-30 | 32 | — |
| LAS→IAH Las Vegas to Houston | 2025-04-01 – 2025-04-30 | 30 | — |
| HNL→SFO Honolulu to San Francisco | 2023-09-09 – 2024-10-26 | 22 | — |
| DCA→IAH Washington to Houston | 2024-09-26 – 2024-10-25 | 26 | — |
| DEN→ICT Denver to Wichita | 2024-08-01 – 2024-08-18 | 18 | — |
| IAH→DCA Houston to Washington | 2023-07-03 – 2024-07-31 | 235 | 71.9% |
| MSY→IAH New Orleans to Houston | 2024-02-15 – 2024-03-06 | 18 | — |
| DEN→AUS Denver to Austin | 2024-01-08 – 2024-01-08 | 1 | — |
| ORD→CMH Chicago to Columbus | 2023-12-21 – 2023-12-21 | 1 | — |
| IAH→ORD Houston to Chicago | 2023-10-01 – 2023-10-27 | 24 | — |
| DCA→ORD Washington to Chicago | 2023-09-05 – 2023-09-28 | 21 | — |
Because the same number has served different journeys, the statistics above describe only the route UA1604 currently operates. Blending them would produce an average of two different flights.
Why UA1604 runs late
Where US DOT attributed the delay minutes on this flight.
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding, fuelling — within the carrier’s control
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for UA1604 on DEN → RNO. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Other departures on DEN → RNO
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| UA2167 | United Airlines | 84.3% | 7 min early | 850 |
| UA719 | United Airlines | 70.4% | 1 min early | 659 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 555 records of UA1604 operating DEN → RNO, 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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