UA1604
UA1604 (United Airlines) is a multi-stop service on 13 routes, busiest Denver to Reno. Of 1,134 departures recorded from October 2024 to July 2026, 83.0% left on time, according to the US BTS.
- On-time departures83.0%of 1,134 flights
- Average delay10.8 min
- July 202693▲ 50.0%vs July 2025
- Cancelled0.2%
- Legs flown under this number13
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 31 | 0.0% |
| February | 28 | 28 | 0.0% |
| March | 52 | 83 | ▲ 59.6% |
| April | 60 | 90 | ▲ 50.0% |
| May | 38 | 93 | ▲ 144.7% |
| June | 56 | 90 | ▲ 60.7% |
| July | 62 | 93 | ▲ 50.0% |
| August | 75 | – | – |
| September | 54 | – | – |
| October | 31 | – | in progress |
| November | 28 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 327 | 508 | ▲ 55.4% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 80.7% | 93.6% | ▲ 16.0% |
| February | 89.3% | 82.1% | ▼ 8.0% |
| March | 82.7% | 82.9% | ▲ 0.3% |
| April | 76.7% | 88.9% | ▲ 15.9% |
| May | 89.5% | 79.6% | ▼ 11.1% |
| June | 87.5% | 72.2% | ▼ 17.5% |
| July | 82.0% | 79.6% | ▼ 2.9% |
| August | 74.7% | – | – |
| September | 87.0% | – | – |
| October | 90.3% | – | in progress |
| November | 92.9% | – | – |
| December | 93.6% | – | – |
| Year-to-date average (Jan–Jul) | 84.0% | 82.7% | ▼ 1.6% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 1 | 0.0% |
according to the US BTS · October 2024 → July 2026
This is a historical record of departures already flown, not a forecast for your flight.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 99.8% 1,132
- Cancelled 0.2% 2
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN RNO Denver International Airport – Reno Tahoe International Airport | 1,291 | 10.7 min | 84.6% | 548 |
| MSP DEN Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Denver International Airport | 1,092 | 4.9 min | 88.2% | 170 |
| SFO DEN San Francisco International Airport – Denver International Airport | 1,553 | 13.8 min | 67.6% | 148 |
| SNA SFO John Wayne Orange County International Airport – San Francisco International Airport | 598 | 9.2 min | 81.9% | 72 |
| RDU SFO Raleigh-Durham International Airport – San Francisco International Airport | 3,853 | -2.8 min | 98.1% | 53 |
| IAH EWR George Bush Intercontinental Airport – Newark Liberty International Airport | 2,250 | 66.3 min | 65.6% | 32 |
| LAS IAH Harry Reid International Airport – George Bush Intercontinental Airport | 1,963 | 5.3 min | 90.0% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 80.0% | 0 |
| November 2024 | 29 | 29 | 82.8% | 0 |
| December 2024 | 31 | 31 | 90.3% | 0 |
| January 2025 | 31 | 31 | 80.7% | 0 |
| February 2025 | 28 | 28 | 89.3% | 0 |
| March 2025 | 52 | 52 | 82.7% | 0 |
| April 2025 | 60 | 60 | 76.7% | 0 |
| May 2025 | 38 | 38 | 89.5% | 0 |
| June 2025 | 56 | 56 | 87.5% | 0 |
| July 2025 | 62 | 61 | 82.0% | 1 |
| August 2025 | 75 | 75 | 74.7% | 0 |
| September 2025 | 54 | 54 | 87.0% | 0 |
| October 2025 | 31 | 31 | 90.3% | 0 |
| November 2025 | 28 | 28 | 92.9% | 0 |
| December 2025 | 31 | 31 | 93.6% | 0 |
| January 2026 | 31 | 31 | 93.6% | 0 |
| February 2026 | 28 | 28 | 82.1% | 0 |
| March 2026 | 83 | 82 | 82.9% | 1 |
| April 2026 | 90 | 90 | 88.9% | 0 |
| May 2026 | 93 | 93 | 79.6% | 0 |
| June 2026 | 90 | 90 | 72.2% | 0 |
| July 2026 | 93 | 93 | 79.6% | 0 |