UA1633
UA1633 (United Airlines) is a multi-stop service on 11 routes, busiest Denver to Nashville. Of 558 departures recorded from October 2024 to July 2026, 87.8% left on time, according to the US BTS.
- On-time departures87.8%of 558 flights
- Average delay5.2 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.5%
- Legs flown under this number11
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 | 25 | 26 | ▲ 4.0% |
| February | 28 | 12 | ▼ 57.1% |
| March | 31 | 32 | ▲ 3.2% |
| April | 30 | 30 | 0.0% |
| May | 31 | 31 | 0.0% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 206 | 192 | ▼ 6.8% |
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 | 91.7% | 88.0% | ▼ 4.0% |
| February | 71.4% | 100.0% | ▲ 40.0% |
| March | 67.7% | 84.4% | ▲ 24.6% |
| April | 93.1% | 93.3% | ▲ 0.2% |
| May | 90.3% | 90.3% | 0.0% |
| June | 80.0% | 93.3% | ▲ 16.7% |
| July | 80.7% | 93.6% | ▲ 16.0% |
| August | 93.6% | – | – |
| September | 90.0% | – | – |
| October | 90.3% | – | in progress |
| November | 100.0% | – | – |
| December | 100.0% | – | – |
| Year-to-date average (Jan–Jul) | 82.1% | 91.8% | ▲ 11.8% |
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 | 1 | 1 | 0.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 1 | ▼ 50.0% |
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 99.5% 555
- Cancelled 0.5% 3
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 BNA Denver International Airport – Nashville International Airport | 1,628 | 3.5 min | 88.7% | 194 |
| DEN CLT Denver International Airport – Charlotte Douglas International Airport | 2,148 | 4.7 min | 92.0% | 125 |
| SAN ORD San Diego International Airport – Chicago O'Hare International Airport | 2,768 | 2.5 min | 94.2% | 53 |
| MSY DEN Louis Armstrong New Orleans International Airport – Denver International Airport | 1,708 | 3.3 min | 89.1% | 46 |
| ORD EWR Chicago O'Hare International Airport – Newark Liberty International Airport | 1,154 | 17.8 min | 64.4% | 45 |
| ORD IAH Chicago O'Hare International Airport – George Bush Intercontinental Airport | 1,491 | 4.3 min | 91.7% | 37 |
| AUS IAH Austin Bergstrom International Airport – George Bush Intercontinental Airport | 225 | 5.1 min | 88.9% | 37 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 18 | 18 | 83.3% | 0 |
| November 2024 | 17 | 17 | 82.4% | 0 |
| December 2024 | 2 | 2 | 100.0% | 0 |
| January 2025 | 25 | 24 | 91.7% | 1 |
| February 2025 | 28 | 28 | 71.4% | 0 |
| March 2025 | 31 | 31 | 67.7% | 0 |
| April 2025 | 30 | 29 | 93.1% | 1 |
| May 2025 | 31 | 31 | 90.3% | 0 |
| June 2025 | 30 | 30 | 80.0% | 0 |
| July 2025 | 31 | 31 | 80.7% | 0 |
| August 2025 | 31 | 31 | 93.6% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 31 | 31 | 90.3% | 0 |
| November 2025 | 30 | 30 | 100.0% | 0 |
| December 2025 | 1 | 1 | 100.0% | 0 |
| January 2026 | 26 | 25 | 88.0% | 1 |
| February 2026 | 12 | 12 | 100.0% | 0 |
| March 2026 | 32 | 32 | 84.4% | 0 |
| April 2026 | 30 | 30 | 93.3% | 0 |
| May 2026 | 31 | 31 | 90.3% | 0 |
| June 2026 | 30 | 30 | 93.3% | 0 |
| July 2026 | 31 | 31 | 93.6% | 0 |