UA401
UA401 (United Airlines) is a multi-stop service on 11 routes, busiest Denver to Hayden. Of 332 departures recorded from October 2024 to March 2026, 87.3% left on time, according to the US BTS.
- On-time departures87.3%of 332 flights
- Average delay4.7 min
- March 20264
- Cancelled0.6%
- Legs flown under this number11
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods10 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 25 | 26 | ▲ 4.0% |
| February | 12 | 28 | ▲ 133.3% |
| March | – | 4 | – |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | 25 | – | – |
| September | 37 | – | – |
| October | 54 | – | in progress |
| November | 29 | – | – |
| December | 17 | – | – |
according to the US BTS · October 2024 → March 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods10 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 76.0% | 80.8% | ▲ 6.3% |
| February | 50.0% | 96.4% | ▲ 92.9% |
| March | – | 100.0% | – |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | 84.0% | – | – |
| September | 91.9% | – | – |
| October | 87.0% | – | in progress |
| November | 93.1% | – | – |
| December | 100.0% | – | – |
according to the US BTS · October 2024 → March 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → March 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods10 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | – | 1 | – |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · October 2024 → March 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 99.4% 330
- Cancelled 0.6% 2
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Mar 4, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN HDN Denver International Airport – Yampa Valley Airport | 227 | 8.5 min | 83.8% | 68 |
| PHX DEN Phoenix Sky Harbor International Airport – Denver International Airport | 968 | -2.6 min | 96.0% | 50 |
| IAH FLL George Bush Intercontinental Airport – Fort Lauderdale Hollywood International Airport | 1,552 | 7.5 min | 90.2% | 41 |
| SFO RNO San Francisco International Airport – Reno Tahoe International Airport | 308 | 1.4 min | 86.5% | 37 |
| DEN MCI Denver International Airport – Kansas City International Airport | 855 | 16.4 min | 67.6% | 37 |
| STL DEN St. Louis Lambert International Airport – Denver International Airport | 1,236 | 5.3 min | 90.3% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 33 | 33 | 93.9% | 0 |
| November 2024 | 24 | 23 | 87.0% | 1 |
| December 2024 | 18 | 18 | 83.3% | 0 |
| January 2025 | 25 | 25 | 76.0% | 0 |
| February 2025 | 12 | 12 | 50.0% | 0 |
| August 2025 | 25 | 25 | 84.0% | 0 |
| September 2025 | 37 | 37 | 91.9% | 0 |
| October 2025 | 54 | 54 | 87.0% | 0 |
| November 2025 | 29 | 29 | 93.1% | 0 |
| December 2025 | 17 | 17 | 100.0% | 0 |
| January 2026 | 26 | 26 | 80.8% | 0 |
| February 2026 | 28 | 28 | 96.4% | 0 |
| March 2026 | 4 | 3 | 100.0% | 1 |