UA1835
UA1835 (United Airlines) is a multi-stop service on 11 routes, busiest Denver to San Diego. Of 691 departures recorded from October 2024 to July 2026, 69.8% left on time, according to the US BTS.
- On-time departures69.8%of 691 flights
- Average delay21.8 min
- July 202641▲ 41.4%vs July 2025
- Cancelled1.2%
- 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 | 25 | 0.0% |
| February | 24 | 17 | ▼ 29.2% |
| March | 31 | 17 | ▼ 45.2% |
| April | 21 | 19 | ▼ 9.5% |
| May | 40 | 49 | ▲ 22.5% |
| June | 30 | 51 | ▲ 70.0% |
| July | 29 | 41 | ▲ 41.4% |
| August | 37 | – | – |
| September | 47 | – | – |
| October | 43 | – | in progress |
| November | 22 | – | – |
| December | 54 | – | – |
| Year to date (Jan–Jul) | 200 | 219 | ▲ 9.5% |
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 | 92.0% | 66.7% | ▼ 27.5% |
| February | 66.7% | 94.1% | ▲ 41.2% |
| March | 71.0% | 58.8% | ▼ 17.1% |
| April | 61.9% | 94.7% | ▲ 53.1% |
| May | 48.7% | 83.7% | ▲ 71.7% |
| June | 60.0% | 68.6% | ▲ 14.4% |
| July | 31.0% | 61.5% | ▲ 98.3% |
| August | 61.1% | – | – |
| September | 67.4% | – | – |
| October | 74.4% | – | in progress |
| November | 86.4% | – | – |
| December | 73.6% | – | – |
| Year-to-date average (Jan–Jul) | 61.6% | 75.5% | ▲ 22.5% |
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 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 2 | – |
| August | 1 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 1 | 3 | ▲ 200.0% |
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 98.8% 683
- Cancelled 1.2% 8
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN SAN Denver International Airport – San Diego International Airport | 1,371 | 22.5 min | 64.7% | 383 |
| EWR BOS Newark Liberty International Airport – Boston Logan International Airport | 322 | 15.0 min | 79.2% | 102 |
| FCA DEN Glacier Park International Airport – Denver International Airport | 1,210 | 16.4 min | 75.9% | 56 |
| LGA DEN LaGuardia Airport – Denver International Airport | 2,600 | 39.0 min | 79.3% | 53 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 17 | 17 | 88.2% | 0 |
| November 2024 | 24 | 24 | 79.2% | 0 |
| December 2024 | 28 | 27 | 74.1% | 1 |
| January 2025 | 25 | 25 | 92.0% | 0 |
| February 2025 | 24 | 24 | 66.7% | 0 |
| March 2025 | 31 | 31 | 71.0% | 0 |
| April 2025 | 21 | 21 | 61.9% | 0 |
| May 2025 | 40 | 39 | 48.7% | 1 |
| June 2025 | 30 | 30 | 60.0% | 0 |
| July 2025 | 29 | 29 | 31.0% | 0 |
| August 2025 | 37 | 36 | 61.1% | 1 |
| September 2025 | 47 | 46 | 67.4% | 1 |
| October 2025 | 43 | 43 | 74.4% | 0 |
| November 2025 | 22 | 22 | 86.4% | 0 |
| December 2025 | 54 | 53 | 73.6% | 1 |
| January 2026 | 25 | 24 | 66.7% | 1 |
| February 2026 | 17 | 17 | 94.1% | 0 |
| March 2026 | 17 | 17 | 58.8% | 0 |
| April 2026 | 19 | 19 | 94.7% | 0 |
| May 2026 | 49 | 49 | 83.7% | 0 |
| June 2026 | 51 | 51 | 68.6% | 0 |
| July 2026 | 41 | 39 | 61.5% | 2 |