UA2633
UA2633 (United Airlines) is a multi-stop service on 10 routes, busiest Denver to San Francisco. Of 1,227 departures recorded from October 2024 to July 2026, 80.4% left on time, according to the US BTS.
- On-time departures80.4%of 1,227 flights
- Average delay13.8 min
- July 202631▼ 65.9%vs July 2025
- Cancelled0.3%
- Legs flown under this number10
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 | 81 | 36 | ▼ 55.6% |
| February | 57 | 28 | ▼ 50.9% |
| March | 85 | 31 | ▼ 63.5% |
| April | 82 | 30 | ▼ 63.4% |
| May | 93 | 51 | ▼ 45.2% |
| June | 89 | 30 | ▼ 66.3% |
| July | 91 | 31 | ▼ 65.9% |
| August | 49 | – | – |
| September | 41 | – | – |
| October | 77 | – | in progress |
| November | 29 | – | – |
| December | 59 | – | – |
| Year to date (Jan–Jul) | 578 | 237 | ▼ 59.0% |
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 | 90.1% | 72.2% | ▼ 19.9% |
| February | 79.0% | 64.3% | ▼ 18.6% |
| March | 87.1% | 83.9% | ▼ 3.7% |
| April | 91.5% | 80.0% | ▼ 12.5% |
| May | 87.1% | 76.5% | ▼ 12.2% |
| June | 80.5% | 46.7% | ▼ 42.0% |
| July | 84.3% | 58.1% | ▼ 31.1% |
| August | 73.5% | – | – |
| September | 87.8% | – | – |
| October | 85.7% | – | in progress |
| November | 75.9% | – | – |
| December | 74.6% | – | – |
| Year-to-date average (Jan–Jul) | 85.6% | 68.8% | ▼ 19.7% |
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 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 2 | 0 | ▼ 100.0% |
| July | 2 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 4 | 0 | ▼ 100.0% |
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 99.7% 1,223
- Cancelled 0.3% 4
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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN SFO Denver International Airport – San Francisco International Airport | 1,553 | 20.3 min | 73.6% | 512 |
| SFO SAN San Francisco International Airport – San Diego International Airport | 719 | 5.2 min | 85.6% | 306 |
| SAN ORD San Diego International Airport – Chicago O'Hare International Airport | 2,768 | 9.9 min | 87.3% | 142 |
| PDX SFO Portland International Airport – San Francisco International Airport | 886 | 13.5 min | 79.5% | 122 |
| SFO IAH San Francisco International Airport – George Bush Intercontinental Airport | 2,627 | 29.4 min | 74.0% | 50 |
| CLE DEN Cleveland Hopkins International Airport – Denver International Airport | 1,928 | 6.9 min | 93.3% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 40 | 40 | 92.5% | 0 |
| November 2024 | 58 | 58 | 69.0% | 0 |
| December 2024 | 59 | 59 | 74.6% | 0 |
| January 2025 | 81 | 81 | 90.1% | 0 |
| February 2025 | 57 | 57 | 79.0% | 0 |
| March 2025 | 85 | 85 | 87.1% | 0 |
| April 2025 | 82 | 82 | 91.5% | 0 |
| May 2025 | 93 | 93 | 87.1% | 0 |
| June 2025 | 89 | 87 | 80.5% | 2 |
| July 2025 | 91 | 89 | 84.3% | 2 |
| August 2025 | 49 | 49 | 73.5% | 0 |
| September 2025 | 41 | 41 | 87.8% | 0 |
| October 2025 | 77 | 77 | 85.7% | 0 |
| November 2025 | 29 | 29 | 75.9% | 0 |
| December 2025 | 59 | 59 | 74.6% | 0 |
| January 2026 | 36 | 36 | 72.2% | 0 |
| February 2026 | 28 | 28 | 64.3% | 0 |
| March 2026 | 31 | 31 | 83.9% | 0 |
| April 2026 | 30 | 30 | 80.0% | 0 |
| May 2026 | 51 | 51 | 76.5% | 0 |
| June 2026 | 30 | 30 | 46.7% | 0 |
| July 2026 | 31 | 31 | 58.1% | 0 |