UA301
UA301 (United Airlines) is a multi-stop service on 19 routes, busiest San Francisco to Denver. Of 798 departures recorded from October 2024 to July 2026, 85.2% left on time, according to the US BTS.
- On-time departures85.2%of 798 flights
- Average delay6.0 min
- July 202631▼ 49.2%vs July 2025
- Cancelled0.8%
- Legs flown under this number19
according to the US BTS · Oct 12, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 56 | ▲ 80.6% |
| February | 28 | 56 | ▲ 100.0% |
| March | 31 | 35 | ▲ 12.9% |
| April | 59 | 30 | ▼ 49.2% |
| May | 31 | 31 | 0.0% |
| June | 35 | 30 | ▼ 14.3% |
| July | 61 | 31 | ▼ 49.2% |
| August | 30 | – | – |
| September | 34 | – | – |
| October | 45 | – | in progress |
| November | 30 | – | – |
| December | 27 | – | – |
| Year to date (Jan–Jul) | 276 | 269 | ▼ 2.5% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 93.6% | 91.1% | ▼ 2.7% |
| February | 96.4% | 82.1% | ▼ 14.8% |
| March | 66.7% | 100.0% | ▲ 50.0% |
| April | 93.1% | 63.3% | ▼ 32.0% |
| May | 96.8% | 80.7% | ▼ 16.7% |
| June | 91.4% | 60.0% | ▼ 34.4% |
| July | 75.0% | 73.3% | ▼ 2.2% |
| August | 89.3% | – | – |
| September | 82.4% | – | – |
| October | 93.3% | – | in progress |
| November | 80.0% | – | – |
| December | 81.5% | – | – |
| Year-to-date average (Jan–Jul) | 87.6% | 78.6% | ▼ 10.2% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 1 | 1 | 0.0% |
| August | 2 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 1 | ▼ 66.7% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 99.2% 792
- Cancelled 0.8% 6
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
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SFO DEN San Francisco International Airport – Denver International Airport | 1,553 | 9.1 min | 79.6% | 207 |
| SFO LAX San Francisco International Airport – Los Angeles International Airport | 543 | 5.6 min | 85.7% | 98 |
| ORD DSM Chicago O'Hare International Airport – Des Moines International Airport | 480 | -0.9 min | 95.1% | 82 |
| ORD AUS Chicago O'Hare International Airport – Austin Bergstrom International Airport | 1,574 | 1.1 min | 94.0% | 67 |
| SNA SFO John Wayne Orange County International Airport – San Francisco International Airport | 598 | 5.5 min | 84.5% | 58 |
| AUS SFO Austin Bergstrom International Airport – San Francisco International Airport | 2,417 | 11.3 min | 76.0% | 53 |
| SFO BUR San Francisco International Airport – Hollywood Burbank/Bob Hope Airport | 525 | 13.2 min | 77.1% | 35 |
| LAX EWR Los Angeles International Airport – Newark Liberty International Airport | 3,941 | 7.2 min | 82.9% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 19 | 19 | 94.7% | 0 |
| November 2024 | 21 | 21 | 95.2% | 0 |
| December 2024 | 47 | 47 | 91.5% | 0 |
| January 2025 | 31 | 31 | 93.6% | 0 |
| February 2025 | 28 | 28 | 96.4% | 0 |
| March 2025 | 31 | 30 | 66.7% | 1 |
| April 2025 | 59 | 58 | 93.1% | 1 |
| May 2025 | 31 | 31 | 96.8% | 0 |
| June 2025 | 35 | 35 | 91.4% | 0 |
| July 2025 | 61 | 60 | 75.0% | 1 |
| August 2025 | 30 | 28 | 89.3% | 2 |
| September 2025 | 34 | 34 | 82.4% | 0 |
| October 2025 | 45 | 45 | 93.3% | 0 |
| November 2025 | 30 | 30 | 80.0% | 0 |
| December 2025 | 27 | 27 | 81.5% | 0 |
| January 2026 | 56 | 56 | 91.1% | 0 |
| February 2026 | 56 | 56 | 82.1% | 0 |
| March 2026 | 35 | 35 | 100.0% | 0 |
| April 2026 | 30 | 30 | 63.3% | 0 |
| May 2026 | 31 | 31 | 80.7% | 0 |
| June 2026 | 30 | 30 | 60.0% | 0 |
| July 2026 | 31 | 30 | 73.3% | 1 |