UA1779
UA1779 (United Airlines) is a multi-stop service on 4 routes, busiest San Diego to Chicago. Of 893 departures recorded from October 2024 to July 2026, 79.3% left on time, according to the US BTS.
- On-time departures79.3%of 893 flights
- Average delay13.1 min
- July 202661▲ 29.8%vs July 2025
- Cancelled0.9%
- Legs flown under this number4
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 | 31 | 31 | 0.0% |
| February | 28 | 28 | 0.0% |
| March | 45 | 33 | ▼ 26.7% |
| April | 30 | 51 | ▲ 70.0% |
| May | 36 | 54 | ▲ 50.0% |
| June | 44 | 57 | ▲ 29.5% |
| July | 47 | 61 | ▲ 29.8% |
| August | 48 | – | – |
| September | 49 | – | – |
| October | 59 | – | in progress |
| November | 49 | – | – |
| December | 32 | – | – |
| Year to date (Jan–Jul) | 261 | 315 | ▲ 20.7% |
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 | 87.1% | 83.9% | ▼ 3.7% |
| February | 92.9% | 92.9% | 0.0% |
| March | 80.0% | 87.9% | ▲ 9.8% |
| April | 83.3% | 74.5% | ▼ 10.6% |
| May | 94.4% | 83.3% | ▼ 11.8% |
| June | 81.8% | 73.2% | ▼ 10.5% |
| July | 63.0% | 74.1% | ▲ 17.6% |
| August | 68.1% | – | – |
| September | 73.5% | – | – |
| October | 67.8% | – | in progress |
| November | 70.2% | – | – |
| December | 84.4% | – | – |
| Year-to-date average (Jan–Jul) | 83.2% | 81.4% | ▼ 2.2% |
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 | 0 | 1 | – |
| July | 1 | 3 | ▲ 200.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 4 | ▲ 300.0% |
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 99.1% 885
- Cancelled 0.9% 8
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
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SAN ORD San Diego International Airport – Chicago O'Hare International Airport | 2,768 | 9.7 min | 83.5% | 346 |
| LAS ORD Harry Reid International Airport – Chicago O'Hare International Airport | 2,432 | 8.2 min | 86.4% | 309 |
| ORD BOS Chicago O'Hare International Airport – Boston Logan International Airport | 1,391 | 24.8 min | 63.4% | 224 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 29 | 29 | 86.2% | 0 |
| December 2024 | 31 | 31 | 96.8% | 0 |
| January 2025 | 31 | 31 | 87.1% | 0 |
| February 2025 | 28 | 28 | 92.9% | 0 |
| March 2025 | 45 | 45 | 80.0% | 0 |
| April 2025 | 30 | 30 | 83.3% | 0 |
| May 2025 | 36 | 36 | 94.4% | 0 |
| June 2025 | 44 | 44 | 81.8% | 0 |
| July 2025 | 47 | 46 | 63.0% | 1 |
| August 2025 | 48 | 47 | 68.1% | 1 |
| September 2025 | 49 | 49 | 73.5% | 0 |
| October 2025 | 59 | 59 | 67.8% | 0 |
| November 2025 | 49 | 47 | 70.2% | 2 |
| December 2025 | 32 | 32 | 84.4% | 0 |
| January 2026 | 31 | 31 | 83.9% | 0 |
| February 2026 | 28 | 28 | 92.9% | 0 |
| March 2026 | 33 | 33 | 87.9% | 0 |
| April 2026 | 51 | 51 | 74.5% | 0 |
| May 2026 | 54 | 54 | 83.3% | 0 |
| June 2026 | 57 | 56 | 73.2% | 1 |
| July 2026 | 61 | 58 | 74.1% | 3 |