UA448
UA448 (United Airlines) is a multi-stop service on 18 routes, busiest Newark to San Francisco. Of 735 departures recorded from October 2024 to July 2026, 74.1% left on time, according to the US BTS.
- On-time departures74.1%of 735 flights
- Average delay15.5 min
- July 20264▼ 93.4%vs July 2025
- Cancelled0.7%
- Legs flown under this number18
according to the US BTS · Oct 12, 2024 → Jul 25, 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 | 16 | ▼ 48.4% |
| February | 28 | 12 | ▼ 57.1% |
| March | 31 | 31 | 0.0% |
| April | 30 | 10 | ▼ 66.7% |
| May | 49 | 10 | ▼ 79.6% |
| June | 60 | 26 | ▼ 56.7% |
| July | 61 | 4 | ▼ 93.4% |
| August | 49 | – | – |
| September | 35 | – | – |
| October | 52 | – | in progress |
| November | 30 | – | – |
| December | 53 | – | – |
| Year to date (Jan–Jul) | 290 | 109 | ▼ 62.4% |
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 | 80.7% | 60.0% | ▼ 25.6% |
| February | 75.0% | 45.5% | ▼ 39.4% |
| March | 67.7% | 64.5% | ▼ 4.8% |
| April | 70.0% | 100.0% | ▲ 42.9% |
| May | 80.9% | 100.0% | ▲ 23.7% |
| June | 71.7% | 80.8% | ▲ 12.7% |
| July | 65.6% | 75.0% | ▲ 14.4% |
| August | 63.3% | – | – |
| September | 77.1% | – | – |
| October | 84.6% | – | in progress |
| November | 66.7% | – | – |
| December | 75.5% | – | – |
| Year-to-date average (Jan–Jul) | 73.1% | 75.1% | ▲ 2.8% |
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 | 1 | – |
| February | 0 | 1 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 2 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 2 | 0.0% |
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 99.3% 730
- Cancelled 0.7% 5
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 25, 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 |
|---|---|---|---|---|
| EWR SFO Newark Liberty International Airport – San Francisco International Airport | 4,118 | 15.9 min | 75.8% | 222 |
| SFO ONT San Francisco International Airport – Ontario International Airport | 585 | 15.4 min | 75.2% | 133 |
| ORD SFO Chicago O'Hare International Airport – San Francisco International Airport | 2,964 | 17.8 min | 74.2% | 89 |
| IAH SFO George Bush Intercontinental Airport – San Francisco International Airport | 2,627 | 34.5 min | 57.4% | 54 |
| EWR MIA Newark Liberty International Airport – Miami International Airport | 1,750 | 20.8 min | 54.4% | 48 |
| SFO SAN San Francisco International Airport – San Diego International Airport | 719 | 13.2 min | 80.6% | 36 |
| BNA SFO Nashville International Airport – San Francisco International Airport | 3,161 | 5.7 min | 77.1% | 35 |
| DFW EWR Dallas Fort Worth International Airport – Newark Liberty International Airport | 2,205 | 3.3 min | 86.7% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 25 | 25 | 88.0% | 0 |
| November 2024 | 59 | 58 | 81.0% | 1 |
| December 2024 | 33 | 33 | 69.7% | 0 |
| January 2025 | 31 | 31 | 80.7% | 0 |
| February 2025 | 28 | 28 | 75.0% | 0 |
| March 2025 | 31 | 31 | 67.7% | 0 |
| April 2025 | 30 | 30 | 70.0% | 0 |
| May 2025 | 49 | 47 | 80.9% | 2 |
| June 2025 | 60 | 60 | 71.7% | 0 |
| July 2025 | 61 | 61 | 65.6% | 0 |
| August 2025 | 49 | 49 | 63.3% | 0 |
| September 2025 | 35 | 35 | 77.1% | 0 |
| October 2025 | 52 | 52 | 84.6% | 0 |
| November 2025 | 30 | 30 | 66.7% | 0 |
| December 2025 | 53 | 53 | 75.5% | 0 |
| January 2026 | 16 | 15 | 60.0% | 1 |
| February 2026 | 12 | 11 | 45.5% | 1 |
| March 2026 | 31 | 31 | 64.5% | 0 |
| April 2026 | 10 | 10 | 100.0% | 0 |
| May 2026 | 10 | 10 | 100.0% | 0 |
| June 2026 | 26 | 26 | 80.8% | 0 |
| July 2026 | 4 | 4 | 75.0% | 0 |