UA433
UA433 (United Airlines) is a multi-stop service on 18 routes, busiest San Francisco to Seattle. Of 917 departures recorded from October 2024 to July 2026, 84.5% left on time, according to the US BTS.
- On-time departures84.5%of 917 flights
- Average delay5.6 min
- July 202631▼ 42.6%vs July 2025
- Cancelled0.7%
- Legs flown under this number18
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 | 31 | 0.0% |
| February | 24 | 28 | ▲ 16.7% |
| March | 33 | 33 | 0.0% |
| April | 60 | 47 | ▼ 21.7% |
| May | 38 | 48 | ▲ 26.3% |
| June | 51 | 30 | ▼ 41.2% |
| July | 54 | 31 | ▼ 42.6% |
| August | 56 | – | – |
| September | 60 | – | – |
| October | 56 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 291 | 248 | ▼ 14.8% |
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% | 100.0% | ▲ 6.9% |
| February | 83.3% | 100.0% | ▲ 20.0% |
| March | 93.9% | 90.9% | ▼ 3.2% |
| April | 91.5% | 63.8% | ▼ 30.3% |
| May | 92.1% | 44.7% | ▼ 51.5% |
| June | 86.3% | 80.0% | ▼ 7.3% |
| July | 87.0% | 61.3% | ▼ 29.6% |
| August | 87.5% | – | – |
| September | 88.3% | – | – |
| October | 96.4% | – | in progress |
| November | 82.1% | – | – |
| December | 83.9% | – | – |
| Year-to-date average (Jan–Jul) | 89.7% | 77.2% | ▼ 13.9% |
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 | 2 | – |
| March | 0 | 0 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 3 | ▲ 200.0% |
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% 911
- Cancelled 0.7% 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
99 of 9
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SFO SEA San Francisco International Airport – Seattle–Tacoma International Airport | 1,093 | 3.0 min | 87.6% | 197 |
| MCO SFO Orlando International Airport – San Francisco International Airport | 3,929 | -2.2 min | 94.1% | 168 |
| PHL SFO Philadelphia International Airport – San Francisco International Airport | 4,048 | 2.9 min | 85.4% | 89 |
| SFO MFR San Francisco International Airport – Rogue Valley International-Medford Airport | 530 | 8.9 min | 81.2% | 85 |
| PIT SFO Pittsburgh International Airport – San Francisco International Airport | 3,618 | 0.9 min | 90.5% | 84 |
| SFO CMH San Francisco International Airport – John Glenn Columbus International Airport | 3,403 | 14.7 min | 68.4% | 77 |
| LAX SFO Los Angeles International Airport – San Francisco International Airport | 543 | 24.5 min | 62.9% | 70 |
| BZN LAX Bozeman Yellowstone International Airport – Los Angeles International Airport | 1,453 | -9.0 min | 100.0% | 37 |
| ALB ORD Albany International Airport – Chicago O'Hare International Airport | 1,161 | 20.8 min | 66.7% | 36 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 24 | 24 | 100.0% | 0 |
| November 2024 | 59 | 59 | 93.2% | 0 |
| December 2024 | 62 | 62 | 72.6% | 0 |
| January 2025 | 31 | 31 | 93.6% | 0 |
| February 2025 | 24 | 24 | 83.3% | 0 |
| March 2025 | 33 | 33 | 93.9% | 0 |
| April 2025 | 60 | 59 | 91.5% | 1 |
| May 2025 | 38 | 38 | 92.1% | 0 |
| June 2025 | 51 | 51 | 86.3% | 0 |
| July 2025 | 54 | 54 | 87.0% | 0 |
| August 2025 | 56 | 56 | 87.5% | 0 |
| September 2025 | 60 | 60 | 88.3% | 0 |
| October 2025 | 56 | 56 | 96.4% | 0 |
| November 2025 | 30 | 28 | 82.1% | 2 |
| December 2025 | 31 | 31 | 83.9% | 0 |
| January 2026 | 31 | 31 | 100.0% | 0 |
| February 2026 | 28 | 26 | 100.0% | 2 |
| March 2026 | 33 | 33 | 90.9% | 0 |
| April 2026 | 47 | 47 | 63.8% | 0 |
| May 2026 | 48 | 47 | 44.7% | 1 |
| June 2026 | 30 | 30 | 80.0% | 0 |
| July 2026 | 31 | 31 | 61.3% | 0 |