UA737
UA737 (United Airlines) is a multi-stop service on 9 routes, busiest Seattle to San Francisco. Of 928 departures recorded from October 2024 to July 2026, 73.3% left on time, according to the US BTS.
- On-time departures73.3%of 928 flights
- Average delay17.5 min
- July 202658▲ 7.4%vs July 2025
- Cancelled0.7%
- Legs flown under this number9
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 | 55 | 31 | ▼ 43.6% |
| February | 48 | 28 | ▼ 41.7% |
| March | 34 | 55 | ▲ 61.8% |
| April | 30 | 30 | 0.0% |
| May | 41 | 42 | ▲ 2.4% |
| June | 58 | 60 | ▲ 3.4% |
| July | 54 | 58 | ▲ 7.4% |
| August | 49 | – | – |
| September | 30 | – | – |
| October | 37 | – | in progress |
| November | 27 | – | – |
| December | 47 | – | – |
| Year to date (Jan–Jul) | 320 | 304 | ▼ 5.0% |
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 | 90.9% | 77.4% | ▼ 14.8% |
| February | 81.3% | 82.1% | ▲ 1.1% |
| March | 76.5% | 72.2% | ▼ 5.6% |
| April | 70.0% | 56.7% | ▼ 19.0% |
| May | 75.6% | 52.4% | ▼ 30.7% |
| June | 70.7% | 45.8% | ▼ 35.3% |
| July | 71.7% | 53.5% | ▼ 25.5% |
| August | 69.4% | – | – |
| September | 76.7% | – | – |
| October | 83.8% | – | in progress |
| November | 92.0% | – | – |
| December | 76.6% | – | – |
| Year-to-date average (Jan–Jul) | 76.7% | 62.9% | ▼ 18.0% |
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 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 2 | ▲ 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 99.4% 922
- Cancelled 0.6% 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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SEA SFO Seattle–Tacoma International Airport – San Francisco International Airport | 1,093 | 16.2 min | 73.4% | 620 |
| SFO EWR San Francisco International Airport – Newark Liberty International Airport | 4,118 | 16.8 min | 65.8% | 77 |
| SFO TPA San Francisco International Airport – Tampa International Airport | 3,844 | 8.1 min | 88.3% | 60 |
| SFO ORD San Francisco International Airport – Chicago O'Hare International Airport | 2,964 | 33.3 min | 70.4% | 55 |
| IAH SFO George Bush Intercontinental Airport – San Francisco International Airport | 2,627 | 33.8 min | 60.0% | 35 |
| SFO ABQ San Francisco International Airport – Albuquerque International Sunport | 1,439 | 20.6 min | 72.7% | 33 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 22 | 22 | 90.9% | 0 |
| November 2024 | 46 | 45 | 88.9% | 1 |
| December 2024 | 46 | 46 | 87.0% | 0 |
| January 2025 | 55 | 55 | 90.9% | 0 |
| February 2025 | 48 | 48 | 81.3% | 0 |
| March 2025 | 34 | 34 | 76.5% | 0 |
| April 2025 | 30 | 30 | 70.0% | 0 |
| May 2025 | 41 | 41 | 75.6% | 0 |
| June 2025 | 58 | 58 | 70.7% | 0 |
| July 2025 | 54 | 53 | 71.7% | 1 |
| August 2025 | 49 | 49 | 69.4% | 0 |
| September 2025 | 30 | 30 | 76.7% | 0 |
| October 2025 | 37 | 37 | 83.8% | 0 |
| November 2025 | 27 | 25 | 92.0% | 2 |
| December 2025 | 47 | 47 | 76.6% | 0 |
| January 2026 | 31 | 31 | 77.4% | 0 |
| February 2026 | 28 | 28 | 82.1% | 0 |
| March 2026 | 55 | 54 | 72.2% | 1 |
| April 2026 | 30 | 30 | 56.7% | 0 |
| May 2026 | 42 | 42 | 52.4% | 0 |
| June 2026 | 60 | 59 | 45.8% | 1 |
| July 2026 | 58 | 58 | 53.5% | 0 |