Flight profile · United Airlines
UA737
Seattle (SEA) to San Francisco (SFO) · scheduled 7:34 PM – 9:50 PM
How UA737 performs
1,058 operations, 2023-07-01 to 2026-06-30.
Source: US DOT Bureau of Transportation Statistics · 1,058 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA737 | 70.4% | 0.47% | -3 min | 10.6% | 1,058 |
| United Airlines on SEA → SFO | 72.9% | 0.79% | -5 min | 9.8% | 5,802 |
| All SEA → SFO flights | 69.9% | 1.02% | 0 min | 8.9% | 20,106 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does UA737 run worse on particular days?
Tuesday is historically the most reliable day and Friday the least, a gap of 23.8 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Other routes UA737 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| SFO→ABQ San Francisco to Albuquerque | 2026-06-25 – 2026-06-30 | 6 | — |
| SFO→ORD San Francisco to Chicago | 2023-10-29 – 2026-06-24 | 84 | — |
| SFO→EWR San Francisco to Newark | 2024-05-23 – 2026-03-28 | 106 | 64.8% |
| SFO→BWI San Francisco to Baltimore | 2025-12-02 – 2025-12-17 | 16 | — |
| SFO→MSY San Francisco to New Orleans | 2025-10-26 – 2025-10-31 | 6 | — |
| SFO→AUS San Francisco to Austin | 2025-06-26 – 2025-07-31 | 26 | — |
| IAH→SFO Houston to San Francisco | 2025-05-22 – 2025-06-25 | 35 | — |
| SFO→TPA San Francisco to Tampa | 2024-12-19 – 2025-03-05 | 60 | — |
| SFO→MCI San Francisco to Kansas City | 2024-06-27 – 2024-08-18 | 53 | — |
Because the same number has served different journeys, the statistics above describe only the route UA737 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 1,058 records of UA737 operating SEA → SFO, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.