Flight profile · United Airlines
UA1685
Lihue, Kauai (LIH) to San Francisco (SFO) · scheduled 11:10 PM – 7:23 AM
How UA1685 performs
328 operations, 2024-09-28 to 2026-06-30.
UA1685 arrived on time 96.6% of the time, against 89.8% for all LIH → SFO flights — this specific departure is 6.8 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 4.5 points better.
Source: US DOT Bureau of Transportation Statistics · 328 operations between 2024-09-28 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1685 | 96.6% | 1.22% | -18 min | 1.2% | 328 |
| United Airlines on LIH → SFO | 92.1% | 0.58% | -12 min | 1.5% | 1,725 |
| All LIH → SFO flights | 89.8% | 0.67% | -12 min | 2.2% | 1,931 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-09-28 to 2026-06-30
Other routes UA1685 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 |
|---|---|---|---|
| LGA→IAH New York to Houston | 2026-04-30 – 2026-05-20 | 18 | — |
| LAS→SFO Las Vegas to San Francisco | 2026-03-05 – 2026-03-05 | 1 | — |
| DCA→ORD Washington to Chicago | 2024-12-03 – 2026-02-11 | 64 | — |
| ORD→SJC Chicago to San Jose | 2026-02-05 – 2026-02-05 | 1 | — |
| AUS→EWR Austin to Newark | 2025-12-02 – 2025-12-17 | 14 | — |
| IAD→RDU Washington to Raleigh–Durham | 2024-10-27 – 2025-12-01 | 63 | — |
| ORD→IAH Chicago to Houston | 2025-10-16 – 2025-10-16 | 1 | — |
| MSN→ORD Madison to Chicago | 2025-09-25 – 2025-09-25 | 1 | — |
| ORD→CVG Chicago to Cincinnati / Covington | 2025-09-24 – 2025-09-24 | 1 | — |
| SFO→LAX San Francisco to Los Angeles | 2025-08-19 – 2025-08-28 | 2 | — |
| DEN→TYS Denver to Knoxville/Maryville | 2025-05-01 – 2025-05-21 | 21 | — |
| IAH→DCA Houston to Washington | 2025-02-13 – 2025-03-05 | 15 | — |
| LAS→IAH Las Vegas to Houston | 2025-01-07 – 2025-02-12 | 37 | — |
| BNA→IAH Nashville to Houston | 2024-09-26 – 2024-10-25 | 26 | — |
| IAH→SAT Houston to San Antonio | 2024-09-26 – 2024-10-25 | 22 | — |
| LIH→DEN Lihue, Kauai to Denver | 2023-07-01 – 2024-09-25 | 453 | 96.2% |
Because the same number has served different journeys, the statistics above describe only the route UA1685 currently operates. Blending them would produce an average of two different flights.
Why UA1685 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding, fuelling — within the carrier’s control
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
Share of the delay minutes US DOT attributed to each cause for UA1685 on LIH → SFO. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Other departures on LIH → SFO
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| UA1112 | United Airlines | 91.7% | 10 min early | 604 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 328 records of UA1685 operating LIH → 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.
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