Flight profile · Alaska Airlines
AS634
Las Vegas (LAS) to San Francisco (SFO) · scheduled 3:39 PM – 5:20 PM
How AS634 performs
327 operations, 2024-05-16 to 2026-06-30.
AS634 arrived on time 59.5% of the time, against 67.2% for all LAS → SFO flights — this specific departure is 7.7 percentage points worse than the route as a whole. Against Alaska Airlines’s own flights on this route it is 10.2 points worse.
Source: US DOT Bureau of Transportation Statistics · 327 operations between 2024-05-16 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| AS634 | 59.5% | 0.31% | 6 min | 8.0% | 327 |
| Alaska Airlines on LAS → SFO | 69.7% | 1.74% | -1 min | 9.1% | 2,872 |
| All LAS → SFO flights | 67.2% | 1.00% | 0 min | 10.4% | 17,713 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-05-16 to 2026-06-30
Other routes AS634 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→LAS San Francisco to Las Vegas | 2025-03-19 – 2026-03-17 | 115 | 78.3% |
| SEA→SFO Seattle to San Francisco | 2024-08-21 – 2024-10-26 | 61 | — |
| ANC→MSP Anchorage to Minneapolis | 2024-06-13 – 2024-08-18 | 67 | — |
| LIH→SJC Lihue, Kauai to San Jose | 2024-04-20 – 2024-05-11 | 4 | — |
| SEA→PHX Seattle to Phoenix | 2024-02-15 – 2024-03-13 | 27 | — |
| SEA→MSY Seattle to New Orleans | 2023-12-29 – 2023-12-29 | 1 | — |
| PDX→LAS Portland to Las Vegas | 2023-11-17 – 2023-11-17 | 1 | — |
Because the same number has served different journeys, the statistics above describe only the route AS634 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 327 records of AS634 operating LAS → 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.