AS678 SeattleSEA · 17:20 Las VegasLAS · 19:53
AS678 by Alaska Airlines flies from Seattle (SEA) to Las Vegas (LAS) for the Thu, Oct 29 departure.
departs SEA · on schedule
board checked 8m ago · checking again in 45s
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SEA and LAS are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records under conditions like today's, over the last 90 days.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
Tomorrow on this route
ForecastSeattle to Las Vegas with Alaska Airlines · Fri 30 Oct, local date
- Chance a departure is cancelled
- 0.8%0.8× usual
- Chance a departure leaves 60+ min late
- 16%1.2× usual
Forecast weather: 74% chance of rain at Seattle
Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · About 4 departures a day on this route with this airline. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Seattle to Las Vegas flights today
same route · Alaska AirlinesIf AS678 is cancelled, these are the other Alaska Airlines nonstop flights from Seattle to Las Vegas on the same day, with scheduled departure times in SEA local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →
How AS678 actually runs
Pro Flight Search has tracked every published board update for AS678 across the SEA and LAS boards: schedule changes, gate pushes and actual clocks. Combined risk score: 33.1/100. Based on airport operations, weather, and cached board history at SEA and LAS.
The verdict above is that record speaking, so it reflects how AS678 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as SEA and LAS published them.
Planning around AS678? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search: AS678 Seattle to Las Vegas on-time performance, measured from the SEA and LAS airport boards.
https://proflightsearch.com/flight/AS678
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