AS678 SEA → LAS

Alaska Airlines · Seattle, WA to Las Vegas, NV · 60 flights observed, 2025-10-26 to 2026-01-06 · 867 mi

This flight's reliability varies a lot by day of week — 89% on-time on Thursdays vs. 38% on Sundays.

AS678 covers more than one route in the data window — the stats below are for SEA → LAS, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
67%
Median delay
0 min
90th percentile
+56 min
Cancellation rate
5%

How often is AS678 on time?

Across 60 flights on SEA → LAS from 2025-10-26 to 2026-01-06, AS678 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +56 min or later. 5% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time3867%
16-30 min47%
31-60 min1018%
61-120 min35%
2+ hrs24%

Performance by month

MonthFlightsOn-timeAvg delay
2025-10580%-4 min
2025-111878%+18 min
2025-122864%+12 min
2026-01633%+28 min

Performance by day of week

DayFlightsOn-time
Mon850%
Tue956%
Wed978%
Thu989%
Fri888%
Sat667%
Sun838%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…