Alaska Airlines SEA to LAS on-time performance
Alaska Airlines nonstop flights from Seattle to Las Vegas · Aug 2025 – Jul 2026
On-time arrivals
79%
arrived < 15 min late
Cancelled
0.8%
21 flights
Avg arrival delay
11 min
47 min when late
Rank on route
#3 of 6
route average 78% on time
Key facts
- Alaska Airlines flights on SEA to LAS arrived on time 79% of the time in Aug 2025 – Jul 2026.
- 0.8% were cancelled, and 6% arrived an hour or more late.
- That ranks #3 of 6 airlines on this route, which averaged 78% on time overall.
- The largest source of delay minutes was late-arriving aircraft (33%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft33%
- Air traffic control & airport congestion33%
- Airline (crew, maintenance, cleaning, fueling)31%
- Extreme weather4%
- Security0%
Other airlines on SEA to LAS
- Delta Air Lines83% on time · 10 min avg delay
- Southwest Airlines70% on time · 16 min avg delay
- Frontier Airlines68% on time · 41 min avg delay
- Spirit Airlines67% on time · 20 min avg delay
- SkyWest Airlines100% on time · 0 min avg delay
Full SEA to LAS comparison →
Alaska Airlines on-time record across all routes →
2,622 Alaska Airlines flights tracked on this route; 21 cancelled, 3 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.