Delta Air Lines LAS to SEA on-time performance
Delta Air Lines nonstop flights from Las Vegas to Seattle · Aug 2025 – Jul 2026
On-time arrivals
88%
arrived < 15 min late
Cancelled
1.0%
18 flights
Avg arrival delay
12 min
88 min when late
Rank on route
#1 of 6
route average 82% on time
Key facts
- Delta Air Lines flights on LAS to SEA arrived on time 88% of the time in Aug 2025 – Jul 2026.
- 1% were cancelled, and 5% arrived an hour or more late.
- That ranks #1 of 6 airlines on this route, which averaged 82% on time overall.
- The largest source of delay minutes was late-arriving aircraft (47%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft47%
- Airline (crew, maintenance, cleaning, fueling)44%
- Air traffic control & airport congestion8%
- Extreme weather2%
- Security0%
Other airlines on LAS to SEA
- Alaska Airlines83% on time · 12 min avg delay
- Southwest Airlines72% on time · 14 min avg delay
- Frontier Airlines82% on time · 10 min avg delay
- Spirit Airlines75% on time · 16 min avg delay
- SkyWest Airlines86% on time · 9 min avg delay
Full LAS to SEA comparison →
Delta Air Lines on-time record across all routes →
1,742 Delta Air Lines flights tracked on this route; 18 cancelled, 1 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.