SkyWest Airlines SLC to SEA on-time performance
SkyWest Airlines nonstop flights from Salt Lake City to Seattle · Aug 2025 – Jul 2026Regional airline operating flights for United Express, Delta Connection, American Eagle and Alaska.
On-time arrivals
77%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
18 min
73 min when late
Rank on route
#3 of 4
route average 80% on time
Key facts
- SkyWest Airlines flights on SLC to SEA arrived on time 77% of the time in Aug 2025 – Jul 2026.
- 0% were cancelled, and 6% arrived an hour or more late.
- That ranks #3 of 4 airlines on this route, which averaged 80% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (64%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)64%
- Late-arriving aircraft20%
- Air traffic control & airport congestion9%
- Extreme weather8%
- Security0%
Other airlines on SLC to SEA
- Delta Air Lines83% on time · 10 min avg delay
- Alaska Airlines77% on time · 12 min avg delay
- Frontier Airlines68% on time · 21 min avg delay
Full SLC to SEA comparison →
SkyWest Airlines on-time record across all routes →
388 SkyWest Airlines flights tracked on this route; 0 cancelled, 4 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.