SkyWest Airlines PDX to STS on-time performance
SkyWest Airlines nonstop flights from Portland to Santa Rosa · Aug 2025 – Jul 2026Regional airline operating flights for United Express, Delta Connection, American Eagle and Alaska.
On-time arrivals
85%
arrived < 15 min late
Cancelled
0.3%
2 flights
Avg arrival delay
11 min
65 min when late
Rank on route
#1 of 2
route average 84% on time
Key facts
- SkyWest Airlines flights on PDX to STS arrived on time 85% of the time in Aug 2025 – Jul 2026.
- 0.3% were cancelled, and 6% arrived an hour or more late.
- That ranks #1 of 2 airlines on this route, which averaged 84% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (35%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)35%
- Extreme weather33%
- Late-arriving aircraft21%
- Air traffic control & airport congestion11%
- Security0%
Other airlines on PDX to STS
- Alaska Airlines80% on time · 13 min avg delay
Full PDX to STS comparison →
SkyWest Airlines on-time record across all routes →
614 SkyWest Airlines flights tracked on this route; 2 cancelled, 12 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.