SkyWest Airlines PDX to SEA on-time performance
SkyWest Airlines nonstop flights from Portland to Seattle · Aug 2025 – Jul 2026Regional airline operating flights for United Express, Delta Connection, American Eagle and Alaska.
On-time arrivals
86%
arrived < 15 min late
Cancelled
0.6%
20 flights
Avg arrival delay
9 min
59 min when late
Rank on route
#2 of 3
route average 85% on time
Key facts
- SkyWest Airlines flights on PDX to SEA arrived on time 86% of the time in Aug 2025 – Jul 2026.
- 0.6% were cancelled, and 4% arrived an hour or more late.
- That ranks #2 of 3 airlines on this route, which averaged 85% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (47%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)47%
- Extreme weather18%
- Late-arriving aircraft18%
- Air traffic control & airport congestion17%
- Security0%
Other airlines on PDX to SEA
- Alaska Airlines83% on time · 9 min avg delay
- Delta Air Lines88% on time · 8 min avg delay
Full PDX to SEA comparison →
SkyWest Airlines on-time record across all routes →
3,504 SkyWest Airlines flights tracked on this route; 20 cancelled, 0 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.