SkyWest Airlines SFO to SEA on-time performance
SkyWest Airlines nonstop flights from San Francisco to Seattle · Aug 2025 – Jul 2026Regional airline operating flights for United Express, Delta Connection, American Eagle and Alaska.
On-time arrivals
70%
arrived < 15 min late
Cancelled
1.1%
12 flights
Avg arrival delay
16 min
51 min when late
Rank on route
#4 of 5
route average 73% on time
Key facts
- SkyWest Airlines flights on SFO to SEA arrived on time 70% of the time in Aug 2025 – Jul 2026.
- 1.1% were cancelled, and 8% arrived an hour or more late.
- That ranks #4 of 5 airlines on this route, which averaged 73% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (37%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion37%
- Airline (crew, maintenance, cleaning, fueling)37%
- Extreme weather20%
- Late-arriving aircraft6%
- Security0%
Other airlines on SFO to SEA
- Alaska Airlines70% on time · 18 min avg delay
- United Airlines75% on time · 15 min avg delay
- Delta Air Lines81% on time · 15 min avg delay
- Southwest Airlines100% on time · 3 min avg delay
Full SFO to SEA comparison →
SkyWest Airlines on-time record across all routes →
1,073 SkyWest Airlines flights tracked on this route; 12 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.