SkyWest Airlines SEA to SFO on-time performance
SkyWest Airlines nonstop flights from Seattle to San Francisco · Aug 2025 – Jul 2026Regional airline operating flights for United Express, Delta Connection, American Eagle and Alaska.
On-time arrivals
72%
arrived < 15 min late
Cancelled
1.0%
11 flights
Avg arrival delay
16 min
53 min when late
Rank on route
#2 of 5
route average 62% on time
Key facts
- SkyWest Airlines flights on SEA to SFO arrived on time 72% of the time in Aug 2025 – Jul 2026.
- 1% were cancelled, and 8% arrived an hour or more late.
- That ranks #2 of 5 airlines on this route, which averaged 62% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (48%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion48%
- Airline (crew, maintenance, cleaning, fueling)40%
- Extreme weather12%
- Late-arriving aircraft1%
- Security0%
Other airlines on SEA to SFO
- Alaska Airlines58% on time · 24 min avg delay
- United Airlines62% on time · 27 min avg delay
- Delta Air Lines63% on time · 23 min avg delay
- Southwest Airlines100% on time · 0 min avg delay
Full SEA to SFO comparison →
SkyWest Airlines on-time record across all routes →
1,071 SkyWest Airlines flights tracked on this route; 11 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.