Southwest Airlines OAK to SEA on-time performance
Southwest Airlines nonstop flights from Oakland to Seattle · Aug 2025 – Jul 2026
On-time arrivals
75%
arrived < 15 min late
Cancelled
0.3%
3 flights
Avg arrival delay
13 min
49 min when late
Rank on route
#3 of 3
route average 78% on time
Key facts
- Southwest Airlines flights on OAK to SEA arrived on time 75% of the time in Aug 2025 – Jul 2026.
- 0.3% were cancelled, and 6% arrived an hour or more late.
- That ranks #3 of 3 airlines on this route, which averaged 78% on time overall.
- The largest source of delay minutes was late-arriving aircraft (52%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft52%
- Airline (crew, maintenance, cleaning, fueling)30%
- Air traffic control & airport congestion17%
- Security0%
- Extreme weather0%
Other airlines on OAK to SEA
- Alaska Airlines81% on time · 11 min avg delay
- SkyWest Airlines79% on time · 13 min avg delay
Full OAK to SEA comparison →
Southwest Airlines on-time record across all routes →
1,105 Southwest Airlines flights tracked on this route; 3 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.