Southwest Airlines PDX to SAN on-time performance
Southwest Airlines nonstop flights from Portland to San Diego · Aug 2025 – Jul 2026
On-time arrivals
71%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
11 min
28 min when late
Rank on route
#3 of 3
route average 77% on time
Key facts
- Southwest Airlines flights on PDX to SAN arrived on time 71% of the time in Aug 2025 – Jul 2026.
- 0% were cancelled, and 1% arrived an hour or more late.
- That ranks #3 of 3 airlines on this route, which averaged 77% on time overall.
- The largest source of delay minutes was late-arriving aircraft (44%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft44%
- Airline (crew, maintenance, cleaning, fueling)36%
- Air traffic control & airport congestion20%
- Extreme weather0%
- Security0%
Other airlines on PDX to SAN
- Alaska Airlines77% on time · 11 min avg delay
- SkyWest Airlines90% on time · 8 min avg delay
Full PDX to SAN comparison →
Southwest Airlines on-time record across all routes →
160 Southwest Airlines flights tracked on this route; 0 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.